taxonID	type	description	language	source
32759B414F2F247BFDCCFE1DFE7DFB5B.taxon	diagnosis	Diagnosis Head not elongate, subrectangular; eyes absent; antennae without calceoli; antenna 1 peduncle article 2 longer than 1, article 3 the shortest; accessory flagellum articles 1 – 2 subequal in length, elongate, article 3 vestigial; pleonal and first two urosomal segments dorsally toothed; coxae 1 – 7 posteroventral notched, coxa 4 without posterior lobe; gnathopods palmar margin oblique; gnathopod 2 larger and stronger in male; uropod 1 peduncle with robust distal seta, an interramal spiniform process; uropod 3 biramous, outer ramus article 2 longer than inner, inner ramus subequal in length to peduncle width; epimera with posteroventral point; telson deeply cleft, each inner lobe margin with 1 robust seta midway; apical setae absent.	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F247BFDCCFE1DFE7DFB5B.taxon	type_taxon	Type species Bathypisella spinicaudata sp. nov. by monotypy (new combination, here selected; female gender).	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F247BFDCCFE1DFE7DFB5B.taxon	etymology	Etymology Named for the combination of Bathy (a prefix derived from the Greek ‘ bathus’ meaning ‘ deep’) with the suffix pisella (a Latin name from Eriopisella, the type genus of the second group of Eriopisidae).	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F2472FE0FFAEAFE3CFDCA.taxon	description	(Figures 2 – 7)	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F2472FE0FFAEAFE3CFDCA.taxon	materials_examined	Material examined Holotype. Adult female, 5.0 mm total length (CNCR 36449); collected from the type locality; 884 m depth; 20 August 2005; coll., María Teresa Herrera-Dorantes. Paratype. Male 4.5 mm total length (CNCR 36450), same data as holotype. Other material. Juvenile male, 2.5 mm total length (CNCR 36451), same data as holotype. Type locality. SW Gulf of Mexico, OC- 2005 - Xcambó- 2, cruise station 57 _ 17 (19.000 ° N, 94.500 ° W). The material was collected from a soft bottom characterised by silty-clay sediments of terrigenous origin, at 884 m depth.	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F2472FE0FFAEAFE3CFDCA.taxon	diagnosis	Diagnosis The same as for the genus.	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F2472FE0FFAEAFE3CFDCA.taxon	description	Description	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F2472FE0FFAEAFE3CFDCA.taxon	materials_examined	Holotype. Adult female (CNCR 36449), total length 5.0 mm. Body (Figure 2). head as long as segments 1 – 2 of peraeonal combined, rostrum reduced; lateral cephalic lobe rounded; eyes absent. Antenna 1 (Figure 2) peduncle article 1 as long as head, 2 short setae on anterodistal corner, a curved seta subdistally in ventral margin, article 2 the longest, 1.2 x longer than article 1, article 3, 0.6 x as long as 2, flagellum 14 – articulate; accessory flagellum 3 – articulate, slightly longer than first two articles of flagellum, article 3 vestigial; antenna 2 (Figure 2) article 5, 1.3 x longer than 4; flagellum 7 – articulate, of which 3 articles are long and 4 short; cone antennal gland well developed, half the length of the basal article. Peraeonal segments 1 – 7 dorsally smooth; pleonal segments 1 – 3 dorsally toothed, biggest dorsal tooth on urosomal segment 1, smallest on segment 2, segment 3 smooth. Epimera poorly developed, very low, epimerum 3 posteroventral margin subacute. Mouthparts (Figure 3). upper lip (Figure 3 a) ovoid, with small cut ventrally. Lower lip (Figure 4 b) outer plate truncated dorsally, inner plate not well developed, mandible lobe poorly concave. Maxilla 1 (Figure 3 c) inner plate subtriangular, acute with 1 tiny seta distally; outer plate with 7 bifid distal setae; palp 2 – articulate, article 1 shorter than 2, article 2 with 7 short and 4 long distal setae. Maxilla 2 (Figure 3 d) outer plate larger than inner, with 12 distal simple setae; inner plate with 25 long, and 4 short setae, no facial setae. Mandibles (Figure 3 e, f), strong triturative molar inserted basally, palp 3 – articulate, article 3 shorter than 2, 2 long distal setae, 5 – 6 accessory setae, left mandible lacinia mobilis with 4 teeth, 6 incisors (Figure 3 f); right mandible lacinia mobilis with 3 teeth, 5 incisors (Figure 3 e). Maxilliped (Figure 3 g) inner plate half the length of outer, with 3 odontoid distal teeth, 8 setae; outer plate with 4 odontoid teeth, 5 setae; palp 4 – articulate, dactylus nail present. Gnathopod 1 (Figure 4 a). coxa quadrangular, notched posteroventrally, 4 simple setae; basis 0.8 x as long as ischium, merus, and carpus combined, 4 long anterior margin setae basally, 3 distally, 11 long posterior margin setae; ischium subequal in length to merus, 6 subdistal posterior setae; merus 9 short and 4 long posterior margin setae; carpus subtriangular, as long as propodus, 11 long setae on anterior margin and 18 arranged in a tuft on posterior margin; propodus ovoid, 5 long setae on anterior margin, 3 long and 2 short distal setae, palmar margin oblique, 4 long and several short setae on palmar margin; dactylus slightly longer than palmar margin. Gnathopod 2 (Figure 