Five Gobio species viz. G. battalgilae, G. gymnostethus, G. hettitorum, G. insuyanus and G. microlepidotus inhabit the Konya endorheic basin. Some studies have suggested the synonymy of G. battalgilae and G. microlepidotus based on molecular characters. Therefore, this study aimed to test the hypothesis of synonymy of G. battalgilae and G. microlepidotus. Based on our results, the morphometric and meristic characters of G. battalgilae largely overlap with those of G. microlepidotus, and we find no evidence to support the distinctiveness of the two species. Therefore, G. battalgilae Naseka, Erk'akan & Küçük, 2006 is treated as a junior synonym of G. microlepidotus Battalgil, 1942.