semicrenatus, Alticus Chapman [W. M.] in de Beaufort & Chapman 1951:270 [Fishes Indo-Australian Archipelago; ref. 16097] Lembeh Strait, Sulawesi, Indonesia. Holotype: CAS-SU 17779. Paratypes: CAS-SU 29487 (17, now 16), ZMA 112464 (2). Type catalog: Böhlke 1953:91 [ref. 12291], Nijssen et al. 1982:93 [ref. 19236]. Author is W. M. Chapman. •Valid as Praealticus semicrenatus (Chapman 1951) -- (Bath & Patzner 1991:52 [ref. 19212], Patzner et al. 2009:460 [ref. 30396], Allen & Erdmann 2012:831 [ref. 31980]). •Probably a synonym of Praealticus oortii (Bleeker 1851) -- (Bath 1992:296 [ref. 20223]). Current status: Valid as Praealticus semicrenatus (Chapman 1951). Blenniidae: Salariinae. Distribution: Western Pacific: Indonesia. Habitat: marine.