decacuspidatus, Etmopterus Chan [W. L.] 1966:220, Pl. 1a [Journal of Zoology (London) v. 148; ref. 806] South China Sea, about 120 miles south of Cape Bastion, Hainan Island, 16°40.5'N, 109°49.9'E, depth 280-378 fathoms. Holotype (unique): BMNH 1965.8.11.7. •Valid as Etmopterus decacuspidatus Chan 1966 -- (Compagno 1984:75 [ref. 6474], Compagno & Niem 1998:1221 [ref. 23787], Compagno 1999:473 [ref. 25589], Compagno in Randall & Lim 2000:580 [ref. 25122], Last et al. 2002:203 [ref. 26556], Schaaf-Da Silva & Ebert 2006:62 [ref. 28880], Weigmann 2016:58 [ref. 34211], Ebert et al. 2016:10 [ref. 34753], Ebert et al. 2017:380 [ref. 35167], Ebert & Van Hees 2018:207 [ref. 36261], Ebert et al. 2021:14 [ref. 38362]). Current status: Valid as Etmopterus decacuspidatus Chan 1966. Etmopteridae. Distribution: Western North Pacific: South China Sea. Habitat: marine.