taxonID	type	description	language	source
03BE87ACFFCEFF80FF10FDA9FCEAFF35.taxon	description	(Fig. 1)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFCEFF80FF10FDA9FCEAFF35.taxon	materials_examined	Material examined. DIVA-Artabria I 2002: 1 female, AT- 600, 11 September 2002, 43 ° 53.457 ’ N, 008 ° 48.461 ’ W, 631 m, rocky bottom with carbonated nodules; 1 male, AT- 800, 11 September 2002, 43 ° 47.188 ’ N, 008 ° 53.053 ’ W, 842 m, rocky bottom; 2 females DRN- 600, 11 September 2002, 43 ° 48.340 ’ N, 008 ° 51.485 ’ W, 688 m, rocky bottom; 1 female, 1 juvenile, DRN- 800, 11 September 2002, 43 ° 51.265 ’ N, 008 ° 54.480 ’ W, 827 m, rocky bottom. DIVA- Artabria I 2003: 1 male, EBS- 600, 18 September 2003, 43 ° 48.587 ’ N, 008 ° 51.402 ’ W, 610 m, sand; 6 males, 6 females, 1 juvenile (1 male and 1 female used for lateral view figures MHNUSC 25106), DRN- 600, 18 September 2003, 43 ° 48.421 ’ N, 008 ° 51.453 ’ W, 607 m, rocky bottom. VERTIDOS 2004: 1 female, AG-AT 400 - 04, 19 September 2004, 42 ° 31.433 ’ N, 009 ° 25.693 ’ W, 446 m, rocky bottom. DIVA-Artabria II 2008: 3 males, 1 female, 31 - EBS, 25 September 2008, 43 ° 23.220 ’ N, 009 ° 32.300 ’ W, 862 m, nodules and rocks; 2 females, 07 - DRN-P, 20 September 2008, 43 ° 24.95 ’ N, 09 ° 25.50 ’ W, 490 m, nodules; SELVA 2008: 4 males, 2 juveniles, DRN- 7 19 July 2008, 44 ° 11.652 ’ N, 008 ° 58.152 ’ W, 1106 m, sand with corals; 1 male, 1 female, 1 juvenile, DRN- 17, 23 July 2008, 43 ° 42.289 ’ N, 008 ° 49.804 ’ W, 629 m, gravel with carbonate crusts mixed with stones and mud; 1 female, DRN- 30 - 1, 23 July 2008, 43 ° 48.511 ’ N, 008 ° 51.393 ’ W, 576 m, carbonate crusts; 1 female, 1 juvenile, DRN- 11, 18 July 2008, 44 ° 09.896 ’ N, 008 ° 39.581 ’ W, 459 m, stones mixed with sand.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFCEFF80FF10FDA9FCEAFF35.taxon	discussion	Remarks. The species was described by Sars (1893, 1895) based on material collected from Norway. Sars (1895) considered C. ciliata as a typical deep-sea species (‘ it is a true deep-water form, only occurring in depths ranging from 50 to 100 fathoms’). Although the descriptions and figures of Sars are incomplete, the diagnostic character of the species in males is very clear: male gnathopod 2 is totally covered by very fine setae and has a distinct shape (see Sars, 1895: pl. 239). Laubitz (1972) designated a lectotype from Sars’s material deposited in the Oslo Museum (No. F 12537 a) and provided figures of lateral view. Our specimens agree with the descriptions and figures of Sars (1883, 1895) and Laubitz (1972), especially regarding the setose gnathopod 2 in males, the elongate body, and the shape and size of the gills (with the second pair being smaller than the first pair). However, although Sars (1895) indicates in the description that the species has ‘ the back smooth throughout’ and the figure of Laubitz (1972) does not show any tubercles, some of our specimens are provided by small dorsal turbercles on head to pereonite 3 both in males and females. Furthermore, our specimens seem to be slightly smaller since the material collected from Galician waters does not exceed 10 mm while Sars (1895) described a male with 13 mm. In spite of these differences in body tuberculation and size between the type material and Galician specimens, we have preferred not to erect a new species since the diagnostic characters are identical among specimens and these minor differences could be probably attributed to intraespecific variation. Further molecular studies could help to explore genetic differentiation between the northernmost populations and the Galician specimens.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFCEFF80FF10FDA9FCEAFF35.taxon	distribution	Distribution. The species has been recorded from Norway, Sweeden, Denmark, Island and Alaska (McCain & Steinberg, 1970; Laubitz, 1972). Larsen (1998) recorded the species from Faroe Islands and the present study represents the southernmost record of this deep-sea species.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC8FF8EFF10FEFFFCD5F9C5.taxon	description	(Figs. 2 – 6)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC8FF8EFF10FEFFFCD5F9C5.taxon	materials_examined	Type material. Holotype male, 3.9 mm (used for drawings of lateral and dorsal view, antennae, gnathopods, pereopods 3 – 5, abdomen, maxilliped, maxilla 1, upper lip and lower lip) (vial with 70 % ethanol and one slide, mouthparts dissected) (MHNUSC 10092); DIVA-Artabria I 2002, EBS- 200, 8 September 2002, 43 ° 40.192 ’ N, 008 ° 43.760 ’ W, 212 m, muddy sand. Paratype “ a ” female, 2.9 mm (used for drawings of lateral view, gnathopod 2, pereopods 6 and 7, and abdomen, not dissected) (MHNUSC 10093); DIVA-Artabria I 2003, EBS- 200, 12 September 2003, 43 ° 40.250 ’ N, 008 ° 43.755 ’ W, 207 m, muddy medium sand. Paratypes collected together with the holotype: 4 males, 3 females, 5 juveniles (from them, 1 male “ b ” (MHNUSC 10094) and 2 females “ c ” (MHNUSC 10095) and “ d ” dissected (MHNUSC 10096), 3 slides) (male “ b ” used for drawings of maxilla 2 and mandibles); DIVA-Artabria I 2002, EBS- 200, 8 September 2002, 43 ° 40.192 ’ N, 008 ° 43.760 ’ W, 212 m, muddy sand. Other paratypes colleted together with paratype “ a ” (5 females, 5 juveniles, not dissected), (MHNUSC 10097); DIVA-Artabria I 2003, EBS- 200, 12 September 2003, 43 ° 40.250 ’ N, 008 ° 43.755 ’ W, 207 m, muddy medium sand. Additional material examined. 1 male, 1 juvenile, DIVA-Artabria I 2003, EBS- 150, 14 September 2003, 43 ° 34.127 ’ N, 008 ° 36.562 ’ W, 152 m, muddy sand; 1 female, VERTIDOS 2004, CA-EBS- 150 - 04, 18 September 2004, 42 ° 50.507 ’ N, 009 ° 25.773 ’ W, 151 m, muddy sand; 1 male, 1 juvenile, VERTIDOS 2004, AG-EBS- 150 - 04, 17 September 2004, 42 ° 30.391 ’ N, 009 ° 19.517 ’ W, 148 m, muddy sand; 8 males, 3 females, 6 juveniles (1 inmature male used for lateral view figure), VERTIDOS 2004, AG-EBS- 250 - 04, 19 September 2004, 42 ° 31.176 ’ N, 009 ° 23.380 ’ W, 248 m, muddy sand. Specimens kept in first author’s personal collection.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC8FF8EFF10FEFFFCD5F9C5.taxon	diagnosis	Diagnosis. Eyes present. Body dorsally smooth, apart from tiny dorsal tubercles anterolaterally on the head, near the eyes. Anterolateral projections present in pereonites 2, 3 and 4 in males, more developed on pereonite 2 than 3 and 4. Flagellum of antenna 1 four or five-articulate. Third article of the maxilliped palp with distal projection. Mandibular palp with setal formula 0 - x-y- 1 (from proximal to distal end). Basis of gnathopod 2 slightly shorter than pereonite 2. Pereopods 3 and 4 one-articulate. Pereopods 5 three-articulate. Abdomen without appendages, with a pair of lobes.