taxonID	type	description	language	source
DE50E75DFFC699467695F95EFDEFF83A.taxon	materials_examined	Type host. Pseudopercis semifasciata (Cuvier) (Pisces: Pinguipedidae). Site of infection. Rectum. Type locality. Argentina, Buenos Aires Province, Coast of Miramar and Necochea, (38 ° 039´S, 57 ° 30 ʹW – 38 º 44 ’ S, 58 º 44 ’ W). Holotype: 3 MLP 6255. Paratypes: MLP 6256 (allotype Ƥ); MLP 6257 (433, 4 ƤƤ). Remarks. Paratypes (233, 2 ƤƤ) at United State National Parasite Collection, Betsville, Maryland. Reference. Lanfranchi & Timi (2011).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC599457695FEE0FD11FDF9.taxon	materials_examined	Type host. Guira guira (Gmelin) (Aves: Cuculidae). Site of infection. Intestine. Type locality. Argentina, Formosa Province, Pirané, Estancia La Marcela (26 ° 17 ʹ 35 ” S; 59 ° 06 ʹ 67 ” W). Holotype: 3 MLP 5945. Paratypes: MLP 5946 (allotype Ƥ); MLP 5947 - 5950 (2 33; 2 ƤƤ). Reference. Lunaschi & Drago (2010 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC599457695FD35FD00FBEF.taxon	materials_examined	Type host. Curimata biornata Braga & Azpelicueta (Pisces: Curimatidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Los Talas (34 ° 52 ʹS; 57 ° 53 ʹW). Holotype: 3 MLP 1257. Paratypes: MLP 1249 (allotype Ƥ), MLP 1242, MLP 1245, MLP 1246, MLP 1250 – MLP 1256, MLP 1258 – 1270, MLP 1272. Reference. Vizcaíno & Lunaschi (1987).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC599457695F94AFD62F82E.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Ensenada, Punta Lara. Syntypes: MLP 2197, MLP 2211.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC599457695F94AFD62F82E.taxon	discussion	Remarks. P. patii was synonymised with Pomphorhynchus sphaericus Pertierra, Spatz & Doma, 1996 by Amin et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC499447695FEACFD8EFD97.taxon	materials_examined	Type host. Pterodroma externa (Salvin) (Aves: Procellariidae). Site of infection. Stomach, oesophagus, and gizzard lining. Type locality. Chile, Pacific Ocean, Archipiélago Juan Fernández (33 º 41 ʹ – 33 º 45 ʹS, 79 º 01 ʹ – 80 º 45 ʹW). Holotype: 3 MLP 5630. Paratypes: MLP 5631 (allotype Ƥ); MLP 5632 (3 ƤƤ). Remarks. Other material in the U. S. National Parasite Collection, Beltsville, Maryland. Reference. Díaz et al. (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC499447695FCD1FDC0FBA7.taxon	materials_examined	Type host. Haematopus palliatus Temminck (Aves: Haematopodidae). Site of infection. Gizzard. Type locality. Argentina, Buenos Aires Province, Laguna de Mar Chiquita (37 º 46 ʹS, 57 º 27 ʹW). Holotype: 3 MLP 4066 / 1. Paratypes: MLP 4066 / 2 (allotype Ƥ); MLP 4066 / 3 (13, 1 Ƥ). Remarks. In the original description (Cremonte et al. 1999) the collection numbers are refered as 40,066 / 1; 40,066 / 2 and 40,066 / 3 due to a mistake. Reference. Cremonte et al. (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC499447695FB21FD8EFA3F.taxon	materials_examined	Type host. Calidris canutus rufa (Wilson) (Aves: Scolopacidae). Site of infection. Oesophagus. Type locality. Uruguay, Rocha, Laguna Rocha (34 º 39 ʹS, 54 º 15 ʹW). Holotype: 3 MLP 5319. Paratypes: MLP 5320 (allotype Ƥ); MLP 5321 (3 specimens). Reference. Díaz et al. (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC499447695F9A9FD05F84F.taxon	materials_examined	Type host. Larus dominicanus Lichtenstein (Aves: Laridae). Site of infection. Proventriculus. Type locality. Argentina, Buenos Aires Province, Balneario Orense (38 º 42 ʹS, 59 º 47 ʹW). Holotype: 3 MLP 4065 / 1. Paratypes: MLP 4065 / 2 (allotype Ƥ); MLP 4065 / 3 (13, 1 Ƥ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC499447695F9A9FD05F84F.taxon	discussion	Remarks. In the original description (Cremonte & Navone 1999) the collection numbers are refered as 40,065 / 1; 40,065 / 2 and 40,065 / 3 due to a mistake. Reference. Cremonte & Navone (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC399437695FD36FDD7FC0A.taxon	materials_examined	Type host. Akodon azarae (Fischer) (Rodentia, Cricetidae). Site of infection. Pulmonary arteries. Type locality. Argentina, Buenos Aires Province, Castelli, Cerro de la Gloria (36 º 06 ʹS, 57 º 46 ʹW). Holotype: 3 MLP 5715. Paratypes: MLP 5716 (allotype Ƥ), MLP 5717 (333, 1 Ƥ). Reference. Robles et al. (2008 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC399437695FB71FDA6FA2C.taxon	materials_examined	Type host. Phalacrocorax brasilianus (Gmelin) (Aves: Phalacrocoracidae). Site of infection. Stomach. Type locality. Chile, VIII Región, Laguna Santa Elena (37 º 15 ʹS, 72 º 28 ʹW). Holotype: 3 MLP 6208. Paratypes: MLP 6209 (allotype Ƥ), MLP 6210. Remarks. Holotype accession number in Genbank is GQ 847539. Reference. Garbin et al. (2011).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC399437695F9D5FDA1F914.taxon	materials_examined	Type host. Phalacrocorax atriceps King (Aves: Phalacrocoracidae). Site of infection. Stomach. Type locality. Argentina, Chubut Province, Bahía Bustamante (45 º 11 ʹS, 66 º 30 ʹW). Holotype: 3 MLP 5748. Paratypes: MLP 5749 (allotype Ƥ), MLP 5750. Reference. Garbin et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC399437695FF19FE6EFDFF.taxon	materials_examined	Type host. Plegadis chihi (Vieillot) (Aves: Threskiornithidae). Site of infection. Gizzard. Type locality. Argentina, Buenos Aires Province, Punta Blanca (34 ° 56 ʹS, 57 ° 41 ʹW). Holotype: 3 MLP 3714 / 3. Paratypes: MLP 3702 / 4 (allotype Ƥ), MLP 3701 / 4 (433, 8 ƤƤ), MLP 3713 / 5 (333), 3734 / 5 (233), MLP 3741 / 5 (1 Ƥ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC399437695FF19FE6EFDFF.taxon	discussion	Remarks. Paratypes (13, 1 Ƥ) in the Institute of Parasitology, České Budĕjovice, Czech Republic. Reference. Digiani (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC399427695F810FDBAFE6C.taxon	materials_examined	Type host. Oxymycterus misionalis Sandborn (Rodentia, Cricetidae). Site of infection. Caecum. Type locality. Argentina, Misiones Province, Departamento Capital, Arroyo Zaiman (27 ° 27 ʹS, 55 ° 54 ʹW). Syntypes: MLP 180.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC399427695F810FDBAFE6C.taxon	discussion	Remarks. Other material deposited in the Muséum national d´Histoire naturelle de Paris, France (mentioned as paratypes in the original description). Reference. Sutton et al. (1980).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC299427695FBF0FD89FAC9.taxon	materials_examined	Type host. Conger orbignianus Valenciennes (Pisces: Congridae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 08 ʹS, 57 º 32 ʹW). Holotype: 3 MLP 5529. Paratypes: MLP 5530 (allotype Ƥ), MLP 5531 (333, 5 ƤƤ). Reference. Timi et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC299427695FA78FDC6F919.taxon	materials_examined	Type host. Congiopodus peruvianus Cuvier & Valenciennes (Pisces: Congiopodidae). Site of infection. Gall bladder. Type locality. Argentina, Patagonia, Continental Shelf (45 – 48 ºS, 60 – 64 ºW). Holotype: 3 MLP 5875. Paratypes: MLP 5876 (allotype Ƥ), MLP 5877 (1033, 10 ƤƤ). Remarks. Paratypes (1033, 10 ƤƤ) in the Helminthological Collection of the Institute of Parasitology, České Budĕjovice, Czech Republic Reference. Cantatore et al. (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC299427695FDA2FD2DFCBE.taxon	materials_examined	Type host. Nymphs of Gryllodes laplatae Sauss (Insecta: Gryllidae). Site of infection. Intestine stomodeus. Type locality. Argentina, Buenos Aires Province, La Plata, City Bell (34 º 51 ʹ 58 ʹ S, 58 ° 2 ʹ 32 ʹ W). Syntype: MLP 4848. Reference. Camino & de Villalobos (2002).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC299417695F848FD89FEF7.taxon	materials_examined	Type host. Pinguipes brasilianus Cuvier (Pisces: Pinguipedidae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 08 ʹS, 57 º 32 ʹW). Holotype: 3 MLP 5647. Paratypes: MLP 5648 (allotype Ƥ), MLP 5649 (533, 5 ƤƤ). Reference. Timi et al. (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC199417695FC0EFD05FB52.taxon	materials_examined	Type host. Adults of Gryllodes laplatae Saussure (Insecta: Gryllidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, La Plata, Gorina (34 ° 55 ʹS, 58 ° 02 ʹW). Holotype: 3 MLP 5073 / 1. Paratype: MLP 5073 / 2 (allotype Ƥ). Reference. Camino & Reboredo (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC199417695FAC9FD05FA17.taxon	materials_examined	Type host. Adults of Gryllodes laplatae Saussure (Insecta: Grillidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, La Plata, City Bell. Holotype: 3 MLP 5071 / 1. Paratype: (allotype Ƥ) MLP 5071 / 2. Reference. Camino & Reboredo (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC199417695F98BFD34F8D5.taxon	materials_examined	Type host. Nymphs of Anurogryllus muticus (De Geer) (Insecta: Gryllidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, La Plata, Gonnet. Holotype: 3 MLP 4857 / 1. Paratype: MLP 4857 / 2 (allotype Ƥ). Reference. Camino & Maiztegui (2002 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC199417695FE71FDD8FD07.taxon	materials_examined	Type host. Nemadactylus bergi (Norman) (Pisces: Latridae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, SW Atlantic, Mar del Plata (38 ° 08 ʹS, 57 ° 32 ʹW). Holotype: 3 MLP 5878. Paratypes: MLP 5879 (allotype Ƥ), MLP 5880 (533, 5 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC199417695FE71FDD8FD07.taxon	discussion	Remarks. Paratypes (533, 5 ƤƤ) in the Helminthological Collection of the Institute of Parasitology, České Budĕjovice, Czech Republic. Reference. Rossin & Timi (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC199407695F856FD05FEF7.taxon	materials_examined	Type host. Adults of Gryllodes laplatae Saussure (Insecta: Gryllidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Lincoln (34 ° 51 ʹ 54 ʺS, 61 ° 31 ʹ 55 ʺW). Holotype: 3 MLP 5072 / 1. Paratype: MLP 5072 / 2 (allotype Ƥ). Reference. Camino & Reboredo (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC099407695FEABFDAAFDB5.taxon	materials_examined	Type host. Nymphs of Anurogryllus muticus (De Geer) (Insecta: Gryllidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, La Plata, Gorina (34 ° 55 ʹS, 58 ° 02 ʹW). Holotype: 3 MLP 5484 / 1. Paratype: MLP 5484 / 2 (allotype Ƥ). Reference. Camino et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC099407695FA90FDF4F9A9.taxon	materials_examined	Type host. Urophycis brasiliensis (Kaup) (Pisces: Phycidae). Site of infection. Posterior end of intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 08 ʹS, 57 º 32 ʹW). Holotype: 3 MLP 5314. Paratypes: MLP 5315 (allotype Ƥ), MLP 5316 (533), MLP 5317 (5 ƤƤ). Reference. Lanfranchi et al. (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC099407695F952FDD7F86E.taxon	materials_examined	Type host. Genypterus blacodes Schneider (Pisces: Ophidiidae). Site of infection. Small intestine. Type locality. Argentina, South zone of the Argentinean Shelf, (49 ° 20 ʹS, 63 ° 25 ʹW). Holotype: 3 MLP 3497 / 1. Paratypes: (allotype Ƥ) MLP 3497 / 2, MLP 3497 / 3 (9 33, 9 ƤƤ). Reference. Sardella et al. (1997).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC099407695FCFAFD1BFB9E.taxon	materials_examined	Type host. Holochilus brasiliensis (Desmarest). (Mammalia: Cricetidae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, Campana, INTA. Holotype: 3 MLP 1331 / 1. Paratype: MLP 1331 / 2 (allotype Ƥ). Remarks. Paratypes (2 33) from Tapirus terrestris L. from French Guyana deposited in the Muséum national d’Histoire naturelle de Paris, France. Reference. Durette-Desset et al. (1997).