Opistognathus Cuvier [G.] 1816:252 Masc. Opistognathus nigromarginatus Rüppell 1830. Type by subsequent monotypy. Original spelling Opistognathus, often misspelled Opisthognathus. O. sonneratii is a nomen nudum in 1816; the type species is Opistognathus nigromarginatus Rüppell 1830 (Smith-Vaniz 2009:70 [ref. 30149]). •Valid as Opistognathus Cuvier 1816 -- (Yoshino in Masuda et al. 1984:200 [ref. 6441], Smith-Vaniz & Yoshino 1985 [ref. 6721], Smith-Vaniz 1986:726 [ref. 5718], Allen & Robertson 1991 [ref. 19718], Smith-Vaniz 1997:1074 [ref. 22985], Smith-Vaniz 1999:2583 [ref. 24833], Smith-Vaniz 2003:1376 [ref. 27083], Smith-Vaniz 2004:209 [ref. 27780], Bussing & Lavenberg 2003:529 [ref. 27787], Hoese & Bray 2006:1073 [ref. 29000], Smith-Vaniz & Allen 2007:35 [ref. 29354], Smith-Vaniz 2009:70 [ref. 30149], Motomura & Satapoomin 2009:99 [ref. 30492], Smith-Vaniz 2010:39 [ref. 30922], Smith-Vaniz 2011:34 [ref. 31597], Smith-Vaniz et al. 2012:20 [ref. 32262], Biswas et al. 2013:1 [ref. 32524], Hiramatsu & Endo 2013:19 [ref. 32573], Smith-Vaniz 2016:278 [ref. 34922], Motomura et al. 2017:93 [ref. 35490], Fricke et al. 2018:162 [ref. 35805], Golani & Fricke 2018:133 [ref. 36273], Smith-Vaniz et al. 2018:95 [ref. 36264], Shinogara 2021:157 [ref. 38285], Smith-Vaniz 2023:26 [ref. 40049], Fujiwara et al. 2023:353 [ref. 40475], Fujiwara & Ikeda 2024:1 [ref. 40858]). Current status: Valid as Opistognathus Cuvier 1816. Opistognathidae.