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC8FF8EFF10FEFFFCD5F9C5.taxon	etymology	Etymology. The species is dedicated to our friend Prof. Dr. Victoriano Urgorri (“ Vituco ”) from Universidad de Santiago de Compostela for his great contribution to the field of Marine Biology. He was the leader of the cruise “ Diva Artabria I ” where the caprellid specimens of this new species were collected.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC8FF8EFF10FEFFFCD5F9C5.taxon	description	Description. Holotype male (3.9 mm) Lateral view (Fig. 2). Body dorsally smooth except for two tiny dorsal tubercles on the head, near the eyes (see also dorsal view Fig. 2). Eyes present. Pereonite 1 fused with head, suture present. Pereonites 2, 3 and 4 with anterolateral projections, especially developed in pereonite 2. Pereonite 5 the longest. Pereonite 7 the shortest. Gills (Fig. 2). Present at middle of pereonites 3 – 4, small and elongate, length about 2 times width. Mouthparts (Fig. 3, maxilliped, maxilla 1, upper lip and lower lip figured from holotype male; mandibles and maxilla 2 figured and described from male “ b ”). Mouthparts remarkably small (ca. 0.05 mm). Mandibles with triturative molar, moderately developed and dentate marginally. Three-articulate palp; distal article of palp the longest, with a setal formula 0 - x-y- 1, being x = 3 and y = 4; left mandible with incisor and lacinia mobilis fivedentate, followed by three accessory blades; incisor of right mandible five-dentate, lacinia mobilis looking like a blade, followed by two more blades; no sign of molar flake. Upper lip without setae. Lower lip without setae; inner lobes small and globose. Maxilla 1 outer lobe carrying seven spines, palp two-articulate, distal article with three apical spines and two medial seta. Maxilla 2 inner lobe small, shorter than outer lobe, with four apical setae; outer lobe with five apical setae. Maxilliped inner plate small, about 1 / 4 of outer plate in length, carrying four-five apical setae; outer plate elongate, with five setae; palp four-articulate, second article the longest, third article provided with a distal acute projection. Antennae (Figs. 2 and 4). Antenna 1 ca. 1 / 3 of body length; flagellum 5 - articulate. Antenna 2 slightly shorter than antenna 1; proximal peduncular article with an acute gland cone distally; swimming setae absent; flagellum two-articulate. Gnathopods (Figs. 2 and 4). Gnathopod 1 basis as long as ischium, merus and carpus combined; grasping margin of propodus smooth with several setae; two proximal grasping spines, dactylus bifid distally. Gnathopod 2 inserted on anterior half of pereonite 2; coxa provided with a distal projection (see lateral and dorsal view in figure 2); basis slightly shorter than pereonite 2; ischium rectangular; basis and ischium provided with a distal projection laterally; merus rounded; carpus short and triangular; propodus oval, palm ventrally setose, with proximal projection provided with one large grasping spine, and distal projection followed by U-notch; dactylus smooth and elongate. Pereopods (Figs. 2 and 5). Pereopod 3 and 4 tiny, one-articulate, with two setae distally. Pereopod 5 threearticulate, inserted on middle of pereonite 5, medial article provided with four setae; distal article very small, provided with a seta. Pereopod 6 and 7 lacking in holotype, figured and described from paratype female “ a ” (see below) Penes (Fig. 6) large, situated medially, distinctive, oval, length ca. 2 times width. Abdomen (Fig. 6) lacking appendages, provided with setae, a pair of lobes, and a single dorsal lobe with two plumose setae. Paratype female “ a ” (2.9 mm) (Figs. 2, 4 and 6) Similar to male except for following characteristics: head and body smooth lacking dorsal or anterolateral projections; presence of oostegites on pereonites 3 and 4, oostegites setose on pereonite 3 (Fig. 2); flagellum of antenna 1 with 4 articles; gnathopod 2 basis and ischium lacking distal projection, palm of propodus less setose than in male; pereopods 6 and 7 six-articulate, merus, carpus and propodus with a row of ventral setae, propodus with a proximal grasping spine, dactylus curved. Intraspecific variation. The morphological characteristics of the species are rather constant in the specimens examined. Mouthparts were similar in the four specimens dissected, except for the number of setae in the mandibular palp 0 - x-y- 1 with possibilities 0 - 3 - 3 - 1, 0 - 3 - 4 - 1 or 0 - 4 - 4 - 1. Maxilla 1 outer lobe is always provided with seven spines in all specimens. The number of apical setae on the lobes of maxilla 2 also varies between 4 and 6. Regarding the ontogenetic development, the immature males are lacking dorsal tubercles on head and anterolateral projections on pereonites 3 and 4, and only the anterolateral projections on pereonite 2 are present (see figure 2)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC8FF8EFF10FEFFFCD5F9C5.taxon	discussion	Remarks. The genus Liropus was established by Mayer (1890) and, so far, included twelve species: Liropus africanus Mayer, 1920; L. azorensis Guerra-García, 2004; L. cachuchoensis Guerra-García, Sorbe & Frutos, 2008; L. elongatus Mayer, 1890 (type species); L. gracilis Chevreux, 1927; L. guerragarciai Mauro & Serejo, 2015; L. gurui Guerra-García, Chatterjee & Schizas, 2015; L. isabelensis Sánchez-Moyano, García-Asencio & Guerra- García, 2015; L. japonicus Mori, 1995; L. minimus Mayer, 1890; L. minusculus Guerra-García & Hendrycks, 2013; and L. nelsonae Guerra-García, 2003. A morphological comparison among Liropus species is provided by Guerra- García & Hendrycks (2013), Mauro & Serejo (2015) and Sánchez-Moyano et al. (2015), and an illustrated key of the genus can be found in Guerra-García & Hendrycks (2013). Liropus vitucoi sp. nov. can be distinguished from the remaining species of Liropus by the combination simultaneously of the following characters: (1) tiny dorsal tubercles anterolaterally on the head, near the eyes, (2) presence of anterolateral projections in pereonites 2, 3 and 4 in males, (3) third article of the maxilliped palp with distal projection, (4) mandibular palp with setal formula 0 - xy- 1 (from proximal to distal end) (which is unique within the genus Liropus), (5) pereopods 3 and 4 one-articulate and pereopod 5 three-articulate, (6) abdomen without appendages. Although most of the Liropus species are characterised by the presence of one pair of uniarticulate appendages in male abdomen, some species, such as L. minusculus, are provided by two pairs (one of the pairs vestigial), and in other species such as L. cachuchoensis, L. gurui, L. isabelensis, L. japonicus. L. nelsonae and