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCF994F7695FF53FDA4FE6D.taxon	materials_examined	Type host. Odontesthes argentinus (Valenciennes) (Pisces: Atherinidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 00 ʹS, 57 º 34 ʹW). Holotype: 3 MLP 4882. Paratypes: MLP 4883 (allotype Ƥ), MLP 4884 (533), MLP 4885 (5 ƤƤ). Reference. Daniel et al. (2002).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCF994F7695FE1EFDEEFD22.taxon	materials_examined	Type host. Conger orbignianus Valenciennes (Pisces: Congridae). Site of infection. Posterior end of intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 08 ʹS, 57 º 32 ʹW). Holotype: 3 MLP 5452. Paratypes: MLP 5453 (allotype Ƥ), MLP 5454 (533, 5 ƤƤ). Reference. Timi & Lanfranchi (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCF994F7695FCA6FDA8FBBA.taxon	materials_examined	Type host. Pogonias cromis (Linnaeus) (Pisces: Sciaenidae). Site of infection. Middle and posterior intestine. Type locality. Argentina, Buenos Aires Province, Mar Chiquita coastal lagoon (37 º 32 ʹS, 57 º 19 ʹW). Holotype: 3 MLP 5520. Paratypes: MLP 5521 (allotype Ƥ), MLP 5522 (433, 5 ƤƤ). Reference. Alarcos et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCF994F7695FB61FD89FA14.taxon	materials_examined	Type host. Umbrina canosai Berg (Pisces: Sciaenidae). Site of infection. Posterior end of intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata, (38 ° 08´S, 57 ° 32´W). Holotype: 3 MLP 5887. Paratypes: MLP 5888 (allotype Ƥ), MLP 5889 (533, 5 ƤƤ from U. canosai), MLP 5890 [533, 5 ƤƤ from Micropogonias furnieri (Desmarest)].	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCF994F7695FB61FD89FA14.taxon	discussion	Remarks. Paratypes (533, 2 ƤƤ) [from U. canosai] in the Helminthological Collection of the Instituto Oswaldo Cruz, Brazil. Reference. Timi et al. (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCF994F7695F990FDC9F8A9.taxon	materials_examined	Type host. Acanthistiuis brasilianus (Valenciennes) (Pisces: Serranidae). Site of infection. Posterior end of intestine. Type locality. Argentina, coastal area of Buenos Aires Province, Mar del Plata, (38 ° 08´S, 57 ° 32´W). Holotype: 3 MLP 4871. Paratypes: MLP 4872 (allotype Ƥ), MLP 4873 (533, 5 ƤƤ). Reference. Timi & Sardella (2002).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCE994E7695FEE0FCAEFCD9.taxon	materials_examined	Type host. Galaxias platei Steindachner (Pisces: Galaxiidae). Site of infection. Stomach. Type locality. Argentina, Rio Negro Province, Lago Moreno (41 º 05 ʹS, 71 º 32 ʹW). Paratypes: MLP 5756 (433, 4 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCE994E7695FEE0FCAEFCD9.taxon	discussion	Remarks. Holotype (3), allotype (Ƥ), and 10 paratypes (5 ƤƤ, 533,) deposited in the Colección Nacional de Parasitología del Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina; 14 paratypes (7 ƤƤ, 733) deposited in the Colección Parasitológica de la Universidad Nacional del Comahue, (Bariloche, Argentina); 6 paratypes (3 ƤƤ, 333) deposited in the United States National Parasite Collection, Beltsville, Maryland. Reference. Brugni & Viozzi (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCE994E7695FA20FDF4F8F1.taxon	materials_examined	Type host. Percophis brasiliensis Quoy & Gaimard (Pisces: Percophidae). Site of infection. Blood vessels and body cavity. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 08 ʹS, 57 º 32 ʹW). Paratypes: MLP 5623 (433, 5 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCE994E7695FA20FDF4F8F1.taxon	discussion	Remarks. Holotype (3), allotype (Ƥ) and 6 paratypes (333, 3 ƤƤ) in the Helminthological Collection of the Institute of Parasitology, České Budĕjovice, Czech Republic .. Reference. Braicovich et al. (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCE994E7695FCA6FDA1FAEE.taxon	materials_examined	Type host. Galaxias maculatus (Jenyns) (Pisces: Galaxiidae). Site of infection. Stomach. Type locality. Argentina, Neuquén Province, Laguna Patagua (40 º 47´S, 71 º 37 ʹW). Paratypes: MLP 5865 (333, 3 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCE994E7695FCA6FDA1FAEE.taxon	discussion	Remarks. Holotype (3), allotype (Ƥ), and 6 paratypes (333, 3 ƤƤ) deposited in the Colección Nacional de Parasitología del Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina; 12 paratypes (5 ƤƤ, 733) deposited in the Colección Parasitológica de la Universidad Nacional del Comahue, (Bariloche, Argentina); 4 paratypes (2 ƤƤ, 2 33,) deposited in the United States National Parasite Collection, Beltsville, Maryland. Reference. Brugni et al. (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994D7695F9C0FD55F8D1.taxon	materials_examined	Type host. Oryzomys flavescens (Waterhouse) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Uruguay, Artigas Department, Calnú, Colonia España (34 ° 23 ' 60 '' S, 57 ° 10 ' W). Holotype: 3 MLP 2046 / 1. Paratypes: MLP 2046 / 2 (allotype Ƥ), MLP 2046 / 3 (233, 3 ƤƤ) (cited as MLP 2046 aC).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994D7695F9C0FD55F8D1.taxon	discussion	Remarks. paratypes (233, 3 ƤƤ) deposited in theMuséum national d’Histoire naturelle de Paris. Reference. Sutton & Durette – Desset (1991).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994D7695FC46FDF7FACE.taxon	materials_examined	Type host. Galaxias maculatus (Jenyns) (Pisces: Galaxiidae). Site of infection. Stomach. Type locality. Argentina, Río Negro Province, Lago Moreno (41 º 03 ʹS, 71 º 31 ʹW). Paratypes: MLP 4927 (533, 8 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994D7695FC46FDF7FACE.taxon	discussion	Remarks. Holotype (3) and allotype (Ƥ) and paratypes (533, 8 ƤƤ) deposited in the Colección Nacional de Parasitología del Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina; paratypes (633, 10 ƤƤ) deposited in the Colección Parasitológica de la Universidad Nacional del Comahue (Bariloche, Argentina), and paratypes (333, 3 ƤƤ) deposited in the United States National Parasite Collection, Beltsville, Maryland. Reference. Brugni & Viozzi (2010).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994D7695FF19FDF7FD4F.taxon	materials_examined	Type host. Percichthys trucha (Cuvier & Valenciennes) (Pisces: Percichthyidae). Site of infection. Sinus venosus and atrium (adult males and gravid females), intestine (larvae), and abdominal cavity (larvae and sub – adults). Type locality. Argentina, Río Negro Province, Lago Escondido (41 º 05 ʹS, 71 º 35 ʹW). Paratypes: MLP 5519 (433, 4 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994D7695FF19FDF7FD4F.taxon	discussion	Remarks. Holotype (3) and allotype (Ƥ), paratypes (4 ƤƤ, 433) deposited in the Colección Nacional de Parasitología del Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina; paratypes (10 ƤƤ, 1033) deposited in the Colección Parasitológica de la Universidad Nacional del Comahue, (Bariloche, Argentina); paratypes (1 3, 1 Ƥ) deposited in the Helminthological Collection, Institute of Parasitology, České Budĕjovice, Czech Republic. Reference. Brugni & Viozzi (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994C7695F810FD4DFE6C.taxon	materials_examined	Type host. Graomys griseoflavus (Waterhouse) (Mammalia: Muridae). Site of infection. Small intestine. Type locality. Argentina, San Luis Province, San Francisco del Monte de Oro (32 º 36 ʹS, 66 º 08 ʹW). Holotype: 3 MLP 3459 / 1. Paratypes: MLP 3459 / 2 (allotype Ƥ) (cited as MLP 3459 / 1 a), MLP 3459 / 3 (333, 5 Ƥ) (cited as MLP 3459 / 1 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCD994C7695F810FD4DFE6C.taxon	discussion	Remarks. Paratypes (333, 5 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2003 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994C7695FDE5FDAFFCBC.taxon	materials_examined	Type host. Scapteromys aquaticus Thomas (Mammalia: Muridae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Isla Talavera (33 º 53 ʹ 18 ʹ S, 59 º 03 ʹ 59 ʹ W). Holotype: 3 MLP 4694 / 1. Paratypes: MLP 4694 / 2 (allotype Ƥ) (cited as MLP 4694 / 1 a), MLP 4694 / 3 (17133, 252 ƤƤ) (cited as MLP 4694 / 1 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994C7695FDE5FDAFFCBC.taxon	discussion	Remarks. Paratypes (2033, 20 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994C7695FC68FDAFFAC1.taxon	materials_examined	Type host. Scapteromys aquaticus Thomas (Mammalia: Muridae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Isla Talavera (33 º 53 ʹ 18 ʹ S, 59 º 03 ʹ 59 ʹ W). Holotype: 3 MLP 4691 / 2. Paratypes: MLP 4691 / 3 (allotype Ƥ) (cited as MLP 4691 / 1 a), MLP 4691 / 4 (333, 6 ƤƤ) (cited as MLP 4691 / 1 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994C7695FC68FDAFFAC1.taxon	discussion	Remarks. Paratypes (13, 1 Ƥ) in the Muséum national d’Histoire naturelle, Paris, France. M. frederici was synonymised with Malvinema scapteromys (Suriano & Navone, 1996) Digiani, Navone & Durette – Desset, 2007 by Digiani et al. (2007). Reference. Digiani et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994C7695FABAFDAFF95E.taxon	materials_examined	Type host. Scapteromys aquaticus Thomas (Mammalia: Muridae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Isla Talavera (33 º 53 ʹ 18 ʹ S, 59 º 03 ʹ 59 ʹ W). Holotype: 3 MLP 4694 / 4. Paratypes: MLP 4694 / 5 (allotype Ƥ) (cited as MLP 4694 / 2 a), MLP 4694 / 6 (17533, 133 ƤƤ) (cited as MLP 4694 / 2 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994C7695FABAFDAFF95E.taxon	discussion	Remarks. Paratypes (2033, 20 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994B7695F8C0FD4CFF3F.taxon	materials_examined	Type host. Scapteromys aquaticus Thomas (Mammalia: Muridae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Isla Talavera (33 º 53 ʹ 18 ʹ S, 59 º 03 ʹ 59 ʹ W). Holotype: 3 MLP 4949 / 1. Paratypes: MLP 4949 / 2 (allotype Ƥ) (cited as MLP 4949 a), MLP 4949 / 3 (3 ƤƤ, 1 Ƥ in 3 fragments, 13 in 2 fragments, 1 Ƥ in 3 fragments) (cited as MLP 4949 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCC994B7695F8C0FD4CFF3F.taxon	discussion	Remarks. Other material (13, 1 Ƥ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2003 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCB994B7695FAF7FDAFF9AD.taxon	materials_examined	Type host. Romerolagus diazi (Ferrari-Pérez) (Mammalia: Leporidae). Site of infection. Small intestine. Type locality. Mexico, D. F. Mexico, 33 km S, 5 km. NW, Cerro Pelado. Syntypes: (13, 1 Ƥ) MLP 5640 (donated material by Dr. Luís García Prieto). Remarks. Syntypes (233, 2 ƤƤ) deposited in the Colección Nacional de Helmintos, México. Reference. Digiani et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCB994B7695FEA9FDAFFD07.taxon	materials_examined	Type host. Sylvilagus floridanus (Allen) (Mammalia: Leporidae). Site of infection. Small intestine. Type locality. Costa Rica, Guanacaste, Sector Quebrada Grande, 2 km west of the village (10 º 51 ʹ 25 ʹ N, 85 º 27 ʹ 0 9 ʹ W). Paratypes: MLP 5873 (833, 22 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCB994B7695FEA9FDAFFD07.taxon	discussion	Remarks. Holotype, allotype, and 32 paratypes deposited in the Colección Nacional de Helmintos, San José de Costa Rica, paratypes (533, 15 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France and paratypes (1533, 68 ƤƤ) in the United States National Parasite Collection. Reference. Digiani et al. (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCB994B7695FCFBFDAFFB71.taxon	materials_examined	Type host. Sylvilagus floridanus (Allen) (Mammalia: Leporidae). Site of infection. Small intestine. Type locality. Costa