Nansenia crassa Lavenberg, 1965 .

Stout Argentine. To 26.6 cm (10.5 in) SL (Kawaguchi and Butler 1984). Central California to southern Baja California and eastern tropical Pacific (Kawaguchi and Butler 1984). Mesopelagic (Kawaguchi and Butler 1984); depth: at least as shallow as 177 m (581 ft) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California) to perhaps 550 m (1,804 ft) (Lavenberg 1965).