melachasme, Opistognathus Smith-Vaniz [W. F.] 1972:50, Figs. 3-4 [Copeia 1972 (no. 1); ref. 7646] Arrowsmith Bank off Yucatán, 21°07'N, 86°21'W, depth 155-205 meters. Holotype: ANSP 114763. Paratypes: UF 228548 [ex UMML 28548] (1), USNM 37462 (1). Type catalog: Böhlke 1984:135 [ref. 13621]. •Valid as Opistognathus melachasme Smith-Vaniz 1972 -- (Robins & Ray 1986:217 [ref. 23100], Smith-Vaniz 1997:1085 [ref. 22985], Schmitter-Soto et al. 2000:158 [ref. 27754], Smith-Vaniz 2003:1378 [ref. 27083], Nelson et al. 2004:130 [ref. 27807], McEachran & Fechhelm 2005:207 [ref. 28815], Page et al. 2013:134 [ref. 32708], Smith-Vaniz 2017:55 [ref. 35243]). Current status: Valid as Opistognathus melachasme Smith-Vaniz 1972. Opistognathidae. Distribution: Western Atlantic. Habitat: marine.