Rica, Guanacaste, Los Almendros, Sector El Hacha, (11 º 00 ʹ 0 0 ʹ N, 85 º 32 ʹ 0.9 ʹ W). Paratypes: MLP 5639 (13, 2 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCB994B7695FCFBFDAFFB71.taxon	discussion	Remarks. Holotype, allotype, and 4 paratypes deposited in the Colección Nacional de Helmintos, San José de Costa Rica; paratype 3 in the Muséum national d’Histoire naturelle, Paris, France; paratypes (13, 1 Ƥ) in the Colección Nacional de Helmintos, México; paratypes (13, 1 Ƥ) in the United States National Parasite Collection. Reference. Digiani et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCB994B7695F91BFDAAF825.taxon	materials_examined	Type host. Ctenomys talarum Thomas (Mammalia: Octodontidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Mar de Cobo (37 º 58 ʹS, 57 º 34 ʹW). Holotype: 3 MLP 5526. Paratypes: MLP 5527 (allotype Ƥ), MLP 5528 (533, 5 ƤƤ). Reference. Rossin et al. (2006 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA994A7695FF1AFD5EFDD2.taxon	materials_examined	Type locality. Argentina, Catamarca Province, Andalgalá, confluence Mina and Caudado rivers (27 º 23 ʹS, 66 º 15 ʹW). Holotype: 3 MLP 4627 / 1. Paratypes: MLP 4627 / 2 (allotype Ƥ) (cited as MLP 4627 / 1 a), MLP 4627 / 3 (633, 4 ƤƤ) (cited as MLP 4627 / 1 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA994A7695FF1AFD5EFDD2.taxon	discussion	Remarks. Paratypes (23, 2 Ƥ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA994A7695FD49FD55FC74.taxon	materials_examined	Type host. Reithrodon auritus Fischer (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Balcarce (37 ° 50 ʹ 47 ʺS, 58 ° 15 ʹ 19 ʺW). Holotype: 3 MLP 688 / 1. Paratypes: MLP 688 / 2 (allotype Ƥ), MLP 688 / 3 (13, 4 ƤƤ) (cited as MLP 688 C). Remarks. Paratypes (13, 3 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Durette – Desset & Sutton (1985).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA994A7695FC30FD55FAED.taxon	materials_examined	Type host. Akodon azarae azarae (Fischer) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Balcarce (37 ° 50 ʹ 47 ʺS, 58 ° 15 ʹ 19 ʺW). Holotype: 3 MLP 687 / 1. Paratypes: MLP 687 / 2 (allotype Ƥ), MLP 687 / 3 (633, 6 ƤƤ) (cited as MLP 687 C). Remarks. Paratypes (533, 8 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Durette – Desset & Sutton (1985).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA994A7695FA9EFD5EF95E.taxon	materials_examined	Type locality. Argentina, Catamarca Province, Andalgalá, confluence Mina and Caudado rivers (27 º 23 ʹS, 66 º 15 ʹW). Holotype: 3 MLP 4626 / 1. Paratypes: MLP 4626 / 2 (allotype Ƥ) (cited as MLP 4626 / 2 a), MLP 4626 / 3 (233, 6 ƤƤ) (cited as MLP 4626 / 2 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA994A7695FA9EFD5EF95E.taxon	discussion	Remarks. Paratypes (4 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA99497695F938FD55FF3F.taxon	materials_examined	Type host. Oryzomys flavescens (Waterhouse) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Uruguay, Artigas Department, Calnú, Colonia España (34 ° 23 ' 60 '' S, 57 ° 10 ' W). Holotype: 3 MLP 2046 / 4. Paratypes: MLP 2046 / 5 (allotype Ƥ), MLP 2046 / 6 (1433, 13 ƤƤ) (cited as MLP 2046 bC).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFCA99497695F938FD55FF3F.taxon	discussion	Remarks. Paratypes (1433, 14 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Sutton & Durette – Desset (1991).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FEE3FD4DFDB5.taxon	materials_examined	Type host. Graomys griseoflavus (Waterhouse) (Mammalia: Muridae). Site of infection. Intestine. Type locality. Argentina, San Luis Province, San Francisco del Monte de Oro (32 º 36 ʹS, 66 º 08 ʹW). Holotype: 3 MLP 3465 / 1. Paratypes: MLP 3465 / 2 (allotype Ƥ) (cited as MLP 3465 / 1 a), MLP 3465 / 3 (233, 1 Ƥ) (cited as MLP 3465 / 1 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FEE3FD4DFDB5.taxon	discussion	Remarks. Paratype (13) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2003 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FD76FD5EFBE6.taxon	materials_examined	Type locality. Argentina, Catamarca Province, Andalgalá, confluence Mina and Caudado rivers (27 º 23 ʹS, 66 º 15 ʹW). Holotype: 3 MLP 4632 / 1. Paratypes: MLP 4632 / 1 a (allotype Ƥ) (cited as MLP 4632 / 1 a), MLP 4632 / 3 (233, 2 ƤƤ) (cited as MLP 4632 / 1 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FD76FD5EFBE6.taxon	discussion	Remarks. Paratypes (13, 1 Ƥ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FBA5FD55FA7C.taxon	materials_examined	Type host. Oryzomys flavescens (Waterhouse) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Campana, RN 12, Km 100 (35 ° 6 ʹ 59 ʺS, 60 ° 28 ʹ 45 ʺW). Holotype: 3 MLP 1914 / 1. Paratypes: MLP 1914 / 2 (allotype Ƥ), MLP 1914 / 3. (933, 9 ƤƤ) (cited as MLP 1914 bC).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FBA5FD55FA7C.taxon	discussion	Remarks. Paratypes (933, 10 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Sutton & Durette – Desset (1991).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FA28FD4CF8C9.taxon	materials_examined	Type host. Scapteromys aquaticus Thomas (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Isla Talavera (33 º 53 ʹ 18 ʹ S, 59 º 03 ʹ 59 ʹ W). Holotype: 3 (in 2 fragments) MLP 4694 / 7. Paratypes: MLP 4694 / 8 (allotype Ƥ) (cited as MLP 4694 / 3 a), MLP 4694 / 9 (6 ƤƤ, one fragmented) (cited as MLP 4694 / 3 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999497695FA28FD4CF8C9.taxon	discussion	Remarks. Paratypes (5 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2003 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999487695F878FD4DFE6C.taxon	materials_examined	Type host. Oxymycterus rufus (Fischer) (Mammalia: Muridae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Isla Talavera (33 º 53 ʹ 18 ʹ S, 59 º 03 ʹ 59 ʹ W). Holotype: 3 MLP 4950 / 1. Paratypes: MLP 4950 / 2 (allotype Ƥ) (cited as MLP 4950 a), MLP 4950 / 3 (733, 15 ƤƤ) (cited as MLP 4950 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC999487695F878FD4DFE6C.taxon	discussion	Remarks. Paratypes (533, 5 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Digiani & Durette – Desset (2003 c).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC899487695F9ABFDBAF84D.taxon	materials_examined	Type host. Solenopsis invicta Buren (Hymenoptera: Formicidae). Site of infection. Gaster. Type locality. Argentina, Corrientes Province, Estación Biológica Corrientes (27 º 33 ʹS, 58 º 41 ʹW). Holotype: 3 MLP 5651. Paratype: MLP 5622 (allotype Ƥ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC899487695F9ABFDBAF84D.taxon	discussion	Remarks. Paratypes 3 and Ƥ deposited in the United States Department of Agriculture, Nematode Laboratory, Beltsville, Maryland and the authors’ collections. Reference. Poinar et al. (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC899487695FBF2FDCFFA7A.taxon	materials_examined	Type host. Lagidium viscacia boxi Thomas (Mammalia: Chinchillidae). Site of infection. Caeca and large intestine. Type locality. Argentina, Chubut Province, Paso del Sapo (42 ° 44 ' 27.84 " S, 69 ° 36 ' 17.99 " W). Holotype: 3 MLP 1338 / 1. Paratypes: MLP 1338 / 2 (allotype Ƥ, 4 specimens). These specimens were not individualized by the authors in a lot of 6 specimens cited as MLP 1338 D.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC899487695FBF2FDCFFA7A.taxon	discussion	Remarks. 233, 5 ƤƤ in the Muséum national d’Histoire naturelle, Paris, France (not mentioned as paratypes in the original description). Reference. Hugot & Sutton (1989).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC899487695FDE5FC2BFCBC.taxon	materials_examined	Type host. Oryzomys flavescens (Waterhouse) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Campana, RN 12, Km 100 (35 ° 6 ʹ 59 ʺS, 60 ° 28 ʹ 45 ʺW). Holotype: 3 MLP 1914 / 4. Paratypes: MLP 1914 / 5 (allotype Ƥ), MLP 1914 / 6 (833, 8 ƤƤ) (cited as MLP 1914 aC).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFC899487695FDE5FC2BFCBC.taxon	discussion	Remarks. Paratypes (833, 8 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD799577695FF19FDE3FE27.taxon	materials_examined	Type host. Diloboderus abderus Sturm (Insecta: Scarabaeidae). Site of infection. Unknown. Type locality. Argentina, Buenos Aires Province, Hernandez. Holotype: 3 MLP 5485 / 1. Paratype: MLP 5485 / 2 (allotype Ƥ). Reference. Camino & Marino (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD799577695FDDBFD0AFCE5.taxon	materials_examined	Type host. Diloboderus abderus Sturm (Insecta: Scarabaeidae) Site of infection. Unknown. Type locality. Argentina, Entre Ríos Province, Paraná. Holotype: 3 MLP 5486 / 1. Paratype: MLP 5486 / 2 (allotype Ƥ). Reference. Achinelly & Camino (2008 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD799577695FC29FDFFFACF.taxon	materials_examined	Type host. Oxymycterus misionalis Sanborn (Mammalia: Muridae). Site of infection. Abdominal cavity. Type locality. Argentina, Misiones Province, Cainguás and Libertador General San Martín, Valle del Cuña Pirú (27 º 05 ʹ 15 " S, 54 º 57 ʹ 0 9 ʹ W). Holotype: 3 MLP 4842. Paratypes: MLP 4843 (allotype Ƥ), MLP 4844 (10 specimens). Remarks. 4 paratypes in the Muséum national d’Histoire naturelle, Paris, France. Reference. Notarnicola et al. (2002).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD799577695FAB3FDFFF945.taxon	materials_examined	Type host. Oligoryzomys delticola (Thomas) (Mammalia: Muridae). Site of infection. Abdominal cavity. Type locality. Argentina, Buenos Aires Province, Hudson (34 º 45 ʹS, 58 º 06 ʹW). Paratypes: MLP 4610 (9 Ƥ, 13).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD799577695FAB3FDFFF945.taxon	discussion	Remarks. Holotype, allotype, and 2 paratypes deposited in the Muséum national d’Histoire naturelle, Paris, France. Reference. Notarnicola et al. (2000).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD799577695F8C6FD33F81A.taxon	materials_examined	Type host. Oxymycterus nasutus Waterhouse (Mammalia: Cricetidae). Site of infection. Abdominal cavity. Type locality. Uruguay, Rocha Department, Castillos (34 º 10 ʹ 12 ʹ S, 53 º 49 ʹ 47 ʹ W). Holotype: 3 MLP 5867. Paratypes: MLP 5868 (allotype Ƥ), MLP 5869 (3 ƤƤ, 13). Reference. Notarnicola & Navone (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD699567695FF53FDBEFE6D.taxon	materials_examined	Type host. Nectomys squamipes (Brants) (Mammalia: Muridae). Site of infection. Abdominal cavity. Type locality. Argentina, Misiones Province, Cainguas, Arroyo Cuñá Pirú (27 º 05 ʹ 15 ʹ S, 54 º 57 ʹ 0 9 ʹ W). Holotype: 3 MLP 5392. Paratypes: MLP 5393 (allotype Ƥ), MLP 5394 (333, 4 ƤƤ). Reference. Notarnicola (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD699567695FE1EFD33FD22.taxon	materials_examined	Type host. Oligoryzomys nigripes Olfers (Mammalia: Muridae). Site of infection. Mainly abdominal cavity. Type locality. Argentina, Misiones Province, Cainguas, Arroyo Cuñá Pirú (27 º 05 ʹ 15 ʹ S, 54 º 57 ʹ 0 9 ʹ W). Holotype: 3 MLP 5017. Paratypes: MLP 5018 (allotype Ƥ), MLP 5019 (13, 3 ƤƤ). Reference. Notarnicola & Navone (2002).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD699567695FCD9FDFFFBBF.taxon	materials_examined	Type host. Oxymycterus rufus (Fischer) (Mammalia: Muridae). Site of infection. Thoracic and abdominal cavity. Type locality. Argentina, Buenos Aires Province, Punta Lara (34 º 47 ʹS, 58 º 01 ʹW). Paratypes: MLP 4611 (16 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD699567695FCD9FDFFFBBF.taxon	discussion	Remarks. Holotype, allotype, and 2 paratypes deposited in the Muséum national d’Histoire naturelle, Paris, France. Reference. Notarnicola et al. (2000).