taxonID	type	description	language	source
D75087AEFFB4F35DDE99D9F33E9BF915.taxon	materials_examined	Holotype: MZUSP 4304; adult female; 1230 mm TL (cited as 1330 mm TL in Sadowsky, 1965) (Fig. 5); Cananéia, S ã o Paulo, Brazil, 25 ºS, 47 º 52 ’ W; 8 m; collector not listed; 15 Jan 1963. Notes: Distal end of upper lobe of caudal fin detached; specimen strongly shrivelled. Taxonomic note: Synonym of Sphyrna media Springer, 1940.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB4F35DDE99DD433CA2FDD9.taxon	materials_examined	Paratypes: MZUSP 120375; one juvenile female; 420 mm TL (same TL as cited in Viana et al., 2018) (Fig. 2); one adult male, 441 mm TL (approximately the same TL as cited in Viana et al., 2018); off western Madagascar, 20 ° 0.37 ′ S, 43 ° 56.74 ′ E, 259 – 264 m; J. Groeneveld, 09 Sep 2009; MZUSP 120376; one adult female 491 mm TL (cited as 470 mm TL in Viana et al., 2018); off western Madagascar, 20 ° 0.11 ′ S, 43 ° 57.18 ′ E; depth 202 – 204 m; J. Groeneveld, 09 Sep 2009.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB4F35DDE99DE843C18FCCE.taxon	materials_examined	Holotype: MZUSP 118707; adult female; 733 mm TL (cited as 700 mm TL in Viana et al., 2016) (Fig. 3); off the coast of Rio Grande do Sul, Brazil; depth not listed; collector not listed; collection date not listed. Notes: Two skin samples removed from the dorsal region, close to first dorsal fin (Fig. 3 upper and middle pictures).	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB4F35DDE99D87F3C74FB45.taxon	materials_examined	Paratype: MZUSP 41518; one juvenile male; 947 mm TL (cited as 975 mm TL in Vooren & Silva, 1991) (Fig. 4); Southwestern Atlantic Ocean, Rio Grande do Sul coastal region, Brazil, 33 º 28 ’ S, 52 ª 17 ’ W; 52 m; collector not listed; 24 Jul 1982.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB4F358DE99DB6B3FCCF901.taxon	materials_examined	Holotype: MZUSP 124000; one adult female; 407 mm TL (cited as 398 mm TL in Soares et al., 2019) (Fig. 6); Southern Atlantic, Santa Catarina, Brazil, 30 º 0 ’ S, 48 º 0 ’ W; 600 m; collector not listed; collection date not listed. Paratype: MZUSP 124001; one adult female; 419 mm TL (cited as 425 mm TL in Soares et al., 2019); Southern Atlantic, Cabo Frio, Rio de Janeiro, Brazil; 24 º 0 ’ S, 41 º 0 ’ W); 500 m; collector not listed; collection date not listed. Notes: Specimen pregnant and ventrally dissected with digestive tract, reproductive tract and heart removed; lower jaw and branchial basket medially sectioned.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB0F359DE99D936393CFA7C.taxon	description	Notes: Specimen ventrally dissected, with digestive tract and heart removed.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB0F359DE99DA253E51F969.taxon	materials_examined	Paratypes: MZUSP 110448; one adult male; 480 mm TL (cited as 465 mm TL in Soares et al., 2015); Alagoas, North-eastern Brazil, 9 ºS, 34 º 50 ’ W; depth not listed; collector not listed; 07 Nov 1997; MZUSP 110449; one adult male; 437 mm TL (cited as 445 mm TL in Soares et al., 2015); Rio Grande do Norte, North-eastern Brazil,; 6 º 14 ’ S, 34 º 51 ’ W); depth not listed; collector not listed; 30 Nov 1998.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFBFF356DE99DCBB3929FE3C.taxon	description	Taxonomic note: Valid as Hypanus marianae (Gomes, Rosa & Gadig, 2000).	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFBFF356DE99DAFB39A1F838.taxon	description	Notes: Mild skin damage posterior to left eye. DW not mentioned in Petean et al., (2020).	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFBEF354DE99DCF33E5AF9DE.taxon	materials_examined	Holotype: MZUSP 104662; adult female, 542 mm DW (approximately the same DW as cited in Fontenelle & Carvalho, 2017) (Fig. 8); Rio Uraricoera — tributary of Rio Branco, Boa Vista municipality, Roraima state, Brazil; 3 º 22 ’ 52 ’’ N, 60 º 35 ’ 44 ’’ W; depth not listed; M. R. de Carvalho et al.; 21 Feb 2007. Notes: Cut on right portion of abdomen; Cut on left gill openings; lateral corners of Meckel’s cartilage sectioned to allow opening of the mouth. Field no. AM 07 - 45. Paratype: MZUSP 104664: AM 07 - 47; one adult female, 450 mm DW (same DW as cited in Fontenelle & Carvalho, 2017); Rio Uraricoera — tributary of Rio Branco, Boa Vista municipality, Roraima state, Brazil, 3 º 22 ’ 96 ’’ N, 60 º 35 ’ 44 ’’ W; depth not listed; M. R. de Carvalho et al.; 24 Feb 2007. Notes: Cut on right portion of abdomen; cut on left gill openings; lateral corners of Meckel’s cartilage sectioned to open the mouth; left clasper removed. Field no. AM 07 - 47.