Genera that contain: Somniosus [ 5 ] records

Heteroscymnus Tanaka [S.] 1912:102 [Figures and descriptions of the fishes of Japan v. 6; ref. 6033] Masc. Heteroscymnus longus Tanaka 1912. Type by original designation (also monotypic). •Synonym of Somniosus Lesueur 1818 -- (Compagno 1984:102 [ref. 6474]). •Synonym of Somniosus Lesueur 1818, subgenus Rhinoscymnus Gill 1865 -- (Yano et al. 2004:363 [ref. 28078]). Current status: Synonym of Somniosus Lesueur 1818. Somniosidae.

Laemargus Müller [J.] & Henle [F. G. J.] 1837:116 [Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1837; ref. 3067] Masc. Squalus borealis Scoresby 1820. Type by subsequent designation. Dates to Müller & Henle 1837:116 without species. Three species in Müller & Henle 1839:93 [ref. 3069]. Type apparently designated first by Jordan 1919:192 [ref. 2410]. Not mentioned in Yano et al. 2004 [ref. 28078]. •Synonym of Somniosus Lesueur 1818 -- (Krefft & Tortonese 1973:46 [ref. 7165], Compagno 1984:102 [ref. 6474], Cappetta 1987:62 [ref. 6348]). Current status: Synonym of Somniosus Lesueur 1818. Somniosidae.

Leiodon Wood [W.] 1846:174 [Proceedings of the Boston Society of Natural History v. 2 (1845-1848); ref. 4760] Masc. Leiodon echinatum Wood 1846. Type by monotypy. Objectively invalid; preoccupied by Leiodon Swainson 1839 in fishes and by Leiodon Owen 1841 in Reptilia, apparently not replaced. Not mentioned in Yano et al. 2004 [ref. 28078]. •Synonym of Somniosus Lesueur 1818 -- (Compagno 1984:102 [ref. 6474], Cappetta 1987:62 [ref. 6348]). 1°Homonym. Current status: Synonym of Somniosus Lesueur 1818. Somniosidae.

Rhinoscymnus Gill [T. N.] 1865:264 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 16 (no. 5); ref. 1705] Masc. Scymnus rostratus Risso 1827. Type by monotypy. •Synonym of Somniosus Lesueur 1818 -- (Compagno 1984:102 [ref. 6474], Cappetta 1987:62 [ref. 6348]). •Synonym of Somniosus Lesueur 1818, but a valid subgenus Rhinoscymnus -- (Yano et al. 2004:363 [ref. 28078], Hsu et al. 2020:1 [ref. 37776]). Current status: Synonym of Somniosus Lesueur 1818. Somniosidae.

Somniosus Lesueur [C. A.] 1818:222 [Journal of the Academy of Natural Sciences, Philadelphia v. 1 (pt 2); ref. 2735] Masc. Somniosus brevipinna Lesueur 1818. Type by monotypy. Proposed as a "subgenus, allied to the genus Aiguillats (Spix, Cuv.)." Somnolentus Swainson 1838:146 [ref. 4302] is regarded as an incorrect subsequent spelling. •Valid as Somniosus Lesueur 1818 -- (Krefft & Tortonese 1973:46 [ref. 7165], McEachran & Branstetter in Whitehead et al. 1984:143 [ref. 13675], Compagno 1984:102 [ref. 6474], Bass et al. 1986:60 [ref. 5636], Cappetta 1987:62 [ref. 6348], Compagno 1990:84 [ref. 21678], Miller 1993:472 [ref. 21297], Compagno 1999:474 [ref. 25589], Mecklenburg et al. 2002:86 [ref. 25968], Yano et al. 2004:363 [ref. 28078] with 2 subgenera, Hoese & Gates 2006:147 [ref. 28997], Benz et al. 2007:343 [ref. 29289], Parin & Kotlyar 2007:669 [ref. 31012], Mecklenburg et al. 2011:115 [ref. 31212], Castro 2011:115 [ref. 31457], Parin et al. 2014:27 [ref. 33547], Orlov & Baitalyux 2014:533 [ref. 33577], Stewart & Last 2015:159 [ref. 34225], Dyldin 2015:55 [ref. 34524], Pietsch & Orr 2015:16 [ref. 34694], Bañón et al. 2016:299 [ref. 34397], Mecklenburg et al. 2016:15 [ref. 34440], Del Moral-Flores et al. 2016:63 [ref. 34398], Dyldin & Orlov 2018:165 [ref. 35920], Ehemann et al. 2018:24 [ref. 36194], Fricke et al. 2018:20 [ref. 35805], Hsu et al. 2020:1 [ref. 37776], Ebert et al. 2021:32 [ref. 38234]). Current status: Valid as Somniosus Lesueur 1818. Somniosidae.