inornatus, Opisthognathus Ramsay [E. P.] & Ogilby [J. D.] 1887:561 [Proceedings of the Linnean Society of New South Wales (Series 2) v. 2 (pt 2); ref. 3598] Derby, Western Australia. Syntypes: AMS I.841-42 (1, 1). Correct spelling of the original genus is Opistognathus. •Valid as Opistognathus inornatus Ramsay & Ogilby 1887 -- (Allen & Swainston 1988:126 [ref. 25477], Allen 1997:204 [ref. 23977], Hutchins 2001:40 [ref. 25847], Smith-Vaniz 2004:223 [ref. 27780], Hoese & Bray 2006:1074 [ref. 29000], Smith-Vaniz 2023:64 [ref. 40049]). Current status: Valid as Opistognathus inornatus Ramsay & Ogilby 1887. Opistognathidae. Distribution: Eastern Indian Ocean: northern Western Australia. Habitat: marine.