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFBDF355DE99DA943E95F8DF.taxon	materials_examined	Holotype: MZUSP 105016; adult female, 497 mm DW (approximately the same DW as cited in Carvalho, 2016 a); (Fig. 9); Pousada Santa Rosa, left bank of Rio Teles Pires — tributary of Rio Tapajós, Mato Grosso state, Brazil; 8 º 46 ’ 45 ’’ S, 57 º 27 ’ 55 ’’ W; depth not listed; M. R. de Carvalho et al.; 06 Dec 2005. Notes: Cuts close to the branchial region and above left side of digestive tract. Field no. MT 05 - 21. Paratypes: MZUSP 103922: TJ 05 - 39; one juvenile male, 294 mm DW; near mouth Igarapé Ponto Frio, Comunidade Pimental — right margin of Rio Tapajós, Pará state, Brazil; 4 º 33 ’ 05 ’’ S, 56 º 16 ’ 43 ’’ W; depth not listed; M. R. de Carvalho et al.; 10 Oct 2005. Notes: Colour pattern on upper left margin mildly lighter than rest of body. DW not provided in Carvalho, 2016 a. MZUSP 104999; one adult female, 375 mm DW (cited as 390 mm DW in Carvalho, 2016 a); Pousada Santa Rosa, left bank of Rio Teles Pires — tributary of Rio Tapajós, Mato Grosso state, Brazil, 8 º 46 ’ 45 ’’ S, 57 º 27 ’ 55 ’’ W; depth not listed; M. R. de Carvalho et al.; 06 Dec 2005. Notes: Branchial basket skin removed near coracoid bar; cut on the left side of abdomen. MZUSP 105001: MT 05 - 04; one adult male, 377 mm DW (approximately the same DW as cited in Carvalho, 2016 a); Pousada Santa Rosa, left bank of Rio Teles Pires — tributary of Rio Tapajós, Mato Grosso state, Brazil, 8 º 46 ’ 45 ’’ S, 57 º 27 ’ 55 ’’ W; depth not listed; M. R. de Carvalho et al.; 06 Dec 2005. Notes: Specimen with a cut on the ventral facet, left to the abdominal cavity. MZUSP 105006: MT 05 - 09; one adult male, 382 mm DW (approximately the same DW as cited in Carvalho, 2016 a); Pousada Santa Rosa, left bank of Rio Teles Pires — tributary of Rio Tapajós, Mato Grosso state, Brazil, 8 º 46 ’ 45 ’’ S, 57 º 27 ’ 55 ’’ W; depth: not listed; M. R. de Carvalho et al.; 06 Dec 2005. Notes: Skin sampled removed for Scanning Electronic Microscopy analysis, above the synarcual. MZUSP 105010: MT 05 - 13; one juvenile female, 309 mm DW (approximately the same DW as cited in Carvalho, 2016 a); locality: (Pousada Santa Rosa, left bank of Rio Teles Pires — tributary of Rio Tapajós, Mato Grosso state, Brazil, 8 º 46 ’ 45 ’’ S, 57 º 27 ’ 55 ’’ W; depth not listed; M. R. de Carvalho, F. Marques, A. Datovo & M. Carvalho; 06 Dec 2005. Notes: Specimen with a cut on the left portion of the abdomen.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFBBF353DE99DCBB39C6FB51.taxon	materials_examined	Holotype: MZUSP 110910; adult female, 351 mm DW (cited as 341 mm DW in Loboda & Carvalho, 2013); (Fig. 10); Rio Paraguai, municipality subdistrict of Albuquerque, municipality of Corumbá, Mato Grosso do Sul state, Brazil, 19 º 41 ’ S, 57 º 38 ’ W; depth not listed; F. P. Marques, L. Marques, F. Reyda & W. Santana; 11 Dec 2003. Notes: Cut on the right portion of the abdomen. Field no. BZ- 07 [MS 03]. Paratypes: MZUSP 110904: PR 04 - 21; one adult male, 311 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraná, municipality of Porto Primavera, S ã o Paulo state, Brazil, 22 º 47 ’ S, 52 º 96 ’ W; depth not listed; W. B. A. de Oliveira & G. C. Evangelista; 06 Apr 2004. Notes: Cut on the right portion of the abdomen. Skin patch removed for SEM. MZUSP 110906: BZ- 03 [MS 03]; one adult female, 298 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraguai, subdistrict of Albuquerque, municipality of Corumbá, Mato Grosso do Sul state, Brazil, 19 º 41 ’ S, 57 º 38 ’ W; depth not listed; F. P. L. Marques et al.; 08 Dec 2003. Notes: Cut on right portion of the abdomen. Skin patch removed for SEM. MZUSP 110907: BZ- 04 [MS 03]; one adult female, 260 mm DW (cited as 270 mm DW in Loboda & Carvalho, 2013); Rio Paraguai, subdistrict of Albuquerque, municipality of Corumbá, Mato Grosso do Sul state, Brazil, 19 º 41 ’ S, 57 º 38 ’ W; depth not listed; F. P. L. Marques et al.; 08 Dec 2003. Notes: Digestive tract removed. Cut on right portion of the abdomen. Tail broken. Caudal stinger medially broken. Liver removed. MZUSP 110909: BZ- 06 [MS 03]; adult female, 290 mm DW (same DW as cited in Loboda & Carvalho, 2013); Rio Paraguai, subdistrict of Albuquerque, municipality of Corumbá, Mato Grosso do Sul State, Brazil, 19 º 41 ’ S, 57 º 38 ’ W; depth not listed; F. P. L. Marques et al.; 10 Dec 2003. Notes: Digestive tract removed. Cut on right portion of abdomen region. Bite scar on right dorsal margin of disc. Skin patch removed for SEM. MZUSP 110913: BZ- 11 [MS 03]; one adult female, 258 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraguai, subdistrict of Albuquerque, municipality of Corumbá, Mato Grosso do Sul State, Brazil, 19 º 41 ’ S, 57 º 38 ’ W; depth not listed; F. P. L. Marques et al.; 12 Dec 2003. Notes: Digestive tract removed. Cut on right portion of abdomen. Slight circular damage on left portion of ventrolateral surface. MZUSP 111916: BZ- 15 [MS 03]; one adult male, 262 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraná, subdistrict of Jupiá, municipality of Três Lagoas, State of Mato Grosso do Sul, Brazil, 20 º 79 ’ S, 51 º 65 ’ W; depth not listed; F. P. L. Marques et al.; 15 Dec 2003. Notes: Cut on right portion of abdominal cavity. Small skin damage on the right dorsal disc. MZUSP 111917: BZ- 17 [MS 03]; one juvenile male, 216 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraná, subdistrict of Jupiá, municipality of Três Lagoas, Mato Grosso do Sul State, Brazil, 20 º 79 ’ S, 51 º 65 ’ W; depth not listed; F. P. L. Marques et al.; 15 Dec 2003. Notes: Digestive tract removed. Bite scar on posterior left margin of disc. Cut on upper left portion of disc. MZUSP 111919: BZ- 35 [MS 03]; one adult female, 242 mm DW (cited as 236 mm DW in Loboda & Carvalho, 2013); Rio Paraná, subdistrict of