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD699567695FB63FD33FA51.taxon	materials_examined	Type host. Phyllotis xanthopygus Waterhouse (Mammalia: Cricetidae). Site of infection. Pleural and abdominal cavities. Type locality. Argentina, Neuquén Province, Las Coloradas (39 ° 33 ʹ 18 ʺS; 70 ° 34 ʹ 47 ʺW). Holotype: 3 MLP 6067. Paratypes: MLP 6068 (allotype Ƥ), MLP 6069 (from abdominal cavity), MLP 6070 (from thoracic cavity). Reference. Notarnicola & Navone (2010).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD599557695FED3FE65FE14.taxon	materials_examined	Type host. Phyllotis griseoflavus griseoflavus (Waterhouse) (Mammalia: Cricetidae). Site of infection. Large intestine, caeca. Type locality. Argentina, Mendoza Province, Lujan de Cuyo, Vistalba (33 ° 1 ' S, 68 ° 53 ' W). Syntypes: MLP 47 / 1, MLP 47 / 2, MLP 48, MLP 49, MLP 50 / 1, MLP 50 / 2, MLP 54. Reference. Sutton (1979).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD599557695FD42FDE9FC79.taxon	materials_examined	Type host. Akodon azarae bibianae (Mammalia: Muridae). Site of infection. Cecum. Type locality. Argentina, Formosa Province, Pirané, El Colorado (26 º 19 ʹ 45 ʹ S, 59 º 06 ʹ 43 ʹ W). Holotype: 3 MLP 5625. Paratypes: MLP 5626 (allotype Ƥ), MLP 5627 (533, 5 ƤƤ), MLP 5628 (533, 5 ƤƤ), MLP 5629 (533, 5 ƤƤ). Reference. Robles & Navone (2007 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD599557695FC1DFD14FB2C.taxon	materials_examined	Type host. Calomys laucha Fischer (Mammalia: Cricetidae). Site of infection. Cecum. Type locality. Argentina, Buenos Aires Province, Carlos Casares (35 º 37 ʹS, 61 º 22 ʹW). Holotype: 3 MLP 6200. Paratypes: MLP 6201 (allotype Ƥ), MLP 6202 (40 specimens). Reference. Rojas Herrera et al. (2011).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD599557695FACAFDEBFA16.taxon	materials_examined	Type host. Oligoryzomys nigripes (Olfers) (Mammalia: Cricetidae). Site of infection. Cecum. Type locality. Argentina, Misiones Province, Cainguás, Arroyo Cuña Pirú (27 ° 05 ʺS, 54 ° 56 ʹW). Holotype: 3 MLP 5653. Paratypes: MLP 5654 (allotype Ƥ), MLP 5655, MLP 5656 (14 specimens). Reference. Robles & Navone (2007 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD599557695F94DFDCFF80F.taxon	materials_examined	Type host. Dolichotis patagonum (Zimmermann) (Mammalia: Caviidae). Site of infection. Cecum. Type locality. Argentina, Mendoza Province, Cerro del Guadal (cited as Meseta del Guadal) (36 º 54 ’ S, 68 º 54 ’ W). Holotype: 3 MLP 1320 / 1. Paratype: MLP 1320 / 2 (allotype Ƥ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD599557695F94DFDCFF80F.taxon	discussion	Remarks. Other material in the Muséum national d’Histoire naturelle, Paris, France (not mentioned as paratypes in the original description). Reference. Sutton & Hugot (1987).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD499547695FCD0FD05FBE9.taxon	materials_examined	Type host. Larvae of Cyclocephala signaticollis (Burmeister) (Insecta: Scarabaeidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Lincoln (34 ° 51 ʹ 54 ʺS, 61 ° 31 ʹ 55 ʺW). Syntypes: MLP 4850. Reference. Reboredo & Camino (2000).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD499547695FB58FD05FA61.taxon	materials_examined	Type host. Larvae of Cyclocephala signaticollis (Burmeister) (Insecta: Scarabaeidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Crop fields from Norberto de la Riestra. Syntypes: MLP 4849. Reference. Reboredo & Camino (2000).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD499547695FEE6FE65FDDE.taxon	materials_examined	Type host. Calomys laucha Fischer (Mammalia: Cricetidae). Site of infection. Stomach. Type locality. Uruguay, Departamento Artigas, Bella Unión. Holotype: 3 MLP 1348 / 1. Paratypes: MLP 1348 / 2 (allotype Ƥ). Remarks. Paratype (3) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Sutton (1989).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD499547695F9ADFE7CF8BC.taxon	materials_examined	Type host. Akodon azarae azarae (Fischer) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Balcarce. Syntypes: MLP 790 C, 799 C, 860 C, 1074 C. Reference. Sutton (1984)	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD399537695FD6EFDA8FBEE.taxon	materials_examined	Type host. Zaedyus pichiy Desmarest (Mammalia; Dasypodidae). Site of infection. Caeca. Type locality. Argentina, Mendoza Province, San Carlos (34 º 16 ʹS, 68 º 8 ʹW). Holotype: 3 MLP 6135. Paratypes: MLP 6136 (allotype Ƥ), MLP 6137.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD399537695FD6EFDA8FBEE.taxon	discussion	Remarks. Other material in the Parasite Collection of the Harold W. Manter Laboratory of Parasitology of the University of Nebraska, Lincoln, Nebraska, and the National Parasite Collection, Bethesda, Maryland, USA (not mentioned as paratypes in the original description). Reference. Navone et al. (2010).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD399537695FF19FE65FE27.taxon	materials_examined	Type host. Phyllotis griseoflavus griseoflavus (Waterhouse) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Mendoza Province, Lujan de Cuyo, Vistalba (33 ° 1 ' S, 68 ° 53 ' W). Syntypes: MLP 53 / 1. Reference. Sutton (1979).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD399537695F97AFE6EF83A.taxon	materials_examined	Type host. Plegadis chihi (Vieillot) (Aves: Threskiornithidae). Site of infection. Proventriculus. Type locality. Argentina, Buenos Aires Province, Punta Blanca (34 º 56 ʹS, 57 º 41 ʹW). Holotype: 3 MLP 3778 / 5. Paratypes: MLP 3682 / 1 (433, 3 ƤƤ). Remarks. Paratypes (333, 3 ƤƤ) in The Natural History Museum, London, UK. Reference. Digiani (2000).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD399537695FA85FDC0F9C4.taxon	materials_examined	Type host. Charadrius falklandicus Latham (Aves: Charadriidae). Site of infection. Proventriculus. Type locality. Argentina, Chubut Province, Golfo San José, Playa Fracasso (42 º 25 ʹS, 64 º 07 ʹW). Holotype: 3 MLP 4614. Paratypes: MLP 4615 (allotype Ƥ), MLP 4616 (13, 1 Ƥ). Reference. Cremonte et al. (2001).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD299527695FEE6FD05FDFA.taxon	materials_examined	Type host. Larvae of Cyclocephala signaticollis Burmeister (Insecta: Scarabaeidae). Site of infection. Last part of the intestine. Type locality. Argentina, Buenos Aires Province, Pergamino (33 º 54 ʹS, 60 º 35 ʹW). Holotype: 3 MLP 5288 / 1. Paratype: MLP 5288 / 2 (allotype Ƥ). Reference. Camino & Reboredo (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD299527695FD6EFD05FC72.taxon	materials_examined	Type host. Nymphs of Neocurtilla claraziana Saussure (Insecta: Gryllotalpidae). Site of infection. Middle intestine. Type locality. Argentina, Buenos Aires Province, La Plata, Gorina. Paratype: MLP 4845 (allotype Ƥ). Reference. Camino & Reboredo (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD299527695FBF6FD36FACA.taxon	materials_examined	Type host. Adults of Neocurtilla claraziana Saussure (Insecta: Gryllotalpidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, La Plata, Gorina. Holotype: MLP 4858 / 1. Paratype: MLP 4858 / 2 (allotype). Reference. Camino & Maiztegui (2002 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD299527695FA7EFD35F942.taxon	materials_examined	Type host. Larvae of Cyclocephala modesta (Insecta: Scarabaeidae). Site of infection. Intestine. Type locality. Argentina, Salta Province, Lesser. Syntypes: MLP 4847. Reference. Achinelly & Camino (2008 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD299517695F84EFD17FED4.taxon	materials_examined	Type host. Odontesthes smitti (Lahille) (Pisces: Atherinopsidae). Site of infection. Skin of pectoral and anal fins, epithelium of operculum and gill mucosa. Type locality. Argentina, Mar Argentino, Golfo Nuevo (42 º 47 ʹS, 65 º 02 ʹW). Holotype: 3 MLP 5558. Paratypes: MLP 5559 (allotype Ƥ), MLP 5560 (233, 2 ƤƤ), MLP 5561 (13, 1 Ƥ), MLP 5562 (13, 1 Ƥ). Reference. Carballo & Navone (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD199517695FDC2FD55FCFF.taxon	materials_examined	Type host. Holochilus brasiliensis (Desmarest) (Mammalia: Cricetidae). Site of infection. Stomach. Type locality. Uruguay, Artigas Department, Calnú, Colonia España (34 ° 23 ' 60 '' S, 57 ° 10 ' W). Holotype: 3 MLP 2017 / 1. Paratypes: MLP 2017 / 2 (allotype Ƥ), MLP 2017 / 3 (13, 4 ƤƤ). Remarks. Paratypes (13, 2 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Sutton & Durette – Desset (1995).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD199517695FC9EFDA7FB8D.taxon	materials_examined	Type host. Ctenomys talarum Thomas (Mammalia: Octodontidae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, Mar de Cobo (37 º 58 ʹS, 57 º 34 ʹW). Holotype: 3 MLP 5423. Paratypes: MLP 5424 (allotype Ƥ), MLP 5425 (53, 5 Ƥ). Remarks. Paratypes (433, 5 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France. Reference. Rossin et al. (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD199517695FB37FD55F9C1.taxon	materials_examined	Type host. Lagostomus maximus (Desmarest) (Mammalia: Chinchillidae). Site of infection. Stomach, small intestine Locality: Argentina, Buenos Aires Province, Berazategui, Estación de Cría de Animales Salvajes (ECAS) (the host came from Argetina, Mendoza Province). Holotype: 3 MLP 1183 / 1. Paratypes: MLP 1183 / 2 (allotype Ƥ), MLP 1183 / 3 (233, 2 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD199517695FB37FD55F9C1.taxon	discussion	Remarks. Paratypes (13, 1 Ƥ) deposited in the Muséum national d’Histoire naturelle, Paris, France. Reference. Sutton & Durette – Desset (1987).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD199517695F92DFDD4F833.taxon	materials_examined	Type host. Ctenomys talarum Thomas (Mammalia: Octodontidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Mar de Cobo (37 º 58 ʹS, 57 º 34 ʹW). Holotype: 3 MLP 5595. Paratypes: MLP 5596 (allotype Ƥ), MLP 5597 (33, 1 Ƥ). Reference. Rossin et al. (2006 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD099507695F9AEFDEFF8DE.taxon	materials_examined	Type host. Blatta orientalis (Linnaeus) (Insecta: Blattellidae). Type locality. Argentina, Salta Province, Orán. Holotype: 3 MLP 4923. Reference. de Villalobos et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD099507695FEE6FDD5FDDE.taxon	materials_examined	Type host. Oxymycterus rufus (Fischer) (Mammalia: Cricetidae). Site of infection. Urinary bladder. Type locality. Argentina, Buenos Aires Province, Berazategui, Reserva Natural de Hudson (34 º 45 ʹS, 58 º 06 ʹW). Holotype: 3 MLP 5752. Paratypes: MLP 5753 (allotype Ƥ), MLP 5754, MLP 5755. Reference. Robles et al. (2008 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD099507695FD0AFE60FC56.taxon	materials_examined	Type host. Akodon montensis Thomas (Mammalia: Muridae). Site of infection. Caecum. Type locality. Argentina, Misiones Province, Aristóbulo del Valle, Balneario Municipal (27 ° 05 ' S- 54 ° 56 ' W). Holotype: 3 MLP 6261. Paratypes: MLP 6262 (allotype Ƥ), MLP 6263 (23, 2 Ƥ). Reference. Robles (2010).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD099507695FBD5FDA1FACF.taxon	materials_examined	Type host. Phyllotis xanthopygus Waterhouse (Mammalia: Muridae). Site of infection. Caecum. Type locality. Argentina, Buenos Aires Province, Sierra de la Ventana, Cerro Destierro (38 º 01 ʹ 25 ʹ S, 62 º 54 ʹ 39 ʹ W). Holotype: 3 MLP 5455. Paratypes: MLP 5456 (allotype Ƥ), MLP 5457 (23, 2 Ƥ), MLP 5458 (13, 1 Ƥ). Reference. Robles et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDF995F7695FF53FCD7FE89.