mahmudbejovi, Benthophilus Ragimov [D. B.] 1976:1196, Fig. [Zoologicheskii Zhurnal v. 55 (no. 8); ref. 7386] Off Cape Peschanyy, middle Caspian Sea, Kazakhstan, depth 40 meters. Holotype: ZISP 53655 [ex IZAB 027]. Paratypes: ZISP 53656 [ex IZAB 012] (20). •Valid as Benthophilus mahmudbejovi Ragimov 1976 -- (Coad 1995:30 [ref. 23608], Reshetnikov et al. 1997:753 [ref. 24702], Vasil'eva 1998:130 [ref. 23591], Bogutskaya et al. 2001:47 [ref. 26178], Vasil'eva 2003:S43 [ref. 28444], Pinchuk & Miller in Miller 2004:241 [ref. 27853], Bogutskaya & Naseka 2004:218 [ref. 28183], Boldyrev & Bogutskaya 2004:130 [ref. 28099], Boldyrev & Bogutskaya 2007:51 [ref. 29150], Kottelat & Freyhof 2007:561 [ref. 29996], Neilson & Stepien 2009:96 [ref. 30487], Esmaeili et al. 2010:377 [ref. 33391], Jouladeh-Roudbar et al. 2015:897 [ref. 34062], Esmaeili et al. 2017:81 [ref. 35254], Esmaeili et al. 2018:62 [ref. 36089], Parenti 2021:71 [ref. 38603], Zarei et al. 2022:168 [ref. 39576]). Current status: Valid as Benthophilus mahmudbejovi Ragimov 1976. Gobiidae: Gobiinae. Distribution: Eurasia: Caspian Sea and upper Volga delta [not Sea of Azov]. Habitat: freshwater, brackish.