Jupiá, municipality of Três Lagoas, Mato Grosso do Sul State, Brazil, 20 º 79 ’ S, 51 º 65 ’ W; depth not listed; F. P. L. Marques et al.; 16 Dec 2003. Notes: Longitudinal cut on dorsal pre-caudal region. Digestive tract removed. MZUSP 111920: BZ- 37 [MS 03]; one adult male, 259 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraná, subdistrict of Jupiá, municipality of Três Lagoas, Mato Grosso do Sul State, Brazil, 20 º 79 ’ S, 51 º 65 ’ W; depth not listed; F. P. L. Marques et al.; 17 Dec 2003. Notes: Four bite scars on the margin of the disc: two small ones anteriorly and posteriorly on the right side, and two large ones on left posterior portion. Cut on right portion of abdomen. MZUSP 111921: BZ- 43 [MS 03]; one adult female, 309 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraná, municipality Jupiá, municipality of Três Lagoas, Mato Grosso do Sul State, Brazil, 20 º 79 ’ S, 51 º 65 ’ W; depth not listed; F. P. L. Marques et al.; 17 Dec 2003. Notes: Cut on right portion of abdomen. Superficial damage on left posterodorsal surface. MZUSP 111923: BZ- 51 [MS 03]; one juvenile female, 201 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraná, subdistrict of Jupiá, municipality of Três Lagoas, Mato Grosso do Sul State, Brazil, 20 º 79 ’ S, 51 º 65 ’ W; depth not listed; F. P. L. Marques et al.; 16 Dec 2003. Notes: Digestive tract removed. Cut on the right portion of abdomen. MZUSP 111925: BZ- 55 [MS 03]; one juvenile male, 200 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Paraná, subdistrict of Jupiá, municipality of Três Lagoas, Mato Grosso do Sul State, Brazil, 20 º 79 ’ S, 51 º 65 ’ W; depth not listed; F. P. L. Marques et al.; 17 Dec 2003. Notes: Tip of the rostrum slightly damage. Tail broken. Incision on right portion of abdomen.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFBAF353DE99D9173F94F8F5.taxon	materials_examined	Holotype: MZUSP 117344; adult male, 518 mm DW (cited as 532 mm in Fontenelle & Carvalho, 2017) (Fig. 11); Rio Jutaí, municipal district of Boca do Titica, upper Rio Amazonas, Amazonas state, Brazil, 2 º 55 ’ 24.8 ’’ S, 66 º 57 ’ 07.6 ’’ W; depth not listed; F. Marques et al.; 24 Sep 2012. Notes: Skin patches removed on ventral surface, with a cut on the right portion of abdomen. Field no. JU 12 - 10. Paratypes: MZUSP 117346: JU 12 - 12; one adult female, 402 mm DW (approximately the same DW as cited in Fontenelle & Carvalho, 2017); Rio Jutaí, municipal district of Boca do Titica, upper Rio Amazonas, Amazonas state, Brazil, 2 º 55 ’ 24.8 ’’ S, 66 º 57 ’ 07.6 ’’ W; depth not listed; F. Marques et al.; 25 Sept 2012. Notes: Skin samples close to eyes removed for SEM. Skin partially removed on ventral surface. MZUSP 117348: JU 12 - 19; one adult male, 495 mm DW (approximately the same DW as cited in Fontenelle & Carvalho, 2017); Rio Jutaí, municipal district of Boca do Titica, upper Rio Amazonas, Amazonas state, Brazil, 2 º 55 ’ 24.8 ’’ S, 66 º 57 ’ 07.6 ’’ W; depth not listed; F. Marques et al.; 25 Sep 2012. Notes: Cut on right portion of abdomen.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB9F351DE99D8B73807F970.taxon	materials_examined	Holotype: MZUSP 105023; adult female, 439 mm DW (cited as 453 mm DW in Carvalho, 2016 a); (Fig. 12); Rio Jamanxim, Tapajós basin, near Novo Progresso, Pará State, Brazil, 07 ° 09 ' 30 " S, 55 ° 25 ' 55 " W; depth not listed; M. R. de Carvalho et al.; 14 Sep 2005. Notes: Cut on the right portion of abdomen. Incision between gill openings. Field no. MT 05 - 28. Paratypes: MZUSP 25578; one adult female, 421 mm DW; Igarapé Uruá or Boa Vista, left bank afluent, Rio Tapajós, next to bridge at km 62 of highway BR 230, Pará State, Brazil, 04 ° 30 ' S, 56 ° 15 ' W; depth not listed; J. C. Oliveira; 31 Jan 1979. Notes: Perforation posterior to right spiracle, trespassing entire specimen; DW not provided in original publication. MZUSP 103920: TJ 05 - 37; one adult female, 468 mm DW (approximately the same DW as cited in Carvalho, 2016 a); Comunidade Pimental, mouth of igarapé Ponto Frio, right margin of Rio Tapajós, Pará State, Brazil, 4 ° 33 ' 05 " S, 56 ° 16 ' 43 " W; depth not listed; M. R. de Carvalho et al.; 10 Oct 2005. MZUSP 103921: TJ 05 - 38; one adult male, 376 mm DW; Comunidade Pimental, mouth of igarapé Ponto Frio, right margin of Rio Tapajós, Pará State, Brazil, 4 ° 33 ' 05 " S, 56 ° 16 ' 43 " W; depth not listed; M. R. de Carvalho et al.; 10 Oct 2005. Notes: End of tail broken. DW not provided in Carvalho (2016 a), TL provided instead (current TL 663 mm, cited as 693 mm TL). MZUSP 105002: MT 05 - 05; one adult female, 422 mm DW (approximately the same DW as cited in Carvalho, 2016 a); near Pousada Santa Rosa, left bank of Rio Teles Pires, Rio Tapajós, Mato Grosso State, Brazil, 08 ° 46 ' 45 " S, 57 ° 27 ' 55 " W; depth not listed; M. R. de Carvalho et al.; 02 Dec 2005. Notes: Two skin samples (anteriorly and posteriorly to eyes) removed for SEM. Skin partially removed close to branchial region, with a cut on the right portion of abdomen. MZUSP 105011: MT 05 - 15; one adult male, 389 mm DW (approximately the same DW as cited in Carvalho, 2016 a); near Pousada Santa Rosa, left bank of Rio Teles Pires, Rio Tapajós, Mato Grosso