nigrum, Centroscyllium Garman [S.] 1899:28, Pls. 1 (fig. 2), 4-5, 69 (fig. 1) [Memoirs of the Museum of Comparative Zoology v. 24; ref. 1540] Eastern Pacific, 7°09'30"N, 81°08'30"W, Albatross station 3356, depth 546 fathoms; 6°30'N, 81°44'W, station 3358, depth 555 fathoms. Syntypes: MCZ 1006-S (1), 1007-S (1). Type catalog: Hartel & Dingerkus 1997:xli [ref. 23119]. •Valid as Centroscyllium nigrum Garman 1899 -- (Compagno 1984:50 [ref. 6474], Castro-Aguirre & Garcia-Dominguez 1988:101 [ref. 19199], Pequeño 1989:12 [ref. 14125], Shirai & Nakaya 1990:397 [ref. 17335], Long 1994:478 [ref. 21752], Compagno et al. in Fischer et al. 1995:725 [ref. 22829], Grove & Lavenberg 1997:103 [ref. 24023], Chirichigno F. & Vélez D. 1998:58 [ref. 24555], Compagno 1999:473 [ref. 25589], Espinosa Pérez et al. 2004:93 [ref. 27705], Love et al. 2005:3 [ref. 37547], Mundy 2005:99 [ref. 28379], McCosker & Rosenblatt 2010:187 [ref. 30957], Ruiz-Campos et al. 2010:365 [ref. 37373], Castro 2011:96 [ref. 31457], Del Moral-Flores et al. 2016:60 [ref. 34398], Weigmann 2016:57 [ref. 34211], Ebert et al. 2017:51 [ref. 35618], Ehemann et al. 2018:23 [ref. 36194], Calle-Morán et al. 2020:244 [ref. 37881], Love et al. 2021:21 [ref. 39279], Page et al. 2023:41 [ref. 40505]). Current status: Valid as Centroscyllium nigrum Garman 1899. Etmopteridae. Distribution: Central Pacific: Hawaiian Islands (U.S.A.); eastern Pacific: southern California (U.S.A.) and Pacific coast of northern Baja California (Mexico) south to central Chile, including Cocos Island (Costa Rica) and Galapagos Islands (Ecuador). Habitat: marine.