L. vitucoi sp. nov. the single pair is vestigial or absent. Although the number of abdominal appendages could be considered a valid character to separate genera (see McCain, 1968), the gradual degree of variation in the abdomen of Liropus prevents a clear delimitation among different genera. On the other hand, the setal formula of the mandibular palp also shows a high variability within this genus, ranging from a single seta, a formula 1 - x- 1 or 1 - x-y- 1, being in the new species 0 - x-y- 1. Something similar can be reported for the article 3 of the maxilliped palp since in some species there is a distal projection (L. elongatus, L. isabelensis, L. minusculus and L. vitucoi sp. nov.) and other species lack this projection. Furthermore, the number of spines in the outer lobe of maxilla 1, although six in the majority of species, can be 7 (as in L. minusculus or L. vitucoi sp. nov.) or even 5 (as in L. guerragarciai or L. isabelensis). Differences in these mouthparts characters could be also considered at genus level (Mayer, 1903, McCain, 1968). Therefore, a detailed revision of the genus, with redescriptions of the poorly known species, such as L. africanus, L. gracilis, L. minimus and specially L. elongatus, which is the type species of the genus, is mandatory. An exhaustive phylogenetic analysis using morphological and molecular characters would be also necessary to explore the possibility of split the genus Liropus into several different genera, according to this variation in mouthparts and abdomen. At the moment, taking into account that all Liropus species share antennae and body features, reduction of pereopods 3 - 5, structure of gnathopods 1, 2 and pereopods 6 and 7, we have maintained the new species in the same genus until further studies could reveal evidences to split the genus.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC6FF94FF10F9EFFA8AFDF1.taxon	description	(Figs. 7 – 10)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC6FF94FF10F9EFFA8AFDF1.taxon	materials_examined	Type material. Holotype male, 8.7 mm (used for drawings of lateral view, antennae, gnathopods, pereopods 3 – 7, abdomen, mouthparts except maxilla 1) (vial with 70 % ethanol and 2 slides, mouthparts dissected) (MHNUSC 10098); SELVA 2008, DRN- 30 - 1, 27 July 2008, 43 ° 48.511 ’ N, 008 ° 51.393 ’ W, 576 m, carbonate crusts. Paratypes: 1 male (used for drawings of maxilla 1) (dissected, 1 slide) (MHNUSC 10099); DIVA-Artabria II 2008, 27 - EBS, 29 September 2008, 42 ° 45.90 ’ N, 09 ° 41.68 ’ W, 1499 m, muddy bottom; 1 male not dissected (MHNUSC 10100); DIVA-Artabria II 2008, 07 - DRN-P 0 8, 29 September 2008, 43 ° 24.95 ’ N, 09 ° 25.50 ’ W, 470 m, carbonate crusts.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC6FF94FF10F9EFFA8AFDF1.taxon	diagnosis	Diagnosis. Eyes not clearly distinguishable, ommatidia not evident. Two acute anterolateral projections on head. Body dorsally smooth. Anterolateral projections present in pereonites 2, 3 and 4. Flagellum of antenna 1 tenarticulate. Third article of maxilliped palp without distal projection. Mandibular palp with setal formula 0 - x-y- 1 (from proximal to distal end). Basis of gnathopod 2 as long as pereonite 2. Pereopods 3 and 4 one-articulate. Pereopods 5 three-articulate. Abdomen with two pairs of small appendages and pair of lobes	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC6FF94FF10F9EFFA8AFDF1.taxon	etymology	Etymology. The species is dedicated to Dr. Guillermo Díaz-Agras (“ Willy ”) from Universidad de Santiago de Compostela for his friendship and support during the cruises where the caprellids of this study were collected. Dr. Díaz-Agras, together with Prof. Dr. Victoriano Urgorri and Dra. Celia Besteiro are in charge of the Marine Biology Research Station of A Graña (Galicia, Spain).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC6FF94FF10F9EFFA8AFDF1.taxon	description	Description. Holotype male (8.7 mm) Lateral view (Fig. 7). Head with two anterolateral acute projections (see detail in Fig. 7). Eyes not clearly distinguishable, ommatidia not evident. Pereonite 1 fused with head, suture present. Pereonite 2 with a pair of acute anterolateral projections. Pereonite 3 and 4 with anterolateral projections; projections provided with an anterior round end laterally and a smaller projection ventrally. Pereonite 5 the longest. Pereonite 7 the shortest. Gills (Fig. 7). Present at middle of pereonites 3 – 4, elongate, length about 3 times width. Mouthparts (Fig. 8). Mandibles with triturative molar, moderately developed and dentate marginally. Threearticulate palp; distal article of palp the longest, with a setal formula 0 - x-y- 1, being x = 3 and y = 7; left mandible with incisor and lacinia mobilis five-dentate, followed by three accessory blades; incisor of right mandible fivedentate, lacinia mobilis looking like a blade, followed by an additional blade; molar flake small but apparently present. Upper lip without setae. Lower lip without setae; inner lobes small and globose. Maxilla 1 (figured and described from paratype male) outer lobe carrying six spines, palp two-articulate, distal article with four apical spines and one medial seta. Maxilla 2 inner lobe small, shorter than outer lobe, with five apical setae. Maxilliped inner about 1 / 3 of outer plate in length, carrying three apical setae and a small tooth; outer plate elongate, with four setae; palp four-articulate, second article the longest, third article without distal projection, fourth article with rows of very fine setulae. Antennae (Figs. 7 and 9). Antenna 1 ca. 1 / 4 of body length; flagellum 10 - articulate. Antenna 2 clearly shorter than antenna 1; proximal peduncular article with an acute gland cone distally; second peduncular article swollen distally; swimming setae absent; flagellum two-articulate. Gnathopods (Figs. 7 and 9). Gnathopod 1 basis as long as ischium, merus and carpus combined; grasping margin of propodus with a row of very fine setulae, and several setae; two proximal grasping spines, dactylus bifid distally. Gnathopod 2 inserted on anterior half of pereonite 2; coxa well developed with two projections; basis slightly shorter than pereonite 2, provided with a distal projection; ischium rectangular without projection; merus rounded; carpus short and triangular; propodus oval, palm ventrally crenulated, with proximal projection provided with one grasping spine, and mediodistal small U-notch; dactylus provided with a row of very fine setulae. Pereopods (Figs. 7 and 10). Pereopod 3 and 4 tiny, one-articulate, with two setae distally. Pereopod 5 threearticulate, inserted on middle of pereonite 5, medial article provided with four setae; distal article very small, provided with a plumose seta. Pereopod 6 and 7 six-articulate, merus, carpus and propodus with a row of ventral setae, propodus with a proximal projection provided with a grasping spine, and a shorter projection with a smaller grasping spine, dactylus elongate with small setulae. Penes (Fig. 10) large, situated medially, distinctive, oval, length ca 1.5 times width. Abdomen (Fig. 10) with two pairs of small appendages, each appendage provide with single setae, a pair of lobes, and a single dorsal lobe with two plumose setae. Intraspecific variation. No females have been found. The other dissected male showed similar mouthparts to the holotype male. Further collections are necessary to describe the characteristics of the female and intraespecific variation.