State, Brazil, 08 ° 46 ' 45 " S, 57 ° 27 ' 55 " W; depth not listed; M. R. de Carvalho et al.; 05 Dec 2005. Notes: Skin sampled removed for SEM analysis. End of tail removed. Terminal end of sting broken. MZUSP 105013; one juvenile male, 288 mm DW; near Pousada Santa Rosa, left bank of Rio Teles Pires, Rio Tapajós, Mato Grosso State, Brazil, 08 ° 46 ' 45 " S, 57 ° 27 ' 55 " W; depth not listed; M. R. de Carvalho et al.; 06 Dec 2005. Notes: Incision anteriorly on the right side of dorsal surface, close to clasper and dorsal to pelvic fin insertion. Two ventral incisions: one between gill openings and one on right portion of abdomen. DW not provided in Carvalho (2016 a). MZUSP 105038: MT 05 - 43; one subadult male, 312 mm DW (approximately the same DW as cited in Carvalho, 2016 a); Rio Jamanxim, Rio Tapajós basin, near Novo Progresso, Pará State, Brazil, 07 ° 09 ' 30 " S, 55 ° 25 ' 55 " W; depth not listed; M. R. de Carvalho et al.; 14 Dec 2005. Notes: DW not provided in Carvalho (2016 a). MZUSP 105040: MT 05 - 45; one adult female, 345 mm DW (approximately the same DW as cited in Carvalho, 2016 a); Rio Jamanxim, Tapajós basin, near Novo Progresso, Pará State, Brazil, 07 ° 09 ' 30 " S, 55 ° 25 ' 55 " W; depth not listed; M. R. de Carvalho et al.; 14 Dec 2005. Notes: Small incision on the right portion of abdomen. Skin patch detached on right side of mouth.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFB8F34FDE99DB213E27FF41.taxon	materials_examined	Holotype: MZUSP 104031; adult male, 477 mm DW (cited as 498 mm DW in Fontenelle et al. 2014) (Fig. 13); Represa Samuel, district of Itapo ã do Oeste, Rio Madeira basin, Rio Jamari, Amazon basin, Rondônia State, Brazil, 9 º 4 ’ 33.96 ’’ S, 63 º 18 ’ 17.64 ’’ W; depth not listed; F. P. L. Marques et al.; May 2006. Notes: Fontenelle et al. (2014) mistakenly cited this species as MZUSP 103031. Specimen with an incision on left dorsal pectoral fin and damage on right posterior disc margin. Branchial arches on right side removed, caudal fin end damaged and mandibular arch sectioned on lateral margins. Incision on anteroventral portion of caudal fin. Field no. AC 06 - 25. Paratypes: MZUSP 104039: AC 06 - 39; one adult male, 352 mm DW (approximately the same DW as cited in Fontenelle et al., 2014); Represa Samuel, district of Itapo ã do Oeste, Rio Madeira basin, Rio Jamari, Amazon basin, Rondônia State, Brazil, 9 º 4 ’ 33.96 ’’ S, 63 º 18 ’ 17.64 ’’ W; depth not listed; F. P. L. Marques et al.; May 2006. Notes: Specimen with a cut on anterior ventral portion of caudal fin. MZUSP 104040: AC 06 - 40; one subadult male, 347 mm DW (cited as 356 mm DW in Fontenelle et al., 2014); Represa Samuel, district of Itapo ã do Oeste, Rio Madeira basin, Rio Jamari, Amazon basin, Rondônia State, Brazil, 9 º 4 ’ 33.96 ’’ S, 63 º 18 ’ 17.64 ’’ W; depth not listed; F. P. L. Marques et al.; May 2006. Notes: Specimen with incision on anteroventral portion of caudal fin. Superficial damage to region posterior to eyes. Right clasper removed. Mandibular arch sectioned on lateral borders. End of tail damaged. MZUSP 104041: AC 06 - 41; one subadult female, 364 mm DW (cited as 356 mm in Fontenelle et al., 2014); Represa Samuel, municipal district of Itapo ã do Oeste, Madeira Rio basin, Jamari Rio, Amazon basin, Rondônia State, Brazil, 9 º 4 ’ 33.96 ’’ S, 63 º 18 ’ 17.64 ’’ W; depth not listed; F. P. L. Marques et al.; May 2006. Notes: Specimen with discolouration on anterior right margin of disc. Mild damage on left dorsal portion of disc, posterior to the synarcual. Tail extending to medial portion of sting, damage on right ventral side. Right dorsomedial portion of caudal fin forming a ‘ C-shaped’ scar.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA6F34FDE99DD123F94F8CE.taxon	materials_examined	Holotype: MZUSP 117790; adult female, 226 mm DW (approximately the same DW as cited in Silva & Loboda, 2019); (Fig. 14); Rio Tarauacá, municipality of Tarauacá, Acre State, Brazil, 8 º 4 ’ 5.88 ” S, 70 º 43 ’ 4.8 ” W; depth not listed; F. P. L. Marques et al.; July 2006. Notes: Ventral skin removed. Right lateral line canals with black ink dots for drawings on original publications. Field no. AC 06 - 106. Paratypes: MZUSP 117787: AC 06 - 95; one adult male, 216 mm DW (approximately the same DW as cited in Silva & Loboda, 2019); Rio Tarauacá, municipality of Tarauacá, Acre State, Brazil, 8 º 4 ’ 5.88 ” S, 70 º 43 ’ 4.8 ” W; depth not listed; F. P. L. Marques et al.; July 2006. Notes: Cut between gill openings. Cut on right portion abdomen. MZUSP 117795: AC 06 - 92; one adult male, 207 mm DW (approximately the same DW as cited in Silva & Loboda, 2019); Rio Tarauacá, municipality of Tarauacá, Acre State, Brazil, 8 º 4 ’ 5.88 ” S, 70 º 43 ’ 4.8 ” W; depth: not listed; Collection date: F. P. L. Marques et al.; July 2006. Notes: Cut between gill openings; cut on right portion of abdomen. MZUSP 117798: AC 06 - 107; one adult female, 244 mm DW (approximately the same DW as cited in Silva & Loboda, 2019); Rio Tarauacá, municipality of Tarauacá, Acre State, Brazil, 8 º 4 ’ 5.88 ” S, 70 º 43 ’ 4.8 ” W; depth not listed; F. P. L. Marques et al.; July 2006. Notes: Cut on right portion of abdomen.