4 b) coxa quadrangular, similar to coxa 1, notched posteroventrally; basis as long as ischium, merus, and carpus combined, 5 short setae on anterior margin, 11 on posterior margin; ischium as long as merus, 2 setae on posterior margin, 3 long and 3 short setae on merus posterior margin; anterior carpus margin with 7 setae, 6 on posterior margin; propodus anterior margin with 4 long and 4 short setae, small lobe of 5 long setae distally; dactylus half the length of palm, palmar margin oblique, with 1 long and several tiny setae, a strong robust seta on palmar angle; oostegite thin, as long as basis, curved upward; gill absent. Pereopod 3 (Figure 5 a). coxa rectangular, ventral margin convex, notched posteroventrally; basis as long as ischium and merus combined, 13 posterior margin equidistant setae; ischium posteroventral corner with 2 short setae; merus with 6 anterior margin setae, 6 on posterior margin; carpus with an anterodistal seta, 5 on posterior margin; propodus anterior margin with 3 setae, a tuft of 6 setae distally, 8 setae on posterior margin; dactylus 0.6 x as long as propodus, a midway posterior seta; oostegite curved upward, as long as basis; gill saccular, 0.8 x as long as basis. Pereopod 4 (Figure 5 b) coxa quadrangular, without posteroventral lobe, posteroventral margin notched; basis as long as ischium and merus combined, anterior margin with long and short setae; ischium with a posterodistal seta; merus with 2 anterior marginal and 2 anterodistal setae, 6 short posterodistal setae and a long posterodistal seta; carpus 0.8 x as long as propodus, an anterodistal seta, 2 long and 2 short setae posteriorly; propodus 4 long anterodistal setae, 4 posterior and 2 subdistal setae; dactylus 0.3 x as long as propodus, short and curved; oostegite as long as basis, curved; gill 0.9 x as long as basis. Pereopod 5 (Figure 5 c) coxa sub-quadrangular, a small posteroventral notch; basis tapering distally, 6 robust setae on basis anterior margin, 4 intermediate setae and 1 robust seta distally, posterior margin serrate, with tiny seta; ischium with 2 anterior setae, a posterior seta; merus 0.6 x as long as basis; resting articles missing; oostegite 0.6 x as long as basis; gill half the length of basis. Pereopod 6 (Figure 6) coxa quadrangular, shorter than 5, slightly notched on posteroventral corner; basis tapering distally, as long as ischium and merus combined, margins serrate, anterior with robust setae, tiny setae posteriorly; ischium with an anterodistal seta; merus 1.3 x longer than carpus, margins with 3 medial and 2 distal setae; carpus 0.8 x as long as propodus, 4 setae on anterior margin, 2 anterodistal, 1 posteriorly, and 2 posterodistal; propodus with 7 setae on anterior margin, 4 distally; dactylus half the length of propodus, 1 simple inner seta. Pereopod 7 (Figure 5 e) coxa small, slightly notched posteroventrally; basis tapering distally, as long as ischium and merus combined, margins serrate, anterior with robust setae, tiny setae posteriorly; merus with 3 robust setae on both margins, 1 robust seta on anterior corner and another on posterior corner; rest of articles missing. Uropod 1 (Figure 6 a). peduncle 1.2 x longer than rami, anterior margin with 1 robust basal seta and 3 short setae, 1 robust seta on posterior margin, an interramal spiniform process distally; rami subequal in length; inner ramus with 3 distal setae, 4 marginal setae; 3 marginal and 2 distal on outer ramus. Uropod 2 (Figure 6 b) peduncle half the length of outer ramus, 2 short robust interramal setae, another minute distal seta; 4 marginal setae on outer ramus, 3 long distal setae; 3 long distal setae on inner ramus, other 4 marginal. Uropod 3 (Figure 6 c) peduncle almost half the length of basal article outer ramus, 3 distal anterior setae, another distal posteriorly; outer ramus article 1 anterior margin with 4 couplets of 2 – 4 robust setae, 2 couplets of 2 setae on posterior margin, 5 setae distally; article 2 devoid of setae, almost 0.3 x as long as article 1; inner ramus subequal in length to peduncle wide, cone-shaped. Telson (Figure 6 d) deeply cleft, each lobe tapering to an acute tip, 1 inner submarginal mid-way robust seta, dorsal surface smooth. Paratype. Adult male (CNCR 36450), total length 4.5 mm. Body similar to that of the female. However, some differences included: gnathopod 1 (Figure 7 a) carpus and propodus anterior margins devoid of setae, a series of short and equidistant setae, interspersed with longer ones, cover posterior margin of carpus and propodus. Gnathopod 2 (Figure 7 b) slightly larger than 1, palmar corner defined by 2 strong robust setae.	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
32759B414F2F2472FE0FFAEAFE3CFDCA.taxon	etymology	Etymology. Named after the spinicauda for bearing pleonal and first two urosomal segments dorsally toothed.	en	Ortiz, Manuel, Winfield, Ignacio, Ardisson, Pedro-Luis (2022): A new deep-sea genus and species of Eriopisidae (Crustacea: Amphipoda: Senticaudata) from the Gulf of Mexico. Journal of Natural History 56 (21 - 24): 1109-1121, DOI: 10.1080/00222933.2022.2101958, URL: http://dx.doi.org/10.1080/00222933.2022.2101958
