pallasi, Gobius fluviatilis Berg [L. S.] 1916:417 [Les Poissons des eaux douces de la Russie; ref. 277] Caspian Sea. Syntypes: ZISP 2195, 2204, 23137, 30729, 30736, 30738, 30919, 30920, 30924-26. 33182, 34276, 34277. Syntypes are as given in Pinchuk et al. 2003:222 [ref. 27349]. •Synonym of Rhinogobius fluviatilis (Pallas 1814), but a valid subspecies as described -- (Berg 1949:1093 [ref. 20662]). •Synonym of Neogobius fluviatilis (Pallas 1814), but a valid subspecies pallasi Berg 1916 -- (Miller in Whitehead et al. 1986:1061 [ref. 13677], Mitrofanov & Dukravec 1989:278 [ref. 37748], Coad 1995:31 [ref. 23608], Reshetnikov et al. 1997:755 [ref. 24702], Vasil'eva 1998:139 [ref. 23591]). •Synonym of Neogobius fluviatilis (Pallas 1814) -- (Pinchuk et al. 2003:222 [ref. 27349], Neilson & Stepien 2009:96 [ref. 30487]). •Synonym of Neogobius fluviatilus (Pallas 1814), subspecies pallasi (Berg 1916) -- (Parin et al. 2014:494 [ref. 33547]). •Valid as Neogobius pallasi (Berg 1916) -- (Kottelat & Freyhof 2007:583 [ref. 29996], Esmaeili et al. 2010:377 [ref. 33391], Freyhof 2011:284 [ref. 31742], Jouladeh-Roudbar et al. 2015:899 [ref. 34062], Davoodi & Rahimian 2016:82 [ref. 34954], Esmaeili et al. 2017:84 [ref. 35254], Esmaeili et al. 2018:65 [ref. 36089], Jouladeh-Roudbar et al. 2020:238 [ref. 37983], Kuljanishvili et al. 2020:[5] [ref. 37535], Parenti 2021:74 [ref. 38603], Zarei et al. 2021:[6] [ref. 38262], Zarei et al. 2022:176 [ref. 39576], Çiçek et al. 2024:309 [ref. 40789]). Current status: Valid as Neogobius pallasi (Berg 1916). Gobiidae: Gobiinae. Distribution: Eurasia: Caspian Sea basin, Aral Sea (introduced). Habitat: freshwater, brackish.