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA5F34DDE99DCBB3E01FE69.taxon	materials_examined	Holotype: MZUSP 110890; adult female, 318 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013) (Fig. 15); Baia Sinhá Mariana, tributary of Rio Cuiabá, Barão de Melgaço, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; 24 Apr 2000. Notes: Digestive tract removed. Puboischiadic bar sectioned medially and right ventral disc border with mild skin damage (still attached to specimen). Paratypes: MZUSP 110874; one adult female, 302 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Cuiabá, Rosário Oeste, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; 24 Apr 2000. Notes: Digestive tract removed. Lower jaw sectioned on lateral edges. Specimen dissected on the neurocranium region. MZUSP 110888; one adult female, 349 mm DW (cited as 336 mm DW in Loboda & Carvalho, 2013); Baia Sinhá Mariana, tributary of Rio Cuiabá, Bar ã o de Melgaço, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; 24 Apr 2000. Notes: Digestive tract removed. Puboischiadic bar sectioned medially. Tail broken. Skin patch removed for SEM. Caudal stinger removed. MZUSP 110889; one adult female, 326 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Baia Sinhá Mariana, tributary of Rio Cuiabá, Bar ã o de Melgaço, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; Collection date: 24 Apr 2000. Notes: Digestive tract removed. Caudal stinger removed. MZUSP 110891; one adult male, 270 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Baia Sinhá Mariana, tributary of Rio Cuiabá, Bar ã o de Melgaço, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; 24 Apr 2000. Notes: Tail removed. MZUSP 110892; one adult female, 298 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Baia Sinhá Mariana, tributary of Rio Cuiabá, Bar ã o de Melgaço, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; 24 Apr 2000. Notes: Digestive tract removed. Skin patch removed for SEM. Caudal sting removed. MZUSP 110894; one adult female, 317 mm DW; Baia Sinhá Mariana, tributary of Rio Cuiabá, Bar ã o de Melgaço, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; 24 Apr 2000. Notes: Specimen not located. MZUSP 110901; one adult female, 303 mm DW (approximately the same DW as cited in Loboda & Carvalho, 2013); Rio Cuiabá, Rosário Oeste, Mato Grosso State, Brazil; depth not listed; W. J. da Graça; 24 Apr 2000. Notes: Digestive tract removed. Tip of tail damaged.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	Holotype: MZUSP 120371; adult female, 636 mm DW (cited as 690 mm DW in Carvalho, 2016 b) (Fig. 16); Rio Tocantins near the mouth of the right bank tributary Rio Manoel Alves, Tocantins State, Brazil, 11 ° 18 ' 55 " S, 48 ° 27 ' 28 " W; depth not listed; NEAMB team; 10 Jul 2003.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Formerly UNT 7139.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	Paratypes: MZUSP 120354; adult female, 341 mm DW (approximately the same DW as cited in Carvalho, 2016 b); Rio Tocantins, next to Rio Santa Tereza, Tocantins State, Brazil, 11 ˚ 47 ’ 27 ” S, 48 ˚ 37 ’ 2 ” W; depth not listed; NEAMB team 08 Sep 2003;	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. Formerly UNT 2198.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120355; adult male, 352 mm DW (cited as 380 mm DW in Carvalho, 2016 b); Rio Tocantins, at Rio Manoel Alves, Tocantins State, Brazil, 11 ˚ 18 ’ 55 ” S, 48 ˚ 27 ’ 28 ” W; depth not listed; NEAMB team; 13 Jun 2003;	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. Formerly UNT 2199.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120356; adult male, 363 mm DW (cited as 378 mm DW in Carvalho, 2016 b); Rio Areias at confluence with Rio Tocantins, Tocantins State, Brazil, 10 ° 52 ' 05 '' S, 48 ° 21 ' 39 " W; depth not listed; NEAMB team; 08 Jun 2003.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. Branchial openings medially sectioned, but not dissected. Formerly UNT 2200.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120358; adult male, 432 mm DW; Rio Areias at confluence with Rio Tocantins, Tocantins State, Brazil, 10 ° 52 ' 05 '' S, 48 ° 21 ' 39 " W; depth not listed; NEAMB team; 12 Sep 2002.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. DW not included in Carvalho (2016 b). Formerly UNT 7097.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120360; adult male 392 mm DW; Rio Maranhão at Traçadal farm, Tocantins State, Brazil, 12 ˚ 31 ’ 21 ” S, 48 ˚ 13 ’ 41 ” W; depth not listed; NEAMB team; 03 Mar 2000.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: DW not provided in Carvalho (2016 b). Formerly UNT 7116	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120362; adult male, 422 mm DW; Rio Paranã at Traçadal Farm, Tocantins State, Brazil, 12 ˚ 30 ’ 35 ” S, 48 ˚ 12 ’ 57 ” W; depth not listed; NEAMB team; 09 Aug 2000.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. DW not included in Carvalho (2016 b). Formerly UNT 7117.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120363; adult male, 391 mm DW; Rio Tocantins at confluence with Rio Santa Tereza, Tocantins state, Brazil, 11 ° 47 ' 26 " S, 48 ° 27 ' 28 " W; depth not listed; NEAMB team; 14 Oct 2003.