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFC6FF94FF10F9EFFA8AFDF1.taxon	discussion	Remarks (see also remarks under L. vitucoi sp. nov.). Liropus willyi sp. nov. is close to L. vitucoi sp. nov. but can be easily distinguished mainly by the following characteristics: (1) males of L. willyi sp. nov. are clearly larger than those of L. vitucoi sp. nov. (8.7 mm vs 3.9 mm) (2) anterolateral projections on the head are distinctive and acute in L. willyi sp. nov. while small and rounded in L. vitucoi sp. nov., (3) eyes are not clearly distinguishable, with ommatidia not evident in L. willyi sp. nov., while they are well developed in L. vitucoi sp. nov., (4) abdomen is provided with two pair of small appendages in males of L. willyi sp. nov., while there are no appendages in L. vitucoi sp. nov., (5) the proximal grasping spine of propodus of pereopods 6 and 7 is located on a projection in L. willyi sp. nov., while there is no projection in L. vitucoi sp. nov., (6) the shape of anterolateral projections of pereonites 2, 3 and 4 is different between species, (7) third article of the maxilliped palp has no distal projection in L. willyi sp. nov. but this projection is present in L. vitucoi sp. nov., and (8) maxilla 1 outer lobe is provided with 6 spines in L. willyi sp. nov. and 7 in L. vitucoi sp. nov. Although L. willyi sp. nov. superficially resembles L. cachuchoensis, also distributed in deep sea areas of Northern Iberian Peninsula, both species can be easily distinguished by (1) dorsal projections on male pereonites 3, 4 and 5 are absent in L. willyi sp. nov. and present in L. cachuchoensis, (2) anterolateral projections on pereonites 3 and 4 are present in L. willyi sp. nov. and absent in L. cachuchoensis, (3) the setal formula of the mandibular palp is 0 - x-y- 1 in L. willyi sp. nov., while in L. cachuchoensis only two apical setae are present, (4) pereopod 5 is three articulate in L. willyi sp. nov. (although the tabication is not totally clear), while it is 2 - articulate in L. cachuchoensis, (5) the proximal grasping spine of propodus of pereopods 6 and 7 is located on a projection in L. willyi sp. nov., while there is no projection in L. cachuchoensis, (6) abdominal appendages are present in L. willyi sp. nov., but vestigial in L. cachuchoensis.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDCFF94FF10FD3CFCCDF829.taxon	description	(Fig. 11)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDCFF94FF10FD3CFCCDF829.taxon	materials_examined	Material examined. DIVA-Artabria I 2003: 1 male and 1 female (both used for lateral view figures MHNUSC 25107), 37 males, 58 females, 34 juveniles, EBS 100, 11 September 2003, 43 ° 26.703 ’ N, 008 ° 30.669 ’ W, 103 m, muddy sand. VERTIDOS 2004: 1 male, GA-EBS- 600 - 04, 28 September 2004, 43 ° 36.544 ’ N, 09 ° 03.064 ’ W, 615 m, stones.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDCFF94FF10FD3CFCCDF829.taxon	discussion	Remarks. The genus Pariambus was firstly described as Podalirius by Krøyer (1844) with the type species Podalirius typicus. Haller (1879) described a second species in the genus, Podalirius kroyeri, and Mayer (1882) completed the descriptions of these two species and described a third one, Podalirius minutus. Mayer (1890) transferred P. kroyeri to the genus Pseudolirius and considered P. minutus as a juvenile form of Podalirius typicus (see also Krapp-Schickel, 1993). Sars (1895) reported that Stebbing (1888) had changed the genus Podalirius to Pariambus, since the name Podalirius was already preoccupied. However, Mayer (1903) still used the name Podalirius for this genus and, taking into account that the males of P. typicus were polymorphic, he described three forms: (1) α or armata, (2) β or inermis and (3) γ or cumana. The form armata is the most common variety, widely distributed in the Atlantic Ocean from Scotland to Cape Verde, and Algeria (Mediterranean Sea). The form inermis is distributed along British Isles, English Channel and French Atlantic coasts. The form cumana has been only recorded from Cuma (Italy). Further details on localities distribution are included in Mayer (1903) and McCain & Steinberg (1970). The form armata is characterised by the presence of grasping spines on the propodus of pereopods 6 and 7, together with the presence of a proximal tubercle on the third article of antenna 1 peduncle; the form inermis lacks grasping spines and tubercle in antenna 1; and the form cumana has grasping spines but the antenna 1 tubercle is lacking. The main morphological differences among forms are summarized in Mayer (1903), Chevreux & Fage (1925) and Krapp-Shickel (1993). Specimens from Galician waters seem to belong to the f. armata. In fact, our specimens share similar characteristics with specimens from shallow waters of Ceuta (see Vázquez-Luis et al., 2013: 169, fig. 8): same size, similar gnathopod 2 shape, presence of tubercles on anterior dorsal surface of male head, presence of proximal tubercle on the third article of males antenna 1, similar length and shape of gills, and presence of grasping spines on propodus of pereopods 6 and 7. Further studies are necessary to explore if the different forms described for Pariambus deserve species rank or not. Pariambus typicus is one of the most abundant species, together with Pseudolirius kroyeri and Phtisica marina along shallow soft bottoms of the Southern (Guerra-García et al., 2013), and Northwestern (Moreira & Troncoso, 2007) coasts of Iberian Peninsula.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDCFF94FF10FD3CFCCDF829.taxon	distribution	Distribution. North Sea, Atlantic Coast from Britain to Cape Verde including Macaronesia, Mediterranean Sea (McCain & Steinberg, 1970; Krapp-Schickel, 1993).