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Mendoza Province, Chacras de Coria. Holotype: Ƥ MLP 4887.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDF995F7695FE72FDEFFD6A.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Salta Province, Tres Palmeras, Río Arias. Holotype: 3 MLP 4924. Reference. de Villalobos et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDF995F7695FD11FCD7FC74.taxon	materials_examined	Type host. unknown. Type locality. Argentina, Buenos Aires Province, Sierra de La Ventana, El Pinar, Arroyo El Loro. Holotype: MLP 3646 / 1. Paratypes: MLP 3646 / 2, MLP 3647, MLP 3648 (3 ƤƤ), MLP 3660. References. Miralles (1981), de Villalobos et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDF995F7695FBFEFD2DFAEE.taxon	materials_examined	Type host. Stagmatoptera hyaloptera (Perty) (Insecta: Mantidae). Type locality. Argentina, Salta Province, near Salta City (24 ° 47´S, 65 ° 24´W). Holotype: 3 MLP 4068. Reference. de Villalobos & Camino (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDF995F7695FA9DFC09F987.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Salta Province, Campo Quijano. Holotype: 3 MLP 3581.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDF995F7695FA9DFC09F987.taxon	discussion	Remarks. According to Schmidt-Rhaesa et al. (2008) this species shows the characters of the genus Pseudochordodes Carvalho, 1942.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDF995F7695F97BFD29F861.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Buenos Aires Province, Sierra de La Ventana. Syntypes: MLP 3142. Reference. Miralles & de Villalobos (1997).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDE995E7695FF53FD28FE89.taxon	materials_examined	Type host. Blaptica sp. (Insecta: Blaberidae). Type locality. Argentina, Misiones Province, Arroyo Cuña Pirú. Holotype: 3 MLP 3662. Reference. de Villalobos & Miralles (1997).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDE995E7695FE72FDEFFD6A.taxon	materials_examined	Type locality. Argentina, San Luis Province, Piedra Blanca stream, Carpinteria. Neotype: 3 MLP 5290 / 1. Other specimens labeled as paraneotypes MLP 5290 / 2 (233). Reference. de Villalobos et al. (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDE995E7695FCD8FDEFFC0D.taxon	materials_examined	Type host. Pterostichus diligens (Sturm) (Insecta: Carabidae). Type locality. Scotland, Crianlarich. Holotype: 3 MLP 4372. Reference. de Villalobos et al. (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDE995E7695FBFEFDEFFAEE.taxon	materials_examined	Type host. Calathus fuscipes (Goeze) (Insecta: Carabidae). Type locality. Scotland, Skerray. Holotype: 3 MLP 4371. Reference. de Villalobos et al. (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDE995E7695FA9DFC19F9CF.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Buenos Aires Province, Balneario Tornquist. Syntypes: MLP 3631 (233, 2 ƤƤ).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDE995E7695F9B3FD22F8A9.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Buenos Aires Province, Ramallo, Río de los Cueros. Holotype: 3 MLP 4550 / 1. Paratypes: MLP 4550 / 2 (13, 1 Ƥ). Reference. de Villalobos & Voglino (2000).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDD995D7695FF19FD5EFE4C.taxon	materials_examined	Type host. Rhantus limbatus (Aubé) (Insecta: Dytiscidae). Type locality. Argentina, Buenos Aires Province, Otamendi. Holotype: 3 MLP 3657 / 1. Paratypes: MLP 3657 / 2 (233, 1 Ƥ). Reference. Miralles & de Villalobos (1996 d).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDD995D7695FE38FB82FCE5.taxon	materials_examined	Type host. Man Type locality. Argentina, Santiago del Estero Province. Holotype: 3 MLP 3147.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDD995D7695FE38FB82FCE5.taxon	discussion	Remarks. G. inesae was transferred to the genus Beatogordius Heinze as B. inesae (Cavalieri, 1961) by Miralles (1984 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDD995D7695FCA6FD5EFBC6.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, San Luis Province, Piedras Blancas. Holotype: Ƥ MLP 3650. Reference. Miralles & de Villalobos (1996 d).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDD995D7695FB45FD5CFAA7.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Río Negro Province, Cinco Saltos. Holotype: Ƥ MLP 3651 / 1. Paratypes: MLP 3651 / 2 (2 ƤƤ) Reference. Miralles & de Villalobos (1996 e).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDD995D7695FA21FD5CF944.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Buenos Aires Province, Sierra de La Ventana, Río Sauce Grande. Holotype: 3 MLP 4875 / 1. Paratypes: MLP 4875 / 2. Reference. Miralles & de Villalobos (1996 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDD995D7695F8C0FD5CF819.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Buenos Aires Province, Otamendi, Arroyo Las Brusquitas. Holotype: Ƥ MLP 3623. Paratypes: MLP 3624 (3 ƤƤ) from Argentina, Buenos Aires Province, Sierra de La Ventana, Arroyo El Negro. Reference. Miralles & de Villalobos (1996 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDC995C7695FF53FD5EFE89.taxon	materials_examined	Type host. Scapteriscus sp. (Insecta: Grillotalpidae). Type locality. Argentina, San Luis Province, Merlo, Arroyo Santa Elena. Holotype: 3 MLP 4877 / 1. Paratypes: MLP 4877 / 2 (2 ƤƤ, 3 33). Reference. Miralles & de Villalobos (1996 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDC995C7695FE72FD2DFD6A.taxon	materials_examined	Type host. Stagmatoptera hyaloptera (Perty) (Insecta: Mantidae). Type locality. Argentina, Salta Province, Río Arias. Holotype: Ƥ MLP 4067. Reference. de Villalobos & Camino (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDC995C7695FD11FD57FC74.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Buenos Aires Province, Sierra de La Ventana, Arroyo El Loro. Holotype: 3 MLP 3140. Reference. Miralles & de Villalobos (1996 c)	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDC995C7695FC30FD5CFB55.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Buenos Aires Province, Sierra de La Ventana, Arroyo El Loro. Holotype: Ƥ MLP 3141 / 1. Paratype: Ƥ MLP 3141 / 2. Reference. Miralles & de Villalobos (1996 c).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDC995C7695FA93FDEFF9C9.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Catamarca Province, Los Pinos stream. Holotype: 3 MLP 5714. Reference. de Villalobos et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDC995C7695F95EFDEFF88E.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Catamarca Province, El Tala stream. Holotype: 3 MLP 5703. Paratypes: MLP 5704 (533). Reference. de Villalobos et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDB995B7695FAF1FDC6F987.taxon	materials_examined	Type host. Didelphis albiventris Lund. Site of infection. Small intestine. Type locality. Argentina, Santiago del Estero Province, Moreno (27 º 12 ʹ 30 ʹ S, 63 º 02 ʹ 30 ʹ W). Holotype: MLP 5283. Paratypes: MLP 5284.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDB995B7695FAF1FDC6F987.taxon	discussion	Remarks. Paratypes deposited in the Harold W. Manter Laboratory of Parasitology, University of Nebraska – Lincoln, Lincoln, Nebraska, USA. Reference. Campbell et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDB995B7695F976FDD7F802.taxon	materials_examined	Type host. Thylamys pallidior (Thomas) (Marsupialia, Didelphidae). Site of infection. Small intestine. Type locality. Argentina, Jujuy Province, Susques (24 º 00 ʹ 48.8 ʹ S, 66 º 30 ʹ 52.8 ʹ W). Holotype: MLP 5727. Paratypes: MLP 5728.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDB995B7695F976FDD7F802.taxon	discussion	Remarks. Paratypes deposited in the Harold W. Manter Laboratory of Parasitology, University of Nebraska – Lincoln, Lincoln, Nebraska, USA. Reference. Jimenez et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDB995B7695FF53FC6FFE89.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Catamarca Province. Holotype: Ƥ MLP 3143.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDB995B7695FE72FC6FFD6A.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, Salta Province, Campo Quijano. Holotype: Ƥ MLP 3144.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDB995B7695FCC9FD31FC3C.taxon	materials_examined	Type host. Unknown. Type locality. Argentina, San Luis Province, Merlo, Arroyo Piedra Blanca. Holotype: 3 MLP 3573. Reference. Zanca & de Villalobos (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDA995A7695F9E2FE6AF8FE.taxon	materials_examined	Type host. Fullica armillata Viellot (Aves, Rallidae). Site of infection. Duodenum. Type locality. Argentina, Río Negro Province, Lago Pellegrini. Holotype: MLP 3153 / 1. Paratype: MLP 3153 / 2. Reference. Tanzola (1992).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDA995A7695FBD5FD19FAAC.taxon	materials_examined	Type host. Myliobatis goodei Garman (Pisces, Myliobatidae). Site of infection. Spiral intestine. Type locality. Argentina, Rio Negro Province, Golfo San Matías, San Antonio Oeste (40 ° 44 ʹS, 64 ° 56 ʹW). Holotype: MLP 3958.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDA995A7695FBD5FD19FAAC.taxon	discussion	Remarks. Paratypes deposited in the Institute of Parasitology, České Budĕjovice Czech Republic and the United States National Parasite Collection in Beltsville, Maryland, USA. Reference. Ivanov & Campbell (1998 b)	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDA995A7695FD6EFE60FC56.taxon	materials_examined	Type host. Mustelus schmitti Springer (Pisces, Triakidae). Site of infection. Spiral intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 00 ʹS, 57 º 33 ʹW). Holotype: MLP 3893. Paratypes: MLP 3894 (4 specimens). Remarks. Paratype in the U. S. National Parasite Collection. Reference. Ivanov (1997).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFDA995A7695FF19FE65FE27.taxon	materials_examined	Type host. Myocastor coypus (Molina) (cited as M. c. bonariensis Commerson) (Mammalia: Myocastoridae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Magdalena. Holotype: MLP 5978. Paratypes: MLP 5979 (2 specimens). Reference. Sutton (1973).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD999597695FEE6FD07FDB2.taxon	materials_examined	Type host. Rioraja castelnaui (Ribeiro) (Pisces: Rajidae). Site of infection. Spiral intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 00 ʹS, 57 º 33 ʹW). Holotype: MLP 4025. Paratype: MLP 4026.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD999597695FEE6FD07FDB2.taxon	discussion	Remarks. Paratypes (5) US National Parasite Collection; paratypes (2) deposited in the British Museum (Natural History) Collections of The Natural History Museum, London, UK. Reference. Ivanov & Campbell (1998 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD999597695FCF3FE6BFBA1.taxon	materials_examined	Type host. Galeorhinus galeus (Linnaeus) (Pisces, Triakidae). Site of infection. Spiral intestine. Type locality. Argentina, Chubut Province, Puerto Madryn. Holotype: MLP 4942. Paratype: MLP 4943.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD999597695FCF3FE6BFBA1.taxon	discussion	Remarks. Paratype deposited in the Muséum national d’Histoire naturelle, Paris, France. Reference. Suriano (2002).