kaupii, Sphagebranchus Bleeker [P.] 1858:3 [Acta Societatis Regiae Scientiarum Indo-Neêrlandicae v. 5 (art. 8); ref. 16962] Manado, Sulawesi, Indonesia. Holotype (unique): lost. Bleeker specimen: BMNH 1867.11.28.304 (1). •See McCosker 1977:69 [ref. 6836]. •Valid as Yirrkala kaupii (Bleeker 1858) (sometimes seen as kaupi) -- (Kottelat et al. 1993:13 [ref. 23448], Smith & McCosker 1999:1669 [ref. 24715], McCosker 2014:339 [ref. 33288], Miesen et al. 2016:81 [ref. 34492], Jamandre 2023:160 [ref. 40455]). Current status: Valid as Yirrkala kaupii (Bleeker 1858). Ophichthidae: Ophichthinae. Distribution: Southeast Asia: Indonesia and Philippines. Habitat: freshwater, brackish.