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF96FF10FF24FBBFFAE8.taxon	description	(Figs. 12 – 15)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF96FF10FF24FBBFFAE8.taxon	materials_examined	Material examined. SELVA 2008: 1 male (used for drawings of lateral view, antennae and gnathopods) (2 slides, mouthparts dissected) (MHNUSC 25108), 1 juvenile male (used for drawings of pereopods 6 and 7, abdomen and mouthparts (vial with 70 % ethanol and 2 slides, mouthparts dissected) (MHNUSC 25109); AT- 12, 18 July 2008, 44 ° 15.367 ’ N, 008 ° 30.438 ’ W, 2516 m, stones with dead corals.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF96FF10FF24FBBFFAE8.taxon	discussion	Remarks. The genus Parvipalpina was erected by Stephensen (1944) with the description of Parvipalpina verrucosa, based on a male specimen collected from the SW of Iceland at 1505 m. To our knowledge, this is the first record of the species after the original description. Although the most important characters are clearly reported by Stephensen (1944) in his description and figures, details of gnathopods, mouthparts and abdomen were lacking so we provide full figures of the species in the present study. Our specimens are in good agreement with the description of Stephensen (1944) in the following diagnostic characteristics: (1) presence of accessory flagellum on antenna 1, (2) head, pereonite 1 and 7 smooth but pereonites 2 to 6 densely covered by tiny tubercles, (3) pereopods 3 and 4 absent (only a seta is present), (4) pereopod 5 reduced to a bud-like process, located by the middle of pereonite 5, and tipped by a strong seta, (5) abdomen without appendages and (6) pereopods 6 and 7 with a unique shape (see fig. 36 in Stephensen, 1944 and Fig. 15 in the present study) and propodus provided with grasping spines The main differences among specimens from Iceland and those from the present study are (1) eyes are not clearly distinguished in Galician specimens and (2) the suture and line between head and pereonite 1 is not evident in Galician specimens and is marked in the material figured by Stephensen. However, our material contains only one juvenile and 1 subadult male, so it is possible that this character is not totally developed yet. JMGG studied extensive collections from Iceland waters, the type locality of the species, in the context of inter-Nordic BIOICE project (Guerra-García, unpublished data) and this species was not present. The BIOICE project, aimed at a faunistic-zoogeographical survey of the benthic invertebrate fauna in the Icelandic exclusive economic zone, covered a period from 1992 to 2002, depths from 50 to 3000 m, including 1300 samples from 530 localities. The collections contained more than 2500 caprellid specimens belonging to 14 different caprellid species (Guerra- García, unpublished data), but no specimens of P. verrucosa were found, suggesting that it is an occasional species. Taking into account the scarcity of studied material, it is necessary the collection of further material, both full adult males, and females, since detailed figures of the females are still lacking for this species.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF96FF10FF24FBBFFAE8.taxon	distribution	Distribution. Iceland (Stepehensen, 1944). NW Iberian Peninsula (present study).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF92FF10FAC4FCF4F867.taxon	description	(Fig. 16)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF92FF10FAC4FCF4F867.taxon	materials_examined	Material examined. SELVA 2008: 3 males, 3 females, 1 juvenile (1 male and 1 female used for lateral view figures MHNUSC 25110), DRN- 10 - 2 B, 44 ° 06.282 ’ N, 008 ° 44.606 ’ W, 433 m, muddy fine sand.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF92FF10FAC4FCF4F867.taxon	discussion	Remarks. Parvipalpus major was described by Carausu (1941) based on material from the Mediterranean coast of France (Banyuls-sur-Mer) and Monaco, and was considered as Mediterranean endemic by Krapp-Shickel (1993). Laubitz & Sorbe (1996) redescribed the species based on material from North Atlantic (Bay of Biscay). The Mediterranean specimens of Carausu (1941) were found from 0.5 to 300 m depth, and the Atlantic material of Laubitz & Sorbe (1996) were collected from 175 – 924 m. Corbari et al. (2005) conducted a detailed video study of this species where they showed morpho-functional and behavioural adaptations to deep-sea bottoms. Our male specimens show the same morphology than that described by Laubitz & Sorbe (1996) and females are also in good agreement with the original figures and description of Carausu (1941); the dorsal surface of male pereonites is smooth while it is full of tiny tubercles in females. Although morphological evidences seem to demonstrate that the species inhabits both Atlantic and Mediterranean waters, further molecular studies could aid to explore if Mediterranean and Atlantic populations belong to the same species, or if, otherwise, there is enough genetic differentiation to consider them to belong to different cryptic species. So far, the genus comprises 5 described species: P. capillaceus (Chevreux, 1888), P. linea Mayer, 1890, P. major Carausu, 1941, P. onubensis Guerra- Gacía, García-Asencio & Sánchez-Moyano, 2001 and P. colemani Guerra-García, 2003. The five species are morphologically compared in Guerra-García (2003). McCain & Steinberg (1970) pointed out that P. linea could be synonym on P. capillaceus. Parvipalpus linea has been found so far only in the Mediterranean, P. colemani, P. onubensis and P. capillaceous only in Atlantic waters, while P. major seems to present Atlanto-Mediterranean distribution.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFDEFF92FF10FAC4FCF4F867.taxon	distribution	Distribution. Mediterranean (see Krapp-Schickel, 1993). Northwestern Atlantic coasts of Iberian Peninsula and Bay of Biscay (Laubitz & Sorbe, 1996; present study).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD0FF99FF10FB9FFE1DFE1D.taxon	description	(Figs. 17 – 21)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD0FF99FF10FB9FFE1DFE1D.taxon	materials_examined	Material examined. SELVA 2008: 1 juvenile male (used for drawings of lateral and dorsal view, antennae, gnathopod 2, pereopods 3 – 5, mouthparts and abdomen) (vial with 70 % ethanol and 2 slides, mouthparts dissected) (MHNUSC 25111), 1 female (used for drawings lateral and dorsal view, pereopods 5 – 7, gnathopods and abdomen (vial with 70 % ethanol and 2 slides, mouthparts not dissected) (MHNUSC 25112), AT- 13, 17 July 2008, 44 ° 06.496 ’ N, 008 ° 23.522 ’ W, 337 m, rocky bottom (?).