Hypogaleus (subgenus of Galeorhinus) Smith [J. L. B.] 1957:(585) 589 Masc. Galeorhinus (Hypogaleus) zanzibarensis Smith 1957. Type by original designation (also monotypic). Only one species definitely referred to subgenus, therefore also monotypic. •Valid as Hypogaleus Smith 1957 -- (Compagno 1984:393 [ref. 6846], Nakaya in Masuda et al. 1984:5 [ref. 6441], Bass et al. 1986:79 [ref. 5638], Paxton et al. 1989:81 [ref. 12442], Herman et al. 1988:106 [ref. 13267], Compagno 1999:481 [ref. 25589], Hoese et al. 2006:91 [ref. 28999], White 2008:65 [ref. 30617], Ebert et al. 2021:56 [ref. 38234]). Current status: Valid as Hypogaleus Smith 1957. Triakidae: Galeorhininae.