taxonID	type	description	language	source
03D2373C7E33FFC6FF1A662689CAFE93.taxon	materials_examined	Type species. Leongathus nootoo Barnard and Drummond, 1978 (by original designation). Diagnosis. Rostrum unconstricted. Eyes present, weak or absent. Antenna 1 peduncular article 2 of medium length, ventral setae confined proximally. Antenna 2 peduncular article 1 not or scarcely ensiform, article 3 with 2 facial setules, facial robust setae on article 4 in 1 main row, all robust setae thick, article 5 ordinary. Right mandibular incisor with 3 teeth, right lacinia mobilis bifid, flabellate, denticulate, molar partly triturative, with 7 + large teeth; palpar hump medium, apex of palp article 3 oblique. Maxilla 1 inner plate with 4 – 5 setae, palp 2 - articulate. Maxillipeds ordinary, apex of palp article 3 not strongly protuberant, dactyl elongate, apical nail not distinct. Gnathopods dissimilar, gnathopod 2 strongly enlarged, carpus of gnathopod 1 of ordinary length, free, of gnathopod 2 short, cryptic (posterior margin concealed by the abutment of propodus and merus), palms oblique, gnathopods 1 – 2 propodus respectively thin and broadened, poorly setiferous anteriorly. Pereopods 3 – 4 carpus without posteroproximal robust setae, propodus with mostly thin armaments. Pereopod 5 basis of narrow form or broad form (basis equal to or greater than twice width of ischium), but tapering distally, pereopods 5 – 6 merus-carpus medium to narrow; pereopod 7 unreduced, article 3 not enlarged, dactyl well developed. Epimera 1 – 2 with or without long facial brushes of setae, with or without posterior setae, epimeron 3 bearing long setae. Urosomite 3 without dorsal hook. Uropod 1 peduncle without inter-ramal robust setae, without major displaced robust seta (seta that is shifted onto the apical margin disjunctly from the true inner margin), uropods 1 – 2 rami not continuously setose to apex, without subapical robust setae or nails, uropod 1 inner ramus with 1 row of marginal robust setae. Uropod 2 inner ramus ordinary. Uropod 3 ordinary, outer ramus longer than peduncle, bearing a 2 nd article on outer ramus (minute in L. alannah), with 2 long apical setae. Telson ordinary. Remarks. To accommodate the new species the diagnosis of Barnard and Karaman (1991) has been expanded to include the traits eyes present; antenna 2 peduncular article 1 not ensiform; right lacinia mobilis flabellate, denticulate; maxilla 1 inner plate with 4 – 5 setae; pereopod 5 basis of narrow form or broad form; pereopods 5 – 6 merus-carpus medium to narrow; epimera 1 – 2 with or without long facial brushes of setae, with or without posterior setae.	en	Taylor, Joanne (2006): A new species of Leongathus from the Tasman Sea collected during the 2003 NORFANZ Expedition (Crustacea: Amphipoda: Phoxocephalidae). Memoirs of Museum Victoria 63 (2): 207-213, DOI: 10.24199/j.mmv.2006.63.16, URL: https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-63-issue-2-2006/pages-207-213/
03D2373C7E33FFC1FCBD65018EE7FEF4.taxon	description	Figures 1 – 4 Material examined. Holotype: Australia, Tasman Sea, West Norfolk Ridge, Wanganella Bank (32 ° 36.29 ' S, 167 ° 43.59 ' E), 707 m, beam trawl, P. B. Berents, 29 May 2003 (stn TAN 0308 / 107), AM P 68013 (female, tl. 20 mm). Paratypes: Type locality, AM P 73354 (1 female, tl. 16 mm). Australia, TasmanSea, NorthNorfolkRidge, (28 ° 51.13 ' S, 167 ° 42.32 ' E), 812 m, beam trawl, D. J. Bray, 15 May 2003 (stn TAN 0308 / 029) NMV J 53346 (2 females, tl. 13 – 14 mm). Tasman Sea, North Norfolk Ridge, (32 ° 36.18 ' S, 167 ° 47.26 ' E), 1029 m, beam trawl, P. B. Berents, 29 May 2003 (stn TAN 0308 / 111), AM P 66426 (female, tl. 18 mm). Description. Female. Eyes present. Rostrum unconstricted, exceeding apex of peduncular article 1 on antenna 1. Antenna 1 peduncular article 1 about 1.5 times as long as wide, about 2.1 times as wide as peduncular article 2, ventral margin with 4 setae, dorsal apex with 3 setae; peduncular article 2 about 0.5 times as long as peduncular article 1, with 13 ventral and 3 apical setae; primary flagellum with 16 articles, about 0.8 times as long as peduncle; accessory flagellum with 12 articles. Antenna 2 not ensiform, peduncular article 4 with 11 robust setae in 1 apical row, dorsal margin with 2 notches each bearing 1 robust seta and simple setae, ventral margin with 19 long setae, 3 long ventrodistal robust seta; peduncular article 5 about 0.8 times as long as peduncular article 4, with 7 facial robust seta, dorsal margin with 4 setae, ventral margin with 15 long setae; flagellum 1.1 times as long as peduncular articles 4 – 5 combined, with 16 articles. Mandible, molar partly trituritive, bearing 13 large teeth; right incisor with 3 teeth; left incisor with 3 humps in 2 branches; right lacinia mobilis bifid, distal branch shorter than proximal, flabellate, denticulate, proximal branch simple; left lacinia mobilis with 5 teeth; right raker 10; left rakers 11; molars composed of elongate lamina in form of cone bearing 14 cusps and 2 short plusetae weakly disjunct, molars covered