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD0FF99FF10FB9FFE1DFE1D.taxon	discussion	Remarks. The genus Pedoculina was established by Carausu (1940) who described Pedoculina bacescui based on a single female from sands of Posidonia oceanica at 50 m deep in Monaco. Kaim-Malka (1983) described Pedunculocaprella antennata from Marseille (France). Krapp-Shickel (1993) and Laubitz (1993) synonymised P. antennata with P. bacescui. Sánchez-Moyano et al. (1995) described the species Pedoculina garciagomezi based on males and females collected from Algeciras (south side of the Strait of Gibraltar). Guerra-García & Takeuchi (2002) confirmed also the presence of P. garciagomezi in Ceuta (north side of the Strait of Gibraltar). As no males of P. bacescui were available, only the females of both species could be compared (see Sánchez-Moyano et al., 1995 for details). The main differences among the females of the two species are: (1) flagellum of antenna 1 twoarticulate in P. bacescui and one-articulate in P. garciagomezi, (2) antenna 2 slightly longer than antenna 1 in P. bacescui and slightly shorter in P. garciagomezi, (3) pereopod 5 four-articulate in P. bacescui and three-articulate in P. garciagomezi, (4) dactylus of gnathopod 1 with only one ventral projection in P. garciagomezi while in P. bacescui is profusely serrate with several projections. Although Sánchez-Moyano et al. (1995) reported that P. garciagomezi is provided with two pairs of acute projections on pereonite 3 and P. bacescui only with one pair, figures of the original description (see also Krapp-Schickel, 1993, Kaim-Malka, 1983) show also two pairs of acute projections on pereonite 3 of P. bacescui, so this does not seem a valid difference among the species. During the present study only a juvenile male and a female were found. Most of the characteristics (two-articulate flagellum of antenna 1, pereopod 5 four-articulate in adult female, antenna 2 longer than antenna 1 and dactylus serrate) agree with the description of P. bacescui. In the juvenile male, the pereopod 5 is only three-articulate so it could be sexual dimorphism in the number of articles of pereopod 5. However, this should be confirmed in the future if adult males are found. The two specimens found are fully figured as baseline for future comparisons if more Atlantic material is found. So far, P. bacescui was considered as a Mediterranean endemic; therefore, the present study would enlarge the distribution area of the species to Atlantic waters. Future morphological and molecular studies based on additional material are advisable to dilucidate the distribution area of this species.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD0FF99FF10FB9FFE1DFE1D.taxon	distribution	Distribution. Mediterranean (Monaco, Marseille) (Carausu, 1941, Kaim-Malka, 1983). Atlantic (NW Iberian Peninsula) (present study).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD1FF99FF10FA9DFB85F98F.taxon	description	(Fig. 23)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD1FF99FF10FA9DFB85F98F.taxon	materials_examined	Material examined. DIVA-Artabria I 2002: 1 male, EBS- 200 (used for lateral view figure), 8 September 2002, 43 ° 40.192 ’ N, 008 ° 43.760 ’ W, 212 m, muddy sand. DIVA-Artabria I 2003: 1 female, AT- 150, 14 September 2003, 43 ° 34.116 ’ N, 008 ° 36.535 ’ W, 149 m, sand (?). SELVA 2008: 3 females, DRN- 20, 17 July 2008, 43 ° 58.719 ’ N, 008 ° 15.691 ’ W, 233 m, sand; 4 males, 3 females (1 female used for lateral view figures) (1 male, 1 female MHNUSC 25114), DRN- 20, 17 July 2008, 43 ° 58.719 ’ N, 008 ° 15.691 ’ W, 233 m, sand.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD1FF99FF10FD3DFE8DFB28.taxon	description	(Fig. 22)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD1FF99FF10FD3DFE8DFB28.taxon	materials_examined	Material examined. DIVA-Artabria I 2002: 2 males, DRN- 600, 11 September 2002, 43 ° 48.340 ’ N, 008 ° 51.485 ’ W, 688 m rocky bottom. DIVA-Artabria I 2003: 2 males, AT- 1000, 16 September 2003, 43 ° 53.847 ’ N, 008 ° 57.324 ’ W, 1004 m, rocky bottom with gorgonaceans; 1 male, DRN- 1000, 16 September 2003, 43 ° 53.575 ’ N, 008 ° 56.868 ’ W, 974 m, sand and small boulders. SELVA 2008: 2 males, AT- 11 - 2, 18 July 2008, 44 ° 07.495 ’ N, 008 ° 46.999 ’ W, 416 m, rocks and carbonate crusts; 1 male, 2 females, DRN- 7, 19 July 2008, 44 ° 11.652 ’ N, 008 ° 58.152 ’ W, 1106 m, sand with corals; 1 male, DRN- 10 - 2, 19 July 2008, 44 ° 04.648 ’ N, 008 ° 47.849 ’ W, 484 m, rocky bottom; 1 female, 1 juvenile, DRN- 15 - 1, 23 July 2008, 43 ° 58.356 ’ N, 008 ° 52.149 ’ W, 1064 m, gravelly mud; 1 male, DRN- 10 - 2 B, 44 ° 06.282 ’ N, 008 ° 44.606 ’ W, 433 m, muddy fine sand; 1 female, DRN- 33, 23 July 2008, 43 ° 54.14 ’ N, 008 ° 57.312 ’ W, 1001 m, muddy sand; 1 juvenile, DRN- 30 - 1, 23 July 2008, 43 ° 48.553 ’ N, 008 ° 51.397 ’ W, 612 m, muddy sand with carbonate crusts; 1 male, DRN- 15 - 2 B, 24 July 2008, 43 ° 55.886 ’ N, 008 ° 54.846 ’ W, 933 m, mud (?); 13 males, 8 females, 61 juveniles (1 male and 1 female used for lateral view figures), DRN 15 - 2, 24 July 2008, 43 ° 55.934 ’ N, 008 ° 54.849 ’ W, 933 m, mud with dead corals; 3 males, 3 females, 5 juveniles, (1 male, 1 female, MHNUSC 25113), DRN- 16 - 1, 21 July 2008, 43 ° 56.51 ’ N, 008 ° 49.869 ’ W, 839 m, carbonate crusts.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFD1FF99FF10FD97FEF3FD92.taxon	description	(Figs. 22, 23)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA4FF10FBAFFC6FFABA.taxon	diagnosis	Diagnosis. Flagellum of antenna 1 more than 2 - articulate. Flagellum of antenna 2 two-articulate, swimming setae absent. Gills on pereonites 3 and 4. Pereopods 3 and 4 uni-articulate. Pereopod 5 five-articulate. Pereopods 6 – 7 sixarticulate. Mandible molar present; palp 3 - articulate, setal formula for distal article 1 - x- 1 (although it could be also considered 1 - x- 0 from proximal to distal end since the distal seta is not as long as the proximal one). Outer plate of maxilliped longer than inner plate. Abdomen with a pair of vestigial appendages	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA4FF10FBAFFC6FFABA.taxon	materials_examined	Type species. Selvacaprella jimenoi sp. nov.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA4FF10FBAFFC6FFABA.taxon	etymology	Etymology. The species name refers to “ A Selva ”, the interesting deep-sea area located in the Northwest of Galicia where most of the specimens of this new genus were collected.