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. DW not included in Carvalho, 2016 b. Formerly UNT 7118.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120364; adult male, 449 mm DW; Rio Tocantins, Rio Manoel Alves, Tocantins State, Brazil, 11 ˚ 18 ’ 55 ” S, 48 ˚ 27 ’ 28 ” W; depth: not listed; NEAMB team; 20 Dec 2001.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. DW not included in Carvalho (2016 b). Formerly UNT 7123.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120365; one adult male; 421 mm DW; Rio Tocantins, at confluence with Rio Santa Tereza, Tocantins State, Brazil, 11 ° 47 ' 26 " S, 48 ° 37 ' 01 " W; depth not listed; NEAMB team; 20 Dec 2001.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. Puboischiadic medially bar sectioned. DW not included in Carvalho (2016 b). UNT 7125.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120366; one adult male, 413 mm DW; Rio Tocantins at Traçadal farm, Tocantins state, Brazil, 12 ˚ 28 ’ 1 ” S, 48 ˚ 14 ’ 47 ” W; depth not listed; NEAMB team; 25 Aug 1998.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. Round bite scar on posteromedian margin of disc. DW not included in original description. Formerly UNT 7128.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120367; one adult female, 649 mm DW; Rio Maranhão at Traçadal farm, Tocantins State, Brazil, 12 ˚ 31 ’ 21 ” S, 48 ˚ 13 ’ 41 ” W; depth not listed; NEAMB team; 27 May 1998.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: DW not included in original description. Formerly UNT 7131.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120368; one adult female, 472 mm DW; Rio Paranã at Traçadal Farm, Tocantins State, Brazil, 12 ˚ 30 ’ 35 ” S, 48 ˚ 12 ’ 57 ” W; depth not listed; NEAMB team; 03 Jun 2000.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. DW not included in original description. Formerly UNT 7133.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120369; one adult male, 354 mm DW (approximately the same DW as cited in Carvalho, 2016 b); Rio Crixás, Brejinho de Nazaré, Tocantins State, Brazil, 11 ° 08 ' 15 " S, 48 ° 45 ' 06 " W; depth not listed; NEAMB team; 22 Jul 2000.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. Formerly UNT 7136.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120370; one adult female, 636 mm DW; Rio São Valério at confluence with Rio Tocantins, Tocantins State, Brazil, 11 ˚ 21 ’ 51 ” S, 48 ˚ 28 ’ 16 ” W; depth: not listed; NEAMB team; 06 Oct 2003.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Right disc margins damaged. Digestive tract removed and puboischiadic bar medially sectioned. DW not included in Carvalho (2016 b). Formerly UNT 7138.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120372; one adult female, 618 mm DW (approximately the same DW as cited in Carvalho, 2016 b); Rio Tocantins, at Rio Manoel Alves, Tocantins State, Brazil, 11 ˚ 18 ’ 55 ” S, 48 ˚ 27 ’ 28 ” W; depth not listed; NEAMB team; 08 Aug 2002.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Skin patch on midportion head removed for SEM. Digestive tract removed. Right gill openings damaged. Right mouth corner damaged. Formerly UNT 7142.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	materials_examined	MZUSP 120373; one adult male, 479 mm DW (approximately the same DW as cited in Carvalho, 2016 b); Rio Tocantins, at Rio Manoel Alves, Tocantins State, Brazil, 11 ˚ 18 ’ 55 ” S, 48 ˚ 27 ’ 28 ” W); depth not listed; NEAMB team; 14 Sep 2001.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA4F34ADE99DE0F3972F8BD.taxon	discussion	Notes: Digestive tract removed. Puboischiadic bar sectioned. Formerly UNT 7147.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA3F34BDE99DB603F36FA92.taxon	materials_examined	Holotype: MZUSP 107673; adult male, 343 mm DW (approximately the same DW as cited in Silva & Carvalho, 2011) (Fig. 17); Rio Madre de Díos, municipal district of Boca Manu, upper Amazon basin, Madre de Dios State, Peru, 12 ° 40 ’ S, 71 ° 04 ’ 06 ” W; depth not listed; F. B. Reyda; 15 Jan 2002.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA3F34BDE99DB603F36FA92.taxon	discussion	Notes: Field no. PU- 23.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA3F34BDE99DB603F36FA92.taxon	materials_examined	Paratypes: MZUSP 107667: PU- 07; one adult male, 362 mm DW; Rio Madre de Díos, municipal district of Boca Manu, upper Amazon basin, Madre de Dios State, Peru, 12 ° 40 ’ S, 71 ° 04 ’ 06 ” W; depth not listed; F. B. Reyda; 27 May 2001.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA3F34BDE99DB603F36FA92.taxon	discussion	Notes: Specimen donated to MUSM. DW provided here cited on Silva & Carvalho, 2011.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA3F34BDE99DB603F36FA92.taxon	materials_examined	MZUSP 107668: PU- 13; one preadult female, 262 mm DW (approximately the same DW as cited in Silva & Carvalho, 2011); Rio Madre de Díos, municipal district of Boca Manu, upper Amazon basin, Madre de Dios State, Peru, 12 ° 40 ’ S, 71 ° 04 ’ 06 ” W; depth not listed; F. B. Reyda; 30 May 2001.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA3F34BDE99DB603F36FA92.taxon	discussion	Notes: Digestive tract removed.