with fine setae; palp article 1 short, article 2 with 10 medium inner apical setae, 6 outer setae and 4 facial setae, article 3 about 1.1 times as long as article 2, apex oblique with 19 robust-slender setae, with 6 basofacial setae. Maxilla 1 inner plate bearing 2 long apical pluseta, 3 apicolateral much shorter seta; palp article 2 with 18 marginal robust setae. Maxilla 2 plates extending equally, outer slightly broader than inner, setation of inner and outer plate as illustrated. Maxilliped inner plates with 2 large thick apical robust setae, 6 apicofacial setae; outer plate large with 12 medial and apical robust setae, 13 apical and lateral setae; palp article 1 lacking apicolateral setae, article 2 with 3 apicolateral setae, medial margin of article 2 strongly setose, article 3 protuberant, with 12 facial setae, 5 lateral setae, nail of article 4 obsolescent, with 2 accessory setules. Coxa 1 slightly expanded distally; main ventral setae of coxae 1 – 4 = 21 – 25 – 18 – 43, posteriormost seta of coxae 1 – 3 shortened; anterior and posterior margins of coxa 4 divergent, posterodorsal corner rounded, posterodorsal margin short, width-length ratio of coxa 4 almost = 5: 6. Long posterior setae on basis of gnathopods 1 – 2 and pereopods 3 – 4 = 17 – 19 – 21 – 16, short posteriors = 2 – 0 – 3 – 2, long anteriors = 12 – 20 – 12 – 6, short anteriors = 1 – 0 – 2 – 0. Gnathopod 1 carpus free, gnathopod 2 enlarged, carpus cryptic. Width ratios of carpus-propodus on gnathopods 1 – 2 = 9: 11 and 8: 19, length ratios = 17: 23 and 1: 5; palmar humps ordinary, palms oblique. Pereopods 3 – 4 similar, facial setae on merus = 9 and 9, on carpus = 10 and 10; main spine of carpus extending to M. 77 and M. 95, carpus lacking proximoposterior robust setae; robust setae formula of propodus = 8 + 4 and 9 + 9; acclivity on inner margin of dactyls of pereopods 3 – 4 weak, obsolescent, emergent setule short, midfacial pluseta ordinary. Coxae 5 – 7 posteroventral setae formula = 23 – 13 – 21; merus-carpus of pereopod 5 medium of pereopod 6 narrow, facial robust setae rows sparse, facial ridge formula on basis of pereopods 5 – 7 = 0 – 1 – 1, anterior ridge of pereopod 7 long; width ratios of basis, merus, carpus, propodus of pereopod 5 = 2: 2: 2: 1, of pereopod 6 = 19: 10: 8: 4, of pereopod 7 = 35: 12: 11: 5, length ratios of pereopod 5 = 15: 6: 6: 8, of pereopod 6 = 18: 22: 19: 22, of pereopod 7 = 37: 14: 14: 5; basis of pereopod 7 barely exceeding apex of merus, with row of 9 facial setae along facial ridge, with ventral setae. Pleopods 1 – 3 with 2 coupling hooks; articles on outer rami = 24 – 22 – 24; articles on inner rami = 16 – 17 – 17. Epimeron 1 posteroventral corner rounded, anteroventral margin with 26 medium setae, posterior margin with 12 setae; epimeron 2 posteroventral corner rounded, with 3 rows of 5 – 7 anteroventral setae, posterior margin with 12 setae; epimeron 3 posteroventral corner rounded, ventral margin with 6 setae, posterior margin with 18 setae. Urosomite 1 naked; urosomite 3 without dorsal hook. Uropods 1 – 2 rami with distinct apical nails, uropod 1 outer ramus with 3 dorsal robust setae, inner without robust setae, uropod 2 outer and inner rami with 1 dorsomedial robust seta; uropod 1 peduncle with 11 apicolateral robust setae, with 3 sets of 1 – 3 basofacial slender setae, without apical enlarged robust seta; uropod 2 peduncle with 9 dorsal robust setae and 5 slender setae; apicolateral corners of peduncles on uropods 1 – 2 without comb. Uropod 3 unreduced, outer ramus longer than peduncle. Uropod 3 peduncle with 5 ventral robust setae, dorsally with 1 lateral robust seta; rami feminine, inner extending to M. 80 on article 1 of outer ramus, apex with 1 setae, medial margin with 4 slender setae, lateral margin naked, article 2 of outer ramus very short, 0.05, bearing 2 long setae, apicomedial margin of article 1 with 4 slender setae, lateral margin with 4 acclivities, robust setal formula = 1 – 2 – 2 – 2, slender setae formula = 1 – 0 – 0 – 0. Telson length-width ratio = 17: 19, almost fully cleft, each apex wide, rounded, lateral acclivity broad, shallow, bearing 3 robust setae, midlateral setules diverse. Adult male. Unknown. Distribution. Australia, Tasman Sea, Norfolk Ridge; 707 – 812 m depth. Etymology. Named for my daughter Alannah Taylor with whom I was pregnant whilst preparing illustrations. Remarks. The following variations from the holotype were observed in the paratypes. The main ventral setae of coxae 1 – 4 = (20 – 21) – (21 – 25) – (18 – 22) – (42 – 46). Uropod 1 outer ramus with 3 – 5 dorsal robust setae, inner ramus 0 – 3 dorsal robust setae. Uropod 2 outer ramus with 1 – 6 dorsal robust setae, inner ramus with 1 or without dorsal robust setae.	en	Taylor, Joanne (2006): A new species of Leongathus from the Tasman Sea collected during the 2003 NORFANZ Expedition (Crustacea: Amphipoda: Phoxocephalidae). Memoirs of Museum Victoria 63 (2): 207-213, DOI: 10.24199/j.mmv.2006.63.16, URL: https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-63-issue-2-2006/pages-207-213/