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA3FF10FA79FBAAFC90.taxon	description	(Figs. 24 – 29)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA3FF10FA79FBAAFC90.taxon	materials_examined	Type material. Holotype male, 5.7 mm (used for drawings of lateral and dorsal view, antennae, gnathopods, pereopods 3 – 7, abdomen and mouthparts, except for the maxilliped which was in poor condition and it was figured from male AT- 1000) (vial with 70 % ethanol and two slides, mouthparts dissected) (MHNUSC 10101); SELVA 2008, DRN- 15 - 2, 24 July 2008, 43 ° 56.478 ’ N, 008 ° 54.199 ’ W, 933 m, muddy bottom. Paratype “ a ” female 4.8 mm (used for drawings of lateral view, gnathopod 2 and abdomen) (vial with 70 % ethanol, mouthparts not dissected) (MHNUSC 10102); SELVA 2008, DRN- 15 - 1, 23 July 2008, 43 ° 58.356 ’ N, 008 ° 52.149 ’ W, 1064 m, gravelly mud. Paratypes “ b ” (1 male, not dissected) and “ c ” (1 juvenile, not dissected, used for lateral view figure), (MHNUSC 10103); SELVA 2008, DRN- 15 - 1, 23 July 2008, 43 ° 58.356 ’ N, 008 ° 52.149 ’ W, 1064 m, gravelly mud. Additional material examined. 1 male (dissected), 1 female (premature, used for lateral view figures and dissected), 1 juvenile, DIVA-Artabria I 2002, AT- 1000, 0 9 September 2002, 43 ° 57.248 ’ N, 008 ° 54.133 ’ W, 1132 m, stones and gravel. Specimens kept in first author’s personal collection.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA3FF10FA79FBAAFC90.taxon	diagnosis	Diagnosis. Eyes present, although ommatidia not distinguishable. Head and pereonites dorsally smooth, although provided with abundant setae and very tiny tubercles. Anterolateral projections present on pereopod 2, 3 and 4 in males, and absent in females (only very short antelateral projections on pereonite 2). Gnathopod 1 with two grasping spines. Basis of gnathopod 2 as long as pereonite 2. Pereopod 3 and 4 uni-articulate. Pereopod 5 (morphologically different to pereopod 6 and 7) five-articulate, distal article reduce to a very small cone (tabication between two distal articles not totally complete). Molar of the mandibles fully developed. Mandibular palp distal article with a setal formula 1 - x- 1, being x = 2 or 3. Maxilla 1 outer lobe carrying five spines. Maxilliped palp third article without distal projection. Abdomen with one pair of vestigial appendages.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA3FF10FA79FBAAFC90.taxon	etymology	Etymology. The species is dedicated to our colleague and friend Dr. Antonio Jimeno Fernández, for his valuable contribution to the knowledge of amphipods from the Iberian Peninsula.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA3FF10FA79FBAAFC90.taxon	description	Description. Holotype male (5.7 mm) Lateral view (Fig. 24). Head lacking projections, eyes present but ommatidia not distinguishable. Pereonite 1 fused with head, suture present, clearly marked. Head and pereonite 1 smooth. Pereonite 2 with large anteroateral projections near the coxae. Pereonites 3 and 4 provided with two anterolateral projections proximally. Pereonites 2 – 6 with numerous dorsal setae and tiny tubercles. Pereonite 5 the longest. Pereonite 7 the shortest. Gills (Fig. 24). Present at middle of pereonites 3 – 4, elongate, length about 4 times width. Mouthparts (Fig. 26). Mandibles with molar; three-articulate palp; distal article of palp with a setal formula 1 - x- 1, being x = 2 (left mandible) and x = 3 (right mandible), medial article provided with a single setae; left mandible with incisor and lacinia mobilis five-dentate, followed by two accessory blades; incisor of right mandible fivedentate, lacinia mobilis looking like a blade, followed by three more blades; no sign of molar flake. Upper lip without setae, with rectangular lobes. Lower lip without setae; inner lobes oval. Maxilla 1 outer lobe carrying five spines, palp two-articulate, distal article with four apical spines and one medial seta. Maxilla 2 inner lobe small, shorter than outer lobe, both with four apical setae. Maxilliped (figured and described from male AT- 1000) inner plate small and rectangular, about 1 / 3 of outer plate in length, carrying two setae, one of them plumose; outer plate oval, with five setae; palp four-articulate, scarcely setose, third article lacking distal projection, distal article (dactylus) not curved. Antennae (Figs. 24 and 27). Peduncle of antenna 1 of the same length that flagellum, provided with setae, some of them plumose; second article the longest; flagellum 6 - articulate. Antenna 2 longer than peduncle of antenna 1; proximal peduncular article with a well developed acute gland cone distally; swimming setae absent; flagellum two-articulate. Gnathopods (Figs. 24 and 27). Gnathopod 1 basis as long as ischium, merus and carpus combined; grasping margin of propodus smooth; two proximal grasping spines, dactylus bifid distally. Gnathopod 2 inserted on the anterior end of pereonite 2; basis as long as pereonite 2, without distal projection; ischium small rectangular; merus rounded; carpus short and triangular; propodus of gnathopod 2 with a proximal grasping spine followed by Unotch; dactylus smooth and elongate. Pereopods (Figs. 24 and 28). Pereopod 3 and 4 uni-articulate, elongate provide by three distal plumose setae. Pereopod 5 attached to the middle of pereonite, elongate and provided with long setae, morphologically different to pereopod 6 and 7, five-articulate, distal article reduce to a very small cone (tabication between two distal articles not totally complete). Pereopod 6 and 7 attached to posterior end of pereonites, six-articulate, basis without carina, ischium short and rectangular, merus, carpus and propodus palm carrying row of robust plumose setae, propodus with a proximal projection carrying two grasping spines, dactylus elongate and minutely serrated ventrally. Pereopod 7 slightly more robust than pereopod 6. Penes (Fig. 29) large, situated laterally, distinctive, oval, length ca 2 times width. Abdomen (Fig. 29) with a pair of very reduced (almost vestigial) appendages, with two lateral globose lobes provided with bunches of setae and a single dorsal lobe provided with two plumose setae. Paratype female “ a ” (4.1 mm) (Figs. 24, 27 & 29). Similar to male except for following characteristics: presence of oostegites on pereonites 3 and 4, both setose. Pereonite 2 with short anterolateral projections ventrally. Pereonite 3 and 4 without projections. Flagellum of antenna 1 five-articulate. Gnathopod 2 propodus with a serrated margin between the grasping spine and the Unotch. Intraspecific variation. The morphological characteristics of mouthparts are similar in the three specimens dissected, with the only difference in that the number of setae in the lobes of maxillae 2 can be 4 or 5. Flagellum of antenna 1 in juveniles (see juvenile AT- 1000, Fig. 25) is two-articulate and the anterolateral projections of pereonites 2, 3 and 4 are lacking in juvenile specimens and premature females. In the premature female and juvenile the eyes are undistinguishable and the suture between head and pereonite 1 is more marked than in full adult specimens. This complete suture resembles that present in the genera Aeginella Boeck, 1861, Protellina Stephensen, 1944, Protellopsis Stebbing, 1888, Protoaeginella Laubitz & Mills, 1972 or Thorina Stephensen, 1944 among others.