Two new species of freshwater fishes of the Genus Alburnoides, A. fangfangae and A. devolli (Actinopterygii: Cyprinidae), from the Adriatic Sea basin in Albania
Two new species of the genus <i>Alburnoides </i>are described from the river Seman drainage in the eastern Adriatic Sea basin in Albania. Both species have a pharyngeal tooth formula of 2.5-4.2. <i>Alburnoides fangfangae</i>, which occurs in the upper Osum river system, is distinguished from other members of the genus by a combination of characters including 11½-13½ anal fin branched rays, small scales numbering 46-53 in the total pored lateral line, total vertebrae usually 40 (20+20 and 21+19) or 41 (21+20 and 20+21), caudal peduncle depth 43-48% body depth at dorsal fin origin, usually a mostly or completely scaleless ventral keel, the mouth with a curved and only slightly slanted cleft and a produced fleshy snout, the interorbital width 1.3-1.5 times the eye diameter, a weakly ossified preethmoid, and a depressed and considerably expanded anterior tip of the basihyal (a unique feature among the western European <i>Alburnoides</i>). <i>Alburnoides devolli</i>, which is described from the upper Devoll river system, differs in having 11½-13½ anal fin branched rays, larger scales numbering 44-48 in the total pored lateral line, total vertebrae usually 40 (20+20), caudal peduncle depth 35-43% body depth at dorsal fin origin, usually a mostly or completely scaled ventral keel, the mouth with a straight and upturned cleft, the interorbital width 1.1-1.4 times the eye diameter, a completely ossified preethmoid, and a narrow, very deeply indented anterior tip of the urohyal (a unique feature among the western European <i>Alburnoides</i>). A comparison with <i>Alburnoides </i>species from River Danube and Prespa, Ohrid, and Skadar lakes is provided.