Species that contain: Somniosus and pacificus [ 2 ] records

antarcticus, Somniosus Whitley [G. P.] 1939:242 [Australian Zoologist v. 9 (pt 3); ref. 4695] Macquarie Island, south of Tasmania. Holotype (unique): tooth and skin samples (whereabouts unknown). Species described from a drawing in Waite 1916:51, Fig. 10. [ref. 4568]. •Questionably a synonym of Somniosus microcephalus (Bloch & Schneider 1801) -- (Compagno 1984:103, 105 [ref. 6474], Compagno 1990:84 [ref. 21678]). •Synonym of Somniosus pacificus Bigelow & Schroeder 1944 -- (Last & Stevens 1994:90 [ref. 23873]). •Valid as Somniosus antarcticus Whitley 1939 -- (Yano et al. 2004:369, 370 [ref. 28078], Duhamel et al. 2005:62 [ref. 32059], Hoese & Gates 2006:147 [ref. 28997], Benz et al. 2007:346 [ref. 29289], Stewart & Last 2015:159 [ref. 34225], Dyldin 2015:56 [ref. 34524], Weigmann 2016:64 [ref. 34211], Fricke et al. 2018:20 [ref. 35805], Almeida & Biscoito 2019:110 [ref. 37302], Hsu et al. 2020:8 [ref. 37776], Ebert et al. 2021:32 [ref. 38234], Kemper & Ebert 2022:440 [ref. 39661], Carvalho-Filho 2023:294 [ref. 40480], Leeney 2024:33 [ref. 40985], Campos-León et al. 2025:[8] [ref. 42591]). Current status: Valid as Somniosus antarcticus Whitley 1939. Somniosidae. Distribution: Circumglobal in temperate seas of the Southern Hemisphere. IUCN (2018): Least Concern. Habitat: marine.

pacificus, Somniosus Bigelow [H. B.] & Schroeder [W. C.] 1944:35 [Proceedings of the New England Zoölogical Club v. 23; ref. 13163] Sagami Sea, Japan. Holotype (unique): MCZ 1103-S (piece of skin and part of jaw). Holotype is specimen figured as brevipinna in Garman 1913:Pl. 15 [ref. 1545]. See also Pequeño 1989:12 [ref. 14125]. •Valid as Somniosus pacificus Bigelow & Schroeder 1944 -- (Anderson et al. 1979:259 [ref. 16035], Eschmeyer & Herald 1983:22 [ref. 9277], Compagno 1984:105 [ref. 6474], Nakaya & Shirai in Masuda et al. 1984:11 [ref. 6441], Ebert et al. 1987:117 [ref. 20815], Castro-Aguirre & Garcia-Dominguez 1988:104 [ref. 19199], Paulin et al. 1989:15 [ref. 24556], McAllister 1990:33 [ref. 14674], Last & Stevens 1994:89 [ref. 23873], Compagno et al. in Fischer et al. 1995:727 [ref. 22829], Heemstra in Smith & Heemstra 1995:v [ref. 21953], Compagno & Niem 1998:1222 [ref. 23787], Chirichigno F. & Vélez D. 1998:61 [ref. 24555], Díaz de Astarloa et al. 1999:303 [ref. 24050], Orlov 1999:558 [ref. 24876], Compagno 1999:474 [ref. 25589], Nakabo 2000:147 [ref. 25086], Sheiko & Fedorov 2000:15 [ref. 25650], Shinohara et al. 2001:289 [ref. 25995], Soto 2001:66, 93 [ref. 26637], Mecklenburg et al. 2002:86 [ref. 25968], Nakabo 2002:147 [ref. 26001], Gadig & Gomes in Menezes et al. 2003:26 [ref. 27192], Fedorov et al. 2003:13 [ref. 27579], Espinosa Pérez et al. 2004:101 [ref. 27705], Nelson et al. 2004:50 [ref. 27807], Glubokov 2004:357 [ref. 27884], Yano et al. 2004:369 [ref. 28078] but not including antarcticus, Love et al. 2005:3 [ref. 37547], Mundy 2005:101 [ref. 28379], Benz et al. 2007:346 [ref. 29289], Mecklenburg et al. 2011:115 [ref. 31212], Castro 2011:131 [ref. 31457], Page et al. 2013:53 [ref. 32708], Ebert et al. 2013:296 [ref. 33045], Shinohara et al. 2014:233 [ref. 33330], Parin et al. 2014:27 [ref. 33547], Orlov & Baitalyuk 2014:533 [ref. 33577], Dyldin 2015:56 [ref. 34524], Kang et al. 2015:46 [ref. 39477], Mecklenburg & Steinke 2015:163 [ref. 34033], Pietsch & Orr 2015:16 [ref. 34694], Afonso et al. 2016:11, 281 [ref. 36199], Del Moral-Flores et al. 2016:63 [ref. 34398], Kells et al. 2016:76 [ref. 35888], Mecklenburg et al. 2016:15 [ref. 34440], Nión et al. 2016:21 [ref. 35565], Weigmann 2016:65 [ref. 34211], Ebert et al. 2017:51 [ref. 35618], Dyldin & Orlov 2018:165 [ref. 35920], Ehemann et al. 2018:24 [ref. 36194], Mecklenburg et al. 2018:31 [ref. 36370], Burton & Lea 2019:30 [ref. 37205], Calle-Morán et al. 2020:244 [ref. 37881], Hsu et al. 2020:8 [ref. 37776], Dyldin & Orlov 2021:56 [ref. 38158], Love et al. 2021:21 [ref. 39279], Castillo Domínguez et al. 2023:8 [ref. 40663], Page et al. 2023:42 [ref. 40505], Fricke et al. 2024:80 [ref. 41622], Han et al. 2024:3 [ref. 41774]). Current status: Valid as Somniosus pacificus Bigelow & Schroeder 1944. Somniosidae. Distribution: North Pacific, Arctic Ocean: Hainan (southern China), Korea and Japan north to Bering Sea, then south to off Pacific coast of southern Baja California Sur (Mexico); also reported from Chukchi Sea and possibly East Siberian and Beaufort seas; eastern Pacific: Baja California (Mexico); Ecuador. Habitat: marine.