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFECFFA3FF10FA79FBAAFC90.taxon	discussion	Remarks. The new genus superficially resembles the genus Pedoculina, with similar body shape, having pereopod 3 and 4 provided with one elongate article, pereopod 5 elongate and reduced (4 articles in Pedoculina and 5 in the new genus) and abdomen with lack of clear appendages. The main difference between the two genera is that Selvacaprella gen. nov. has mandibular palp while Pedoculina has no palp. Pereopod 5 is also five-articulate with a minute distal article in the genus Abysicaprella. However both genera clearly differs mainly in: (1) pereopods 3 and 4 are two-articulate in Abysicaprella and uniarticulate in Selvacaprella gen. nov., (2) outer lobe of maxilla 1 has 7 spines in Abysicaprella and apparently 5 in Selvacaprella gen. nov., (3) setal formula is 1 - x-y- 1 in Abysicaprella and, apparently, 1 - x- 1 in Selvacaprella gen. nov., and (4) Abysicaprella is provided with two large two-articulate abdominal appendages, which are vestigial in the new genus. A weak and elongate pereopod 5 is also present in the genus Aciconula, Propodalirius, Borikenella and some species of Deutella among others, but the new genus can be clearly differentiated from these ones by the combination of the following characters at the same time: pereopod 3 and 4 uni-articulate, pereopod 5 five-articulate, mandible with molar and mandibular palp, and abdominal appendages very reduced. The new genus is also close to the genus Liropus in body shape, antennae, pereopod 3 and 4 uni-articulate and mouthparts. However, in the genus Liropus pereopod 5 is very reduced (with a maximum of 3 articles) and the new genus is provided with a five-articulate pereopod 5.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFEBFFADFF10FC45FAB4FC05.taxon	description	(Fig. 30)	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFEBFFADFF10FC45FAB4FC05.taxon	materials_examined	Material examined. DIVA-Artabria I 2002: 1 male, AT- 150, 8 September 2002, 43 ° 34.937 ’ N, 008 ° 35.386 ’ W, 155 m sandy mud; 1 juvenile, EBS- 150, 14 September 2002, 43 ° 33.852 ’ N, 008 ° 36.830 ’ W, 149 m, sand (?). DIVA- Artabria I 2003: 4 males, EBS- 150, 14 September 2003, 43 ° 34.127 ’ N, 008 ° 36.562 ’ W, 152 m, muddy sand. VERTIDOS 2004: 1 male, CA-EBS- 150 - 04, 18 September 2004, 42 ° 50.507 ’ N, 009 ° 25.773 ’ W, 151 m, muddy sand; 1 female, AG-EBS- 150 - 04, 17 September 2004, 42 ° 30.391 ’ N, 009 ° 19.517 ’ W, 148 m, muddy sand; 1 male, CH-EBS- 150 - 04, 21 September 2004, 42 ° 15.780 ’ N, 009 ° 10.500 ’ W, 150 m, sand. APLACOPHORA 2006: 4 males, Est. 1 EBS- 160 - 06, 0 4 July 2006, 43 ° 36.686 ’ N, 008 ° 33.855 ’ W, 166 m, sand; 4 males, Est. 2 EBS- 140 - 06, 0 4 July 2006, 43 ° 33.211 ’ N, 008 ° 29.499 ’ W, 137 m, sand. SELVA 2008: 1 male, EBS- 20, 17 July 2008, 43 ° 58.84 ’ N, 008 ° 15.625 ’ W, 237 m, sand with mud; 5 males, 8 females, 3 juveniles (1 male and 1 female used for lateral view figures MHNUSC 25115), AT- 13, 17 July 2008, 44 ° 06.496 ’ N, 008 ° 23.522 ’ W, 337 m, carbonate crusts mixed with sediment; 1 female, 1 juvenile, AT- 14, 17 July 2008, 44 ° 00.99 ’ N, 008 ° 32.91 ’ W, 344 m, sand; 1 female, DRN- 11 - 3 19 July 2008, 44 ° 06.28 ’ N, 008 ° 44.48 ’ W, 440 m, sand; 1 male, DRN- 11 - 4, 19 July 2008, 44 ° 07.628 ’ N, 008 ° 45.871 ’ W, 412 m, sand; 1 male, 1 female, DRN- 20, 17 July 2008, 43 ° 58.719 ’ N, 008 ° 15.691 ’ W, 233 m, sand. DIVA-Artabria II 2008: 5 males, 10 females, 7 juveniles, 07 - DRN-P, 20 September 2008, 43 ° 24.95 ’ N, 09 ° 25.50 ’ W, 490 m, carbonate crusts. FORSAGAL 2009: 1 male, 18 DRN, 24 February 2009, 42 ° 23.069 ’ N, 09 ° 24.557 ’ W, 455 m, sand.	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFEBFFADFF10FC45FAB4FC05.taxon	discussion	Remarks. Guerra-García et al. (2010 a) and Zeina et al. (2015) pointed out that the presence of developed pereopods 3 and 4 makes the morphological recognition of this species easy and that in many ecological studies of Mediterranean and Atlantic waters, specimens have probably been assigned to this species just on the basis of pereopod 3 and 4 fully developed (which is a very distinctive character) without careful examination of other characters of abdomen and mouthparts. Specimens from deep-sea Galician waters show similar morphological characteristics to specimens previously described from shallow waters of Mediterranean (e. g. Krapp-Shickel, 1993) or Atlantic (e. g. Zeina et al., 2015). This species has been reported to be collected in plankton tows (see McCain & Steinberg, 1970). Other species reported as abundant from plankton samples, such as Caprella equilibra (Takeuchi & Sawamoto, 1998; Guerra-García, unpublished data) also show wide distribution, so, probably, a higher resistance and capabilities to survive longer in water column could naturally contribute to a higher natural dispersal of some caprellid species. Furthermore, rafting (organism travelling on floating items over the sea surface which may be transported to areas which they might not have reached otherwise) has been reported for many caprellid species (see Martin & Gutow, 2005) and this factor could also explain the wider distribution of some species. Together with these natural mechanisms, ship fouling is also an important factor to explain why some caprellid species show wide distribution in spite of having direct developing and lack planktonic larvae. In any case, although Phtisica marina seems to be widely distributed along both shallow and deeper waters along Mediterranean and Atlantic, a detailed morphological revision of abundant material, together with molecular studies and rearing experiments in laboratory are also necessary to assess if all the Atlantic and Mediterranean specimens belong to the same species or if we are facing to cryptic species of a complex, as described for other species such as Caprella acanthifera [sensu lato] (see Krapp-Shickel & Vader, 1998; Zeina et al., 2015), Caprella penantis [sensu lato] (see Cabezas et al., 2013 a, b), Pseudoprotella phasma [sensu lato] (Zeina et al., 2015; present study) or Caprella californica [sensu lato] (Takeuhi & Oyamada, 2013; Ros et al., 2014; Cabezas et al., 2014).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
03BE87ACFFEBFFADFF10FC45FAB4FC05.taxon	distribution	Distribution. Mediterranean Sea, Atlantic Ocean. Indopacific (see Krapp-Schickel, 1993; Laubitz, 1995).	en	Guerra-García, José M., Tato, Ramiro, Moreira, Juan (2018): Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species. Zootaxa 4532 (2): 151-202, DOI: 10.11646/zootaxa.4532.2.1
