tenuis, Ophichthys Günther [A.] 1870:88 [Catalogue of the fishes in the British Museum v. 8; ref. 1995] No locality stated. Lectotype: BMNH 1965.1.2.1. Paralectotypes: BMNH 1865.1.2.3-4 (2). Lectotype established by Dor 1984:36 [ref. 29757] if not designated earlier. •Valid as Pantonora tenuis (Günther 1870) -- (Dor & Palmer 1977:140 [ref. 21143], Dor 1984:36 [ref. 29757]). •Valid as Yirrkala tenuis (Günther 1870) -- (McCosker 1977:69 [ref. 6836], McCosker & Castle 1986:186 [ref. 5690], Goren & Dor 1994:9 [ref. 25356], Fricke 1999:67 [ref. 24106], Keith et al. 1999:78 [ref. 24548], McCosker 2006:376 [ref. 29014], Fricke et al. 2009:20 [ref. 30213], Fricke et al. 2015:63 [ref. 33895], Golani & Fricke 2018:29 [ref. 36273], Arndt & Fricke 2019:24 [ref. 36883], McCosker 2022:137 [ref. 39686], Fricke et al. 2024:81 [ref. 41255]). Current status: Valid as Yirrkala tenuis (Günther 1870). Ophichthidae: Ophichthinae. Distribution: Red Sea; western Indian Ocean: KwaZulu-Natal (South Africa) and East Africa east to Seychelles and western Mascarenes (La Réunion, Mauritius). Habitat: freshwater, brackish, marine.