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD999597695FAAAFD2BF96A.taxon	materials_examined	Type host. Mugil platanus Günther (Pisces: Mugilidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, Bahía de Samborombón, between Punta Piedras (32 º 57 ʹS, 57 º 08 ʹW) and Punta Rasa (36 º 18 ʹS, 56 º 48 ʹW). Holotype: MLP 5933. Paratype: MLP 5934. Reference. Marcotegui & Martorelli (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD999587695F840FD99FEF7.taxon	materials_examined	Type host. Acanthistius brasiliensis (Valenciennes) (Pisces: Serranidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata (38 ºS, 57 ºW). Holotype: MLP 6425 (cited as MLP P 5). Reference. Suriano (1975 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD899587695FE3EFDF7FC92.taxon	materials_examined	Type host. Percichthys trucha (Cuvier & Valenciennes) (Pisces: Percichthyidae). Site of infection. Ureters and renal tubules. Type locality. Argentina, Río Negro Province, Lago Escondido (41 ° 05 ʹS; 71 ° 35 ʹW). Paratypes: MLP 5097 (3 specimens); MLP 5098 (3 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFD899587695FE3EFDF7FC92.taxon	discussion	Remarks. Holotype and 5 paratypes deposited in the Colección Nacional de Parasitología del Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina; 17 paratypes deposited in the Colección Parasitológica de la Universidad Nacional del Comahue, (Bariloche, Argentina) and two paratypes deposited in the Helminthological Collection, Institute of Parasitology, České Budĕjovice, Czech Republic. Reference. Viozzi & Brugni (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE799677695FF19FD29FE27.taxon	materials_examined	Type host. Parapimelodus valenciennis (Lütken) (Pisces: Pimelodidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, Río Salado (35 ° 44 ' 58.77 " S, 57 ° 25 ' 12.83 " W). Holotype: MLP 6302. Paratype: MLP 6303. Reference. Marcotegui & Martorelli (2011).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE799677695FDA1FDF7FC0F.taxon	materials_examined	Type host. Percichthys trucha (Cuvier & Valenciennes) (Pisces: Percichthyidae). Site of infection. Gills. Type locality. Argentina, Río Negro Province, Lago Moreno (41 º 04 ʹS, 71 º 33 ʹW). Paratypes: MLP 5296, MLP 5297, MLP 5298, MLP 5299, MLP 5300 (6 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE799677695FDA1FDF7FC0F.taxon	discussion	Remarks. Holotype and 6 paratypes deposited in the Colección Nacional de Parasitología del Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina; 9 paratypes deposited in the Colección Parasitológica de la Universidad Nacional del Comahue (Bariloche, Argentina) and 6 paratypes deposited in the United States National Parasite Collection, Beltsville, Maryland. Reference. Viozzi & Brugni (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE799667695F8E5FD0DFF3F.taxon	materials_examined	Type host. Cynoscion guatucupa Cuvier (Pisces: Sciaenidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata (8 º 08 ʹS, 57 º 32 ʹW). Holotype: MLP 5939. Paratypes: MLP 5940.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE799667695F8E5FD0DFF3F.taxon	discussion	Remarks. Paratypes deposited in the Helminthological Collection of Oswaldo Cruz Institute, Brazil. Reference. Portes Santos & Timi (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE699667695F9E9FD19F8F7.taxon	materials_examined	Type host. Callorhynchus callorhynchus (Linnaeus) (Pisces: Callorhynchidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata (38 ºS, 57 ºW). Holotype: MLP 6428 / 1. Paratypes: MLP 6428 / 2 (cited as MLP P 12). Reference. Suriano & Incorvaia (1982).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE699667695FEA9FD06FDB7.taxon	materials_examined	Type host. Micromesistius australis Norman (Pisces: Gadidae). Site of infection. Gills. Type locality. Argentina, continental shelf (47 º 52 ʹ 0 2 ʹ – 50 º 38 ʹ 0 6 ʹ S; 61 º 20 ʹ 0 5 ʹ – 61 º 44 ʹ 0 7 ʹ W). Holotype: MLP 6426 (cited as MLP P 11). Reference. Suriano & Martorelli (1984).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE699667695FD61FC28FC37.taxon	materials_examined	Type host. Macrourus whitsoni Regan (Macrouridae). Site of infection. Gills. Type locality. Argentina, continental shelf (36 º 47 ʹ 0 2 ʹ – 47 º 15 ʹ 0 7 ʹ S; 53 º 56 ʹ 0 6 ʹ – 61 ºW). Holotype: MLP 6427 (cited as MLP P 10).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE699667695FD61FC28FC37.taxon	discussion	Remarks. D. whitsonii was transferred to the genus Macruricotyle Mamaev & Ljadov, 1975 as M. whitsonii (Suriano & Martorelli, 1984) by Rubec and Dronen (1994).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE699667695FBAEFDF7FAB2.taxon	materials_examined	Type host. Prionotus nudigula (Ginsburg) (Pisces: Triglidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata (38 ºS, 57 ºW). Holotype: MLP 6433 (cited as MLP P 1). Reference. Euzet & Suriano (1975).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE599657695F983FD80F8DD.taxon	materials_examined	Type host. Engraulis anchoita Hubbs & Marini (Pisces: Engraulidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast (36 º 52 ʹS, 55 º 28 ʹW). Holotype: MLP 4346. Paratype: MLP 4347. Reference. Timi et al (1999).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE599657695FEE6FD67FDB2.taxon	materials_examined	Type host. Micropogon opercularis (Quoy & Gaimard) (Pisces: Sciaenidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata. Holotype: MLP 6429 (cited as MLP P 2).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE599657695FEE6FD67FDB2.taxon	discussion	Remarks. Kohn et al. (1989) consider that the types of N. argentinensis must be reviewed considering that the only differential character " absence of vagina " is not a sufficient character to separate genera.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE599657695FBBEFD9EFA82.taxon	materials_examined	Type host. Umbrina canosai Berg (Pisces: Sciaenidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata. Holotype: MLP 6431 (cited as MLP P 4). Reference. Suriano (1975 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE499647695FF19FCD9FDFF.taxon	materials_examined	Type host. Stromateus brasiliensis Fowler (Pisces: Stromateidae). Site of infection. Gills. Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata. Holotype: MLP 6432 (cited as MLP P 6).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE499647695FF19FCD9FDFF.taxon	discussion	Remarks. This genus was synonymized with Neogrubea Dillon & Hargis, 1968 by Gibson and Meneses (1990) and A. asymmetria was synonymized with Neogrubea soni Evdokimova, 1969.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE499647695FAC2FDE0FA46.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, near Azul City, artificial pond (36 ° 27 ʹS, 59 ° 33 ʹW). Holotype: MLP 5642. Paratypes: MLP 5643 (7 specimens sagittally sectioned). Reference. Damborenea et al. (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE499647695F982FDB2F8FA.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Atalaya (35 º 00 ʹ 53 ʹ S, 57 º 32 ʹ 3.3 ʹ W). Holotype: MLP 5420 (whole – mounted specimen). Paratypes: one specimen MLP 5421 (in toto mounted), MLP 5340 and MLP 5341 (4 specimens sagittally cut). Reference. Brusa et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE499647695FD36FDC7FC0A.taxon	materials_examined	Type host. Congiopodus peruvianus Cuvier & Valenciennes (Pisces: Congiopodidae). Site of infection. Gills. Type locality. Argentina, Patagonian Shelf (41 - 48 ºS, 58 - 65 ºW). Holotype: MLP 6295. Paratypes: MLP 6296 (5 specimens). Reference. Cantatore et al. (2011).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE499637695F8A1FDE0FF1C.taxon	materials_examined	Type locality. Perú, Loreto, Pacaya – Samiria National Reserve, “ Cocha ” Yarina: lagoon connected with the “ caño ” Yarina (5 º 24 ʹ 42 ʹ S, 74 º 30 ʹ 23 ʹ W). Holotype: MLP 5436 (whole mounted specimen). Paratypes: MLP 5437 (2 whole – mounted specimens), MLP 5438 (4 sagitally sectioned specimens). Reference. Damborenea et al. (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE399637695FE88FDBDFE19.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Berisso, Canteras Los Talas (34 º 53 ʹS, 57 º 50 ʹW). Syntypes: MLP 4928 (7 specimens: 3 sagitally sectioned specimens, 4 whole mounted). Reference. Brusa et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE399637695FD82FDE0FCFA.taxon	materials_examined	Type locality. Perú, Loreto, Pacaya – Samiria National Reserve, Pacaya River (5 º 16 ʹ 28 ʹ S, 74 º 29 ʹ 55 ʹ W). Holotype: MLP 5431 (whole – mounted specimen). Paratypes: MLP 5432 (2 whole – mounted specimens), MLP 5433 (2 sagitally sectioned specimens), MLP 5434 (1 whole – mounted specimen). Reference. Damborenea et al. (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE399637695FCA1FDB2FBE7.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Punta Piedras, Arroyo La Matilde (35 º 21´S, 57 º 10´W). Holotype: MLP 5345 (whole mounted specimen). Reference. Brusa et al. (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE399637695FB9BFDE0FAC1.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, near Azul City, artificial pond (36 ° 27 ʹS, 59 ° 33 ʹW). Holotype: MLP 5644 (whole mounted specimen). Paratypes: MLP 5645, MLP 5646 (seven sagittally sectioned specimens). Reference. Damborenea et al. (2007).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE399637695FABAFDE0F986.taxon	materials_examined	Type locality. Perú, Loreto, Pacaya – Samiria National Reserve, “ Cocha ” Yarina, lagoon connected with the “ caño ” Yarina (5 º 24 ʹ 42 ʹ S, 74 º 30 ʹ 23 ʹ W). Holotype: MLP 5426 (whole mounted specimen). Paratypes: MLP 5427 (1 sagitally sectioned specimen), MLP 5428 (1 sagitally sectioned specimen). Reference. Damborenea et al. (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE399637695F888FDAAF819.taxon	materials_examined	Type locality. Perú, Cuzco, Camisea (11 º 51 ʹS, 72 º 56 ʹW). Holotype: MLP 6083. Reference. Negrete et al. (2010).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE299627695FC98FE7BFBE9.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Punta Indio, Punta Piedras (35 ° 21 ʹ 23.1 ” S, 57 ° 10 ʹ 22.5 ” W). Holotype: MLP 5354 (in serial sections). Paratype: MLP 5555 (2 specimens in serial sections). Reference. Brusa (2006 a)	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE299627695FB92FE60FACA.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Atalaya (35 ° 00 ʹ 53.6 ” S, 57 ° 32 ʹ 3.3 ” W). Holotype: MLP 5554. Paratypes: MLP 5333 (5 specimens in serial sections from La Matilde stream), MLP 5334 (1 specimen in serial section from Atalaya) Reference. Brusa (2006 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE299627695FEE6FDBDFD96.taxon	materials_examined	Type host. Mesodesma mactroides Deshayes (Mollusca, Mesodesmatidae). Type locality. Uruguay, Rocha Department, Playa de La Coronilla (33 ° 51 ʹS, 53 ° 30 ʹW). Site of infection. Intestine. Holotype: MLP 5563 (whole mounted specimen). Paratypes: MLP 5564 (1 whole mounted specimen and 3 specimens sagittally sectioned). Remaks. One specimen in toto and one specimen sagittally sectioned deposited in the Facultad de Ciencias, Montevideo, Uruguay. Reference. Brusa et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE299627695FA3BFE62F921.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Purta Indio, Punta Piedras (35 º 21 ʹ 23 ʹ S, 57 º 10 ʹ 22 ʹ W). Holotype: MLP 5335 (sagittally sectioned). Paratypes: MLP 5336 (2 specimens sagittally sectioned), MLP 5337 (1 specimen sagittally sectioned). Reference. Brusa (2006 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE199617695FA58FDACF939.taxon	materials_examined	Type locality. Uruguay, Canelones, Arroyo Sauce (34 º 52 ʹS, 56 º 12 ʹW). Holotype: MLP 5246 (sagittally sectioned). Paratypes: MLP 5329 (1 specimen sagittally sectioned and 2 specimens whole mounted).