macrognathus, Opisthognatus Poey [F.] 1860:284 [Memorias sobre la historia natural de la Isla de Cuba v. 2; ref. 3499] Cuba. No types known. Correct spelling of original genus is Opistognathus. •Valid as Opistognathus macrognathus Poey 1860 -- (Robins & Ray 1986:216 [ref. 23100], Cervigón 1994:18 [ref. 24488], Smith-Vaniz 1997:1097 [ref. 22985], Aguilera 1998:52 [ref. 24221], Schmitter-Soto et al. 2000:158 [ref. 27754], Smith-Vaniz 2003:1378 [ref. 27083], Nelson et al. 2004:130 [ref. 27807], McEachran & Fechhelm 2005:205 [ref. 28815], Page et al. 2013:134 [ref. 32708], Robertson et al. 2020:159 [ref. 38098], Robertson et al. 2022:87 [ref. 39353], Martínez-Servín et al. 2023:115 [ref. 40726], Page et al. 2023:159 [ref. 40505]). Current status: Valid as Opistognathus macrognathus Poey 1860. Opistognathidae. Distribution: Western Atlantic: including Caribbean Sea. Habitat: marine.