leptocephalus, Benthophilus Kessler [K. F.] 1877:45 [The Aralo-Caspian Expedition; ref. 2597] Southern Caspian Sea, depth 756 feet [108 Russian fathoms, 230 meters]. Lectotype: ZIN 10894. Paralectotypes: (1). Lectotype selected by Ragimov 1982:51 as the 32-mm specimen in ZISP 10894. Comments by Boldyrev & Bogutskaya 2007:75 [ref. 29150] on Berg's lectotype establishment (see Eschmeyer 1998:893) subject to interpretation. •Valid as Benthophilus leptocephalus Kessler 1877 -- (Berg 1949:1117 [ref. 20662], Coad 1995:29 [ref. 23608], Reshetnikov et al. 1997:753 [ref. 24702], Vasil'eva 1998:129 [ref. 23591], Pinchuk & Miller in Miller 2004:216 [ref. 27853], Bogutskaya & Naseka 2004:217 [ref. 28183], Boldyrev & Bogutskaya 2004:134 [ref. 28099], Boldyrev & Bogutskaya 2007:73 [ref. 29150], Neilson & Stepien 2009:96 [ref. 30487], Esmaeili et al. 2010:376 [ref. 33391], Jouladeh-Roudbar et al. 2015:897 [ref. 34062], Esmaeili et al. 2017:81 [ref. 35254], Esmaeili et al. 2018:61 [ref. 36089], Jouladeh-Roudbar et al. 2020:228 [ref. 37983], Parenti 2021:70 [ref. 38603], Zarei et al. 2022:167 [ref. 39576]). Current status: Valid as Benthophilus leptocephalus Kessler 1877. Gobiidae: Gobiinae. Distribution: Eurasia: Caspian Sea basin. Habitat: freshwater, brackish.