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE199617695FA58FDACF939.taxon	discussion	Remarks. Paratypes 1 sagittally sectioned and 1 prepared in toto stained deposited in the Museo Nacional de Ciencias Naturales de Madrid, Spain; 1 sagittally sectioned and 1 prepared in toto stained deposited in the Helminthological Collection of Facultad de Ciencias, Montevideo, Uruguay. Reference. Noreña et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE199617695FF53FDA3FE6D.taxon	materials_examined	Type host. Kingsleya ytupora Magalhaes (Crustacea, Decapoda). Site. Surface of body. Type locality. Brazil, Amapá, Río Araguari, Pedra do Mauricio. Paratypes: MLP 2226 (4 specimens). Reference. Damborenea (1994).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE199617695FE1EFD0EFD06.taxon	materials_examined	Type host. Pomella megastoma (Sowerby) (Mollusca, Ampullariidae). Site. Mantle cavity. Type locality. Argentina, Misiones Province, Arroyo Yabotí – Miní (26 º 57´39.87 ´´ S, 53 º 49´23.07 ´´ W). Holotype: MLP 5718 (specimen sagittally sectioned). Paratypes: MLP 5719 (2 specimens whole mounted); MLP. 5720 (1 dissected cirrus); MLP 5721 (2 specimens: 1 sagittally sectioned, 1 transversely sectioned). Reference. Damborenea & Brusa (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE199617695FC42FD0EFB56.taxon	materials_examined	Type host. Villopotamon thaii Dang & Ho (Crustacea, Potamidae). Site. External surface of the carapace. Type locality. Vietnam, Quangnam Province, Stream at Bana Nature Reserve. Paratypes: MLP 5744 (2 sagittaly sectioned, 1 frontally sectioned, 1 cirrus in polyvinyl – lactophenol).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE199617695FC42FD0EFB56.taxon	discussion	Remarks. Holotype (wholemount specimen) and one paratype (specimen transversally sectioned) deposited in the Muséum national d’Histoire naturelle, Paris, France. Reference. Damborenea & Brusa (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE099607695FF53FDCDFE6D.taxon	materials_examined	Type host. Conger orbignyanus Valenciennes (Pisces: Congridae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 08 ʹS, 57 º 32 ʹW). Holotype: MLP 5593. Paratypes: MLP 5594 (3 specimens). Reference. Etchegoin et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE099607695FDA1FDA2FBBB.taxon	materials_examined	Type host. Galaxias maculatus (Jenyns) (Pisces: Galaxiidae). Site of infection. Intestine. Type locality. Argentina, Río Negro Province, Lago Moreno (41 º 06 ʹS, 71 º 32 ʹW). Paratypes: MLP 5301, MLP 5302 (2 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE099607695FDA1FDA2FBBB.taxon	discussion	Remarks. Holotype and two paratypes deposited in the Colección Nacional de Parasitología in the Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina; sixteen paratypes and two sets of serial sections deposited in the Colección Parasitológica del Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, San Carlos de Bariloche, Argentina; two paratypes deposited in the British Museum (Natural History) Collections of The Natural History Museum, London, UK. Curran et al. (2006) considered this a second species in the yet unnamed Creptotrema – like genus, and Viozzi et al. (2009) maintain it in the original genus until new taxonomic and molecular comparisons are done.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE099607695FB2DFD98FA3C.taxon	materials_examined	Type host. Luciopimelodus pati (Valenciennes) (Pisces: Pimelodidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Magdalena, Atalaya. Holotype: MLP 494 / 1. Paratype: MLP 494 / 2 (published as MLP 232 C) Reference. Lunaschi (1985).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE099607695F972FDB0F84E.taxon	materials_examined	Type host. Gymnogeophagus australis (Eigenmann) (Pisces: Cichlidae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, Los Talas. Holotype: MLP 1318. Paratypes: MLP 1318 (2 specimens). Reference. Martorelli (1986 a).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEF996F7695F983FD98F8DD.taxon	materials_examined	Type host. Pimelodella gracilis (Valenciennes) (Pisces: Pimelodidae). Site of infection. Intestine. Type locality. Argentina, Entre Ríos Province, Arroyo Brazo Chico. Syntypes: MLP 1289 C – MLP 1306 C (11 specimens). Reference. Lunaschi (1989).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEF996F7695FF19FD5EFDFF.taxon	materials_examined	Type host. Percichthys trucha (Cuvier & Valenciennes) (Pisces: Percichthyidae). Site of infection. Posterior part of intestine. Type locality. Argentina, Province of Chubut, Lago Epuyén (42 ° 11 ʹS, 71 ° 31 ʹW). Paratypes: MLP 5101.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEF996F7695FF19FD5EFDFF.taxon	discussion	Remarks. Holotype and 2 paratype deposited in the Colección Nacional de Parasitología in the Museo Argentino de Ciencias Naturales B. Rivadavia, Buenos Aires, Argentina. Reference. Ostrowski de Núñez et al. (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEF996F7695FD36FD9BFC0A.taxon	materials_examined	Type host. Salminus maxillosus Valenciennes (Pisces: Characidae). Site of infection. Intestine. Type locality. Argentina, Corrientes Province, Paraná River (27 º 24 ʹ 12 ʺS, 58 º 44 ʹ 21 ʺW). Holotype: MLP 5093. Reference. Lunaschi (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEF996F7695FBBEFD9BFA82.taxon	materials_examined	Type host. Acestrorhynchus pantaneiro Menezes. Site of infection. Pyloric caeca. Type locality. Argentina, Corrientes Province, near Santa Ana (27 º 24 ʹ 27 ʹ S, 58 º 42 ʹ 32 ʹ W). Holotype: MLP 5094 / 1. Paratypes: MLP 5094 / 2. Reference. Lunaschi (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEE996E7695FC16FE65FB51.taxon	materials_examined	Type host. Cavia aperea Erxleben (cited as C. a. pamparum Thomas) (Mammalia: Caviidae). Site of infection. Caeca. Type locality. Argentina, Entre Ríos Province, Concepción del Ururguay. Holotype: MLP 40 / 1. Paratypes: MLP 40 / 2 (cited as MLP 40 D) (7 specimens). Reference. Sutton (1975).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEE996E7695FA45FD98F982.taxon	materials_examined	Type host. Cichlasoma facetum (Jenyns) (Pisces: Cichlidae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, Laguna de Chascomús (35 ° 36´S, 58 ° 02´W). Holotype: MLP 392 / 1. Paratypes: MLP 392 / 2, MLP 399 / 1. Reference. Lunaschi (1988).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEE996E7695F979FD60F81F.taxon	materials_examined	Type host. Pimelodus clarias maculatus (Lacépède) (Pisces: Pimelodidae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, Ensenada, Arroyo Miguelin. Holotype: MLP 741 / 1. Paratypes: MLP 741 / 2.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEE996E7695F979FD60F81F.taxon	discussion	Remark. Thometrema rioplatense was synonymised with T. overstreeti (Brooks, Mayes & Thorson, 1979) by Kohn et al. (1990).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFED996D7695FF19FD9BFE21.taxon	materials_examined	Type host. Astyanax fasciatus (Cuvier) (Pisces: Characidae). Site of infection. Stomach. Type locality. Argentina, Buenos Aires Province, Ensenada, Arroyo Doña Flora. Holotype: MLP 635 / 1. Paratypes: MLP 634, MLP 635 / 2. Reference. Lunaschi (1990).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFED996D7695FA3AFDE2F906.taxon	materials_examined	Type host. Podiceps major (Boddaert) (Aves: Podicepedidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Chascomús, Laguna Lacombe (35 ° 49 ʹ S; 57 ° 49 ʹ W). Holotype: MLP 5309. Paratypes: MLP 5310, MLP 5311. Reference. Lunaschi & Drago (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFED996D7695FD6DFE65FC7C.taxon	materials_examined	Type host. Oxymycterus rufus (Fischer) (Mammalia: Cricetidae). Site of infection. Intestine, bile ducts. Type locality. Argentina, Buenos Aires Province, Campana, INTA. Syntypes: MLP 835 C. Reference. Sutton (1983).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFED996C7695F8A1FDE2FF1C.taxon	materials_examined	Type host. Mycteria americana Linnaeus (Aves: Ciconiidae). Site of infection. Small intestine. Type locality. Argentina, Formosa Province, Clorinda (25 ° 17´S, 57 ° 43´W). Holotype: MLP 5741. Paratypes: MLP 5742. Reference. Drago & Lunaschi (2008).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEC996C7695FE12FD8CFD2E.taxon	materials_examined	Type host. Pitangus sulphuratus bolivianus (Lafresnaye) (Aves: Tyrannidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Berisso, Los Talas. Holotype: MLP 1317 / 1. Paratypes: MLP 1317 / 2 (10 specimens). Reference. Martorelli (1985).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEC996C7695FC9AFDEEFBA6.taxon	materials_examined	Type host. Chloephaga picta leucoptera (Gmelin) (Aves: Anatidae). Site of infection. Intestine. Type locality. Argentina, Islas Malvinas. Holotype: MLP 582 / 1. Paratypes: MLP 582 / 2. Reference. Sutton & Lunaschi (1980).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEC996C7695FB65FDEEFA64.taxon	materials_examined	Type host. Scapteromys aquaticus Thomas (Mammalia: Cricetidae). Site of infection. Small intestine and caeca. Type locality. Argentina, Buenos Aires Province, Berisso, Balneario Bagliardi. Holotype: MLP 2194. Paratypes: MLP 2187, MLP 2213, MLP 2220, MLP 2230, MLP 2232 (20 specimens). Reference. Sutton & Lunaschi (1994).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEC996C7695F9EDFDFBF8FC.taxon	materials_examined	Type host. Larus dominicanus Lichtenstein (Aves: Laridae). Site of infection. Intestine. Type locality. Argentina, Chubut Province, Puerto Madryn (42 º 47 ’ S, 65 º 02 ’ W). Holotype: MLP 5233. Paratypes: MLP 5234 (7 specimens). Reference. Diaz & Cremonte (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEC996B7695F875FCBBFE6C.taxon	materials_examined	Type host. Scapteromys acuaticus Thomas (cited as S. tumidus acuaticus Thomas) (Mammalia: Cricetidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Campana, INTA. Syntypes: MLP 828 (7 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEC996B7695F875FCBBFE6C.taxon	discussion	Remarks. This species was re – described as Echinoparyphium scapteromae (Sutton, 1983) by Sutton and Lunaschi (1994).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEB996B7695FC06FD13FB5A.taxon	materials_examined	Type host. Podiceps major (Boddaert) (Aves: Podicepedidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Chascomús, Laguna Lacombe (35 ° 49 ˏS; 57 ° 49 ˏW). Holotype: MLP 6061. Paratypes: MLP 6062 (3 specimens). Reference. Lunaschi & Drago (2010 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEB996B7695FAFBFDBAF9C5.taxon	materials_examined	Type host. Podiceps major (Boddaert) (Aves: Podicepedidae). Site of infection. Intestine. Type locality. Argentina, Río Negro Province, Cinco Saltos, Lago Pelegrini. Holotype: MLP 656 / 1. Paratypes: MLP 644, M 656 / 2. Reference. Sutton et al. (1982).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEB996B7695F9B3FDB1F867.taxon	materials_examined	Type host. Podiceps major (Boddaert) (Aves: Podicepedidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Laguna de Mar Chiquita. Holotype: MLP 3902. Paratypes: MLP 3903. Reference. Etchegoin & Martorelli (1997 a). Family Faustulidae Poche, 1926	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEA996A7695FF53FD98FE6D.taxon	materials_examined	Type host. Astyanax fasciatus (Cuvier) (Pisces: Characidae). Site of infection. Rectum. Type locality. Argentina, Buenos Aires Province, Berisso, Río de la Plata, Balneario Bagliardi. Syntypes: MLP 2200 (3 specimens), MLP 2202 (5 specimes). Reference. Lunaschi (1998).