Opisthonema Gill [T. N.] 1861:37 Neut. Opisthonema thrissa Gill 1861. Type by original designation (also monotypic). Gill lists type as Opisthonema thrissa Gill which was his style when placing an established species in his new genera; he had Clupanodon thrissa Lacepède [1803:470] in synonymy [which goes back to earlier authors] but not to thrissa Linnaeus. Whitehead 1985 lists type as thrissa Gill = Megalops oglina Lesueur 1818; based on Gill's style, type would by thrissa Lacepède. •Valid as Opisthonema Gill 1861 -- (Grande 1985:250 [ref. 6466], Whitehead 1985:67 [ref. 5141], Stephens 1996:475 [ref. 22397], Castro-Aguirre et al. 1999:108 [ref. 24550], Munroe & Nizinski 2003:808 [ref. 26997], Torres-Ramírez 2004:14 [ref. 40495], Minckley & Marsh 2009:76 [ref. 31114]). Current status: Valid as Opisthonema Gill 1861. Dorosomatidae.