Apollonia (subgenus of Gobius) Iljin [B. S.] 1927:133 Fem. Gobius melanostomus Pallas 1814. Type by monotypy. •Synonym of Neogobius Iljin 1927, but a valid subgenus Apollonia as described -- (Bogutskaya & Naseka 2004:227 [ref. 28183]). •Valid as Apollonia Iljin 1927 -- (Stepien & Tumeo 2006:67 [ref. 31437]). •Synonym of Neogobius Iljin 1927 -- (Miller 1973:502 [ref. 6888], Vasil'eva 2003:S48 [ref. 28444], Neilson & Stepien 2009:96 [ref. 30497], Parin et al. 2014:492 [ref. 33547], Parenti 2021:72 [ref. 38603]). Current status: Synonym of Neogobius Iljin 1927. Gobiidae: Gobiinae.