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEA996A7695FE1EFD9BFD22.taxon	materials_examined	Type host. Astyanax eigenmanniorum (Cope) (Pisces: Characidae). Site of infection. Rectum. Type locality. Argentina, Misiones Province, Aristóbulo del Valle, Arroyo Cuña Pirú. Syntypes: MLP 3001 (8 specimens). Reference. Lunaschi (2001).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEA996A7695FA79FD80F91F.taxon	materials_examined	Type host. Larus dominicanus Lichtenstein (Aves: Laridae). Site of infection. Intestine. Type locality. Argentina, Chubut Province, Península Valdés, Playa Fracasso (42 º 25 ʹS, 64 º 07 ʹW). Holotype: MLP 4791. Paratypes: MLP 4792 (4 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEA996A7695FA79FD80F91F.taxon	discussion	Remarks. Paratype and voucher specimen (stained whole-mounts of natural adult and metacercaria, respectively) in The Natural History Museum, London, United Kingdom. Reference. Cremonte (2001).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEA996A7695FC63FD06FB35.taxon	materials_examined	Type host. Paralichthys brasiliensis (Ranzani) (Pisces: Paralichthyidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Albúfera de Mar Chiquita. Holotype: MLP 6424 (cited as MLP P 12).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFEA996A7695FC63FD06FB35.taxon	discussion	Remarks. This species was transferred to the genus Bacciger Nicoll, 1924 as B. microacetabularis (Suriano & Martorelli, 1983) by Alarcos et al. (2008). Reference. Suriano & Martorelli (1983).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE999697695FEE6FD98FDFA.taxon	materials_examined	Type host. Curimatorbis platanus (Günter) (Pisces: Curimatidae). Site of infection. Pyloric caeca. Type locality. Argentina, Buenos Aires Province, Ensenada, Boca Cerrada. Holotype: MLP 580 / 3. Paratypes: MLP 580 / 4 (2 specimens). Reference. Lunaschi (1984).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE999697695FDA1FD98FC9C.taxon	materials_examined	Type host. Cichlasoma facetum (Jenyns) (Pisces: Cichlidae). Site of infection. Stomach, intestine. Type locality. Argentina, Buenos Aires Province, Berisso, Los Talas. Holotype: MLP 289 / 1. Paratypes: MLP 261 (5 specimens); MLP 288 / 1 (2 specimens); MLP 288 / 2 (2 specimens); MLP 289 / 2 (1 specimen), MLP 289 / 3 (1 specimen); MLP 345 (2 specimens). Reference. Lunaschi (1984).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE999697695FC08FCCBFAE9.taxon	materials_examined	Type host. Curimatorbis platanus (Günter) (Pisces: Curimatidae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Ensenada, Boca Cerrada. Holotype: MLP 580 / 1. Paratypes: MLP 580 / 2 (2 specimens). Remarks. This species was transferred by Overstreet & Curran (2005) to the genus Chalcinotrema as Chalci- notrema platense (Lunaschi, 1984).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE999697695FA25FCDCF8B4.taxon	materials_examined	Type host. Myotis levis (Geoffroy) (Mammalia: Molossidae). Site of infection. Small intestine. Type locality. Argentina, Buenos Aires Province, Zárate, Isla Talavera. Holotype: MLP 4864 / 1. Paratypes: MLP 4859 / 2, MLP 4860 – MLP 4863 / 1, MLP 4864 / 2, MLP 4931 – MLP 4935.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE999697695FA25FCDCF8B4.taxon	discussion	Remarks. Lunaschi (2002) originally described this species as Suttonia talaveraensis. However, the genus is preoccupied by Suttonia Smith, 1953 (Pisces, Serranidae), so it was replaced by Gymnoacetabulum Lunaschi & Drago, 2007.	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE899687695FEE6FD29FDB2.taxon	materials_examined	Type host. Larus atlanticus Orlog (Aves: Laridae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Laguna de Mar Chiquita (37 º 46 ʹS, 57 º 27 ʹW). Holotype: MLP 3661 / 1. Paratypes: MLP 3661 / 2 (cited as MLP 3661 / A) (4 specimens), MLP 3661 / 3 (cited as MLP 3661 / B) (1 specimen).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE899687695FEE6FD29FDB2.taxon	discussion	Remarks. Metacercariae designated as paratypes in US National Parasite Collection. Reference. Etchegoin & Martorelli (1997 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE899687695FD69FDFBFC77.taxon	materials_examined	Type host. Larus dominicanus Lichtenstein (Aves: Laridae). Site of infection. Small intestine. Type locality. Argentina, Chubut Province, Puerto Madryn coast (42 º 46 ’ S, 65 º 02 ’ W). Holotype: MLP 6087. Paratypes: MLP 6088. Reference. Díaz & Cremonte (2010).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE899687695FC21FDCDFB3F.taxon	materials_examined	Type host. Larus novaehollandiae scopulinus (Forster) (Aves: Laridae). Site of infection. Intestine. Type locality. New Zealand, South Island, Otago Harbor (45 º 47 ʹS, 170 º 42 ʹE). Holotype: MLP 5279. Paratypes: MLP 5280 / 1 (2 specimens), MLP 5280 / 2 (5 specimens). Reference. Martorelli et al. (2004).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE899687695FAD9FD3EF9BF.taxon	materials_examined	Type host. Larus dominicanus Lichtenstein (Aves: Laridae). Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Balneario Orense (38 ° 42 ʹS, 59 º 47 ʹW). Holotype: MLP 3955. Paratypes: MLP 3956 (7 specimens). Remarks. Paratype in the Helminthological Collection of the Institute of Parasitology, České Budĕjovice, Czech Republic. Reference. Cremonte & Martorelli (1998).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFE899687695F926FDB2F81E.taxon	materials_examined	Type locality. Argentina, Buenos Aires Province, Mar Chiquita. Syntypes: MLP 1319. Reference. Martorelli (1986 b).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF799777695FCF3FDC3FB15.taxon	materials_examined	Type host. Gallus gallus domesticus Linnaeus (experimental) (Aves: Phasianidae). Site of infection. Distal region of caeca. Type locality. Argentina, Neuquén Province, Lago Lacar (40 º 10 ʹS, 71 º 33 ʹW). Paratypes: MLP 4925, MLP 4926 (4 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF799777695FCF3FDC3FB15.taxon	discussion	Remarks. Holotype, 6 paratype and a slide of rediae deposited in the Colección Nacional de Parasitología (MACN-Pa) in the Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina. Paratypes (28) and slides of redia deposited in the Colección Parasitológica del Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, San Carlos de Bariloche, Argentina. Paratypes (6) and a slide of rediae deposited in the Museum of New Zealand, Te Papa Tongarewa, New Zealand. Paratypes (8) and a slide with rediae, deposited in the BMNH Collection of The Natural History Museum, London, UK. Reference. Flores & Brugni (2003).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF799777695FA96FDC3F8D6.taxon	materials_examined	Type locality. Argentina, Rio Negro Province, Lago Nahuel Huapí (40 º 48 ’ S, 71 º 39 ’ W). Paratypes: MLP 5447, MLP 5448 (4 specimens from G. g. domesticus); MLP 5446 (4 specimens from Anas sp); MLP 5445 (1 natural specimen from A. platyrhynchos).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF799777695FA96FDC3F8D6.taxon	discussion	Remarks. Holotype in the Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina, paratypes in Museo Argentino de Ciencias Naturales Bernardino Rivadavia (9 specimens), in the Colección Parasitológica del Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, San Carlos de Bariloche, Argentina (26 specimens) and in the British Museum (Natural History) Collection at the Natural History Museum, London, UK (6 specimens). Reference. Flores & Brugni (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF799777695FEE6FDD3FDB2.taxon	materials_examined	Type host. Odontesthes smitti (Lahille) (Pisces: Atherinopsidae). Site of infection. Stomach, intestine. Type locality. Argentina, Chubut Province, Southwestern Atlantic Ocean, Golfo de San José (42 º 25 ’ S, 64 º 07 ’ W). Holotype: MLP 5881. Paratypes: MLP 5882 (2 specimens), MLP 5988 (4 specimens), MLP 5989 (3 specimens), MLP 5990 (2 specimens), MLP 5991 (1 specimen). Reference. Carballo et al. (2011).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF699767695FF19FDCBFD94.taxon	materials_examined	Type host. Anas sp. and Gallus gallus domesticus Linnaeus (both experimental). Site of infection. Distal region of caeca. Type locality. Argentina, Rio Negro Province, Fantasma Pond (41 º 03 ʹS, 71 º 23 ʹW). Paratypes: MLP 5401 (3 specimens), MLP 5402 (rediae), MLP 5403 (cercariae).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF699767695FF19FDCBFD94.taxon	discussion	Remarks. Holotype and paratypes (3) deposited in the Colección Nacional de Parasitología in the Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina. Two paratypes deposited in the Collection of the Natural History Museum, London, UK. Six paratypes deposited in the Colección Parasitológica del Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, San Carlos de Bariloche, Argentina. Reference. Flores & Brugni (2005).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF699767695FB21FD8CFA3F.taxon	materials_examined	Type host. Cynoscion striatus (Cuvier) Jordan & Evermann, 1889 (Pisces: Sciaenidae) Site of infection. Intestine. Type locality. Argentina, Buenos Aires Province, Mar del Plata. Holotype: MLP 3129 / 1. Paratypes: MLP 3129 / 2 (3 specimens). Reference. Martorelli (1992).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF699767695F976FDE2F84A.taxon	materials_examined	Type host. Waglerophis merremi (Wagler) (Reptilia: Colubridae). Site of infection. Intestine. Type locality. Argentina, Misiones Province, Aristóbulo del Valle. Holotype: MLP 4590 / 1. Paratypes: MLP 4590 / 2 (15 specimens). Reference. Lunaschi & Drago (2001).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF599757695FEE6FDF4FDFA.taxon	materials_examined	Type host. Percophis brasiliensis Quoy & Gaimard (Pisces: Percophidae). Site of infection. Blood vessels of liver and gills. Type locality. Argentina, Buenos Aires Province, Mar del Plata (38 º 08 ʹS, 57 º 32 ʹW). Holotype: MLP 5543: Paratypes: MLP 5544 (3 specimens). Reference. Braicovich et al. (2006).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF599757695FB79FDCDFA24.taxon	materials_examined	Type host. Gymnocharacinus bergii Steindachner (Pisces: Characidae). Site of infection. Intestine. Type locality. Argentina, Río Negro Province, Meseta Somuncurá, Arroyo Valcheta (40 º 50 ʹS, 66 º 40 ʹW). Holotype: MLP 4855. Paratypes: MLP 4856 (3 specimens).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF599757695FB79FDCDFA24.taxon	discussion	Remarks. Other paratype in The Natural History Museum, London, UK. Reference. Etchegoin et al. (2002).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
DE50E75DFFF599757695FD2BFDE2FC35.taxon	materials_examined	Type host. Buteogallus meridionales (Latham) (Aves: Accipitridae). Site of infection. Small intestine. Type locality. Argentina, Formosa Province, Pirané, Bellaco wetland (26 ° 17 ʹ 35 ʺS, 59 ° 06 ʹ 67 ʺW). Holotype: MLP 5883. Paratypes: MLP 5884 (9 specimens). Reference. Lunaschi & Drago (2009).	en	Lunaschi, Lia I., Álvarez, Victor Hugo Merlo, Damborenea, Cristina (2012): Type material housed in the Helminthological Collection of the Museo de La Plata, Buenos Aires, Argentina. Zootaxa 3199: 1-59, DOI: 10.5281/zenodo.208967
