Species that contain: Cottus and czerskii [ 2 ] records

czerskii, Cottus Berg [L. S.] 1913:17, Pl. [Zapiski obshchestva izucheniya Amurskogo Kraya [The Acta of the Society for the Study of the Amur Region] v. 13; ref. 14943] Sedanka River, Vladivostok, Russia. Holotype: ZIN 15853. Type catalog: Sideleva & Zhidkov 2021:236 [ref. 38705]. Second specimen mentioned on p. 21 [ZISP 14983]. •Valid as Cottus czerskii Berg 1913 -- (Berg 1949:1140 [ref. 20662], Sideleva 1982:82 [ref. 14469], Sheiko 1983:18 [ref. 37041], Lindberg & Krasyukova 1987:171 [ref. 15964], Kim & Youn 1992:60 [ref. 22287], Zhu 1995:189 [ref. 25213], Kim 1997:406 [ref. 24032], Reshetnikov et al. 1997:758 [ref. 24702], Sideleva 1998:151 [ref. 23595], Sokolovskaya et al. 1998:9 [ref. 24670], Kim & Park 2002:326 [ref. 25913], Bogutskaya et al. 2001:46 [ref. 26178], Choi et al. 2003:262, 572 [ref. 26218], Parin et al. 2002:S73 [ref. 28300], Bogutskaya & Naseka 2004:186 [ref. 28183], Fujii et al. 2005:12 [ref. 28191], Goto et al. 2014:[9] [ref. 33456], Parin et al. 2014:242 [ref. 33547], Zhang et al. 2016:193 [ref. 34477], Sideleva & Zhidkov 2021:236 [ref. 38705]). Current status: Valid as Cottus czerskii Berg 1913. Cottidae. Distribution: East Asia: continental coast of the Sea of Japan from Serebryanka River, Russia to the North Nandai River, Korea. Habitat: freshwater.

paltschevskii, Cottus (Pegedictis) Schmidt [P. Yu.] 1916:614, Fig. 2 [Ezhegodnik, Zoologicheskago Muzeya Imperatorskoi Akademii Nauk v. 20 (for 1915); ref. 3935] Sakhabe River, tributary to Ternay Bay, Tatar Strait, Russia. Syntypes: ZIN 18959 (3). Original spelling should be studied. •Synonym of Cottus czerskii Berg 1913 -- (Berg 1949:1140 [ref. 20662], Sideleva 1998:151 [ref. 23595], Parin et al. 2002:S73 [ref. 28300] as palischevskii, Parin et al. 2014:242 [ref. 33547]). Current status: Synonym of Cottus czerskii Berg 1913. Cottidae. Habitat: freshwater.