simus, Opistognathus Smith-Vaniz [W. F.] 2010:52, Figs. 2H, 17 [Smithiana, Publications in Aquatic Biodiversity, Bulletin No. 12; ref. 30922] About 3.2 kilometers east of Raphael Island, ca. 16°20'S, 59°38.5'E, Cargados Carajos (Saint Brandon Shoals), western Indian Ocean, depth 0.2-1.3 meters. Holotype: USNM 315658. Paratypes: ANSP 167418 (1), USNM 315659 (1). •Valid as Opistognathus simus Smith-Vaniz 2010 -- (Smith-Vaniz 2022:313 [ref. 39947], Smith-Vaniz 2023:92 [ref. 40049]). Current status: Valid as Opistognathus simus Smith-Vaniz 2010. Opistognathidae. Distribution: Western Indian Ocean: Saint Brandon Shoals (Cargados Carajos) endemic. Habitat: marine.