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA2F349DE99D95D3F29FDD9.taxon	materials_examined	Holotype: MZUSP 117809; adult female, 253 mm DW (cited as 264 mm DW in Carvalho et al., 2016), (Fig. 18); Rio Negro, municipality of Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth: not listed; F. Marques et al.; 09 Jan 2011. Notes: Specimen with a cut on right portion of abdomen. Paratypes: MZUSP 10290; one female, 206 mm DW; vicinity of Manaus, Rio Negro, Amazonas, Brazil; depth not listed; EPA; 15 Nov 1967. Notes: Specimen not located. DW provided here is cited on Carvalho et al. (2016). MZUSP 19209; one female, 217 mm DW; Rio Negro, at mouth of Rio Cuieiras, above Manaus, Amazonas, Brazil; depth not listed; Alpha Helix Amazon Expedition; 01 Jan 1977. Notes: Specimen not located. DW provided here is cited on Carvalho et al. (2016). MZUSP 104962: RN 04 - 07; one adult female, 210 mm DW; lake adjacent to mouth of Rio Demeni, Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 45 ' 52.9986 " S, 62 ° 56 ' 34.998 " W; depth not listed; M. L. G. de Araújo et al.; 24 Feb 2004. Notes: Digestive tract removed. One diplospondylic centrum removed. Damage on the right portion of posteroventral surface of disc. Tail broken. DW not provided in Carvalho et al. (2016). MZUSP 104966: N 04 - 58; one female, 320 mm TL; Comunidade Marabá, Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 58 ' 37.9992 " S, 62 ° 56 ' 34.998 " W; depth not listed; M. L. G. de Araújo et al.; 24 Feb 2004. Notes: Specimen not located. TL is provided instead of DW in Carvalho et al. (2016). MZUSP 104977: RN 05 - 65; one adult male, 161 mm DW. Praia do Tabuleiro, Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 54 ' 24.0006 " S, 62 ° 58 ' 20.9994 " W; depth not listed; M. Domingues et al.; 31 Jan 2005. Notes: Cut on right portion of abdomen. Branchial chamber opened. Skin patch removed for SEM. DW is not mentioned in Carvalho et al. (2016). MZUSP 117804: RN 11 - 01; one female, 189 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth not listed; F. Marques et al.; 09 Jan 2011. Notes: Cut on right portion of abdomen. Three perforations piercing the right portion of disc. DW not mentioned in Carvalho et al. (2016). MZUSP 117805: RN 11 - 08; one adult male, 145 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth not listed; F. Marques et al.; 09 Jan 2011. Notes: Cut on right portion of abdomen. DW not mentioned in Carvalho et al. (2016). MZUSP 117806: RN 04 - 33; one adult male, 220 mm DW; Mouth of Rio Demeni, Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 46 ' 31.8 " S, 62 ° 56 ' 14.28 " W; depth not listed; F. Marques et al.; 26 Feb 2004. Notes: Cut on right portion of abdomen. Skin patch removed for SEM. DW not mentioned in Carvalho et al. (2016). MZUSP 117807: RN 11 - 13; one adult female, 241 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth: not listed; F. Marques et al.; 09 Jan 2011. Notes: Cut on right portion of abdomen. Tail broken. Discolouration on right posterodorsal portion of disc. DW not mentioned in Carvalho et al. (2016). MZUSP 117808: RN 11 - 15; one adult female, 205 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth not listed; F. Marques et al.; 09 Jan 2011. Notes: Cut on the right portion of abdomen; ventral caudal stinger removed; dorsal stinger broken. Tail broken. DW not provided in Carvalho et al. (2016). MZUSP 117810: RN 11 - 20; one adult female, 222 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth not listed; F. Marques et al.; 09 Jan 2011. Notes: Cut on right portion of abdomen. DW not mentioned in Carvalho et al. (2016). MZUSP 117811: RN 11 - 06; one adult female, 234 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth not listed; F. Marques et al.; 09 Jan 2011. Notes: Cut on portion of abdomen. Discolouration on posterodorsal surface of disc, with scars. Tail partially damaged. DW not mentioned in Carvalho et al. (2016). MZUSP 117812: RN 11 - 30; one adult male, 206 mm DW; Rio Negro, Barcelos, Amazonas, Brazil, 0 ° 57 ' 30.24 " S, 62 ° 56 ' 14.697 " W; depth not listed; F. Marques et al.; 09 Jan 2011. Notes: Cut on right portion of abdomen. Desquamation on left portion of disc. Tail partially damaged. DW not mentioned in Carvalho et al. (2016).	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFA0F349DE99DE843C32FCC9.taxon	description	Notes: Midventral portion of disc with small cut. Discolouration on the central portion of the dorsal disc. Field no. PA 07 - 42.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFAFF346DE99DCBB3984FEDD.taxon	description	Notes: Ventral skin partially removed. Dorsal disc with skin patches removed for SEM.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFAFF346DE99DD9B3F98FD3D.taxon	description	Notes: Skin patches removed for SEM.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFAFF346DE99DA513C0AF841.taxon	materials_examined	Holotype: MZUSP 10153; adult male, 551 mm DW (cited as 579 mm DW in Rosa et al., 1987) (Fig. 21); Lago Janauacá and surroundings, Amazonas, Brazil; depth not listed; H. Britski; 3 Oct 1981. Notes: Specimen with tail severed, kept attached in with plastic zip lock. Location on storage tag mentions “ Rio Solimıes, above Rio Tefé ”, thus the type-locality is possibly incorrect. Paratype: MZUSP 14789; one juvenile male, 205 mm DW (approximately the same DW as cited in Rosa et al., 1987); Lago Janauacá and surroundings, Amazonas, Brazil; depth not listed; Alpha Helix Amazon Expedition; Jan 1977 / Notes: Eyes removed. Skin removed in some portions. Tail broken. Location on storage tag mentions “ Rio Solimıes ”.