boulengeri, Abyssocottus Berg [L. S.] 1906:908 [Zoologischer Anzeiger v. 30 (no. 26); ref. 265] Lake Baikal, Russia. Syntypes: whereabouts unknown. Type catalog: Sideleva & Zhidkov 2021:231 [ref. 38705]. Sideleva 2001:68 [ref. 26181] lists ZIN 13736 as holotype. •Valid as Cottinella boulengeri (Berg 1906) -- (Berg 1949:1159 [ref. 20662], Taliev 1955:341 [ref. 4316], Sideleva 1982:30 [ref. 14469], Reshetnikov et al. 1997:760 [ref. 24702], Sideleva 1998:156 [ref. 23595], Sideleva 2001:68 [ref. 26181], Bogutskaya et al. 2001:47 [ref. 26178], Kontula et al. 2003:149 [ref. 26791], Sideleva 2003:18, 189 [ref. 27815], Bogutskaya & Naseka 2004:197 [ref. 28183], Goto et al. 2014:[15] [ref. 33456], Dyldin et al. 2020:116 [ref. 37569], Sideleva & Zhidkov 2021:231 [ref. 38705]). •Valid as Abyssocottus boulengeri (Berg 1906) -- (Bogdanov 2023:67 [ref. 40329]). Current status: Valid as Cottinella boulengeri (Berg 1906). Cottidae. Distribution: North Asia: Lake Baikal (Russia). Habitat: freshwater.