macropus, Gobius De Filippi [F.] 1863:391 [Archivio per la Zoologia, l'Anatomia e la Fisiologia v. 2; ref. 18082] Lake Palestom near Poti, Georgia, Eurasia. Syntypes: MZUT 391 (2). Type catalog: Tortonese 1940:144 [ref. 21559]. Also in De Filippi 1865:357 [ref. 13943]. •Synonym of Mesogobius gymnotrachelus (Kessler 1857) -- (Berg 1949:1098 [ref. 20662]). •Synonym of Neogobius gymnotrachelus (Kessler 1857) -- (Miller 1973:502 [ref. 6888], Coad 1995:31 [ref. 23608], Kottelat 1997:178 [ref. 22952], Vasil'eva 1998:139 [ref. 23591], Pinchuk et al. 2003:265 [ref. 27349], Vasil'eva 2003:S49 [ref. 28444]). •Synonym of Ponticola gymnotrachelus (Kessler 1857) -- (Parin et al. 2014:498 [ref. 33547]). •Synonym of Babka gymnotrachelus (Kessler 1857) -- (Neilson & Stepien 2009:97 [ref. 30487], Parenti 2021:68 [ref. 38603]). Current status: Synonym of Babka gymnotrachelus (Kessler 1857). Gobiidae: Gobiinae. Habitat: freshwater, brackish.