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF344DE99DDBF3EF1FCAD.taxon	materials_examined	Holotype: MZUSP 104998; adult female, 571 mm DW (approximately the same DW as cited in Carvalho & Lovejoy, 2011); (Fig. 23); Rio Javari, 04 ° 18 ’ 15 ” S, 70 ° 04 ’ 19 ” W, Benjamin Constant, Amazonas, Brazil; depth not listed; M. C. Junior & M. V. Domingues; 05 Sep 2006. Notes: Type-locality erroneously stated at the original description as “ Rio Jamari ”, a tributary of the rio Madeira in Rondônia state, Brazil, corrected here to ‘ Rio Javari’. Paratype: MZUSP 108203: PU 09 - 33; one preadult female, 269 mm DW (same DW as cited in Carvalho & Lovejoy, 2011); locality: Rio Nanay, Amazon basin, Departamento Loreto, Iquitos, Peru; depth not listed; F. Marques; 19 Oct 2009. Notes: Ventral skin partially removed for analysis of lateral line canals.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF344DE99DCBB3914FEF9.taxon	materials_examined	Paratype: MZUSP 108777: PU 09 - 45; one juvenile female, 74 mm DW (approximately the same DW as cited in Carvalho & Ragno, 2011) (Fig. 22); Rio Itaya, tributary of Rio Nanay (itself an affluent of Río Amazonas), near Iquitos, Departamento Loreto, Peru; depth not listed; F. Marques; 18 Oct 2009.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	materials_examined	Holotype: MZUSP 104996; adult male, 575 mm DW (approximately the same DW as cited in Carvalho & Lovejoy, 2011); (Fig. 24); Baia de Marajó, 0 ° 55 ’ 34 ’’ S, 48 ° 17 ’ 25 ’’ W, Colares, Pará State, Brazil; depth: not listed; P. C. Almeida; Collection date: 01 Jan 2003.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	discussion	Notes: Caudal sting absent.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	materials_examined	Paratypes: MZUSP 108200: PU 09 - 06; one juvenile female, 208 mm DW (approximately the same DW as cited in Carvalho & Lovejoy, 2011); Rio Nanay, Amazon Basin, Departamento Loreto, Iquitos, Peru; depth not listed; F. Marques; 17 Oct 2009.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	discussion	Notes: Tail broken. Cut on right portion of abdomen.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	materials_examined	MZUSP 108201: PU 09 - 05; one juvenile female, 357 mm DW (cited as 226 mm DW in Carvalho & Lovejoy, 2011); Rio Nanay, Amazon Basin, Departamento Loreto, Iquitos, Peru); depth not listed; F. Marques; 17 Oct 2009.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	discussion	Notes: Cut on the right portion of abdomen.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	materials_examined	MZUSP 108202: PU 09 - 19; one juvenile male, 412 mm DW (cited as 309 mm DW in Carvalho & Lovejoy, 2011); Rio Nanay Rio, Amazon Basin, Departamento Loreto, Iquitos, Peru; depth not listed; F. Marques; 18 Oct 2009.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFADF345DE99DAA63F94FEDD.taxon	discussion	Notes: Cut on right portion of abdomen.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFABF342DE99DD36387DFE18.taxon	materials_examined	Holotype: MZUSP 51600; adult male, 1380 mm DW (cited as 1471 mm TL in Gomes & Paragó, 2001) (Fig. 25); Santa Catarina, 26 º 44 ’ 15 ’’ S, 47 º 09 ’ 57 ’’ W, Eastern Brazil; depth not listed; collector not listed; 20 May 1997.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFABF342DE99DF3D3ECFFC04.taxon	description	Taxonomic note: Synonym of Psammobatis extenta (Garman, 1913).	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFABF342DE99DE153F4DFD78.taxon	materials_examined	Paratypes: MZUSP 13089 – 13102 (14, 59 – 173 mm DW; 116 – 339 mm TL); off Uruguay, 34 ºS, 50 ºW; depth: not listed; collector not listed; 30 Oct 1972.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
D75087AEFFAAF343DE99DD0B3F69FD49.taxon	materials_examined	Holotype: MZUSP 51293; adult male, 54 mm DW; (Fig. 26); Cabo de Santa Marta Grande, Southern Atlantic, Santa Catarina State, Brazil, 27 ° 25 ' S, 47 ' 05 ' W; 504 – 527 m; A. S. Martins; 29 Sep 1991. Notes: DW not provided in Ríncon et al. (2001). Paratypes: MZUSP 51294; four females (100 – 191 mm TL) and four males (104 – 180 mm TL); Southern Atlantic, Brazil, 27 º 25 ' S, 47 º 07 ' W; 500 – 524 m; A. S. Martins; 29 Sep 1991. MZUSP 127609 (formerly MZUSP 51294); one female 114 mm TL; Southern Atlantic, Brazil, 29 º 51 ' S, 47 º 50 ' W; 470 – 520 m; C. M. Vooren; 8 Oct 1991. Notes: Specimen with tag: No. 22 # 4. MZUSP 127610 (formerly MZUSP 51294); one male 145 mm TL; Cabo de Santa Marta Grande, Southern Atlantic, Santa Catarina state, Brazil, 27 ° 25 ' S, 47 ° 05 ' W; 504 – 527 m; C. M. Vooren; 29 Sep 1991. Notes: Specimen with tag: No. 1 # 30.	en	Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De (2023): Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP). Zootaxa 5296 (3): 301-332, DOI: 10.11646/zootaxa.5296.3.1, URL: http://dx.doi.org/10.11646/zootaxa.5296.3.1
