ruscosum, Centroscyllium Gilbert [C. H.] 1905:580, Fig. 230 [Bulletin of the U. S. Fish Commission v. 23 (pt 2) [for 1903]; ref. 1631] Near Kauai Island, Hawaiian Islands, Albatross station 3997, depth 418-429 fathoms. Holotype: USNM 51585. Paratypes: CAS-SU 8642 (1). Type catalog: Böhlke 1953:10 [ref. 12291], Howe & Springer 1993:12 [ref. 21812]. •Synonym of Centroscyllium nigrum Garman 1899 -- (Compagno 1984:50 [ref. 6474], Mundy 2005:99 [ref. 28379], Castro 2011:96 [ref. 31457]). Current status: Synonym of Centroscyllium nigrum Garman 1899. Etmopteridae. Habitat: marine.