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21-3_Alburnoides tabarestanensis

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Description

Hamed Mousavi-Sabet, Hossein AnvariFar and Fahime Azizi: Alburnoides tabarestanensis, a new species of riffle minnow from the southern Caspian Sea basin in Iran (Actinopterygii: Cyprinidae), pp. 144-152

Abstract

Alburnoides tabarestanensis n. sp., is described from Tajan River in the southern Caspian Sea basin, Mazandaran Province, northern Iran. It is distinguished from the remaining Alburnoides species occurring in Iranian freshwaters by a combination of the following characters: a completely scaleless ventral keel; a terminal mouth with the tip of the mouth cleft between level of middle of pupil and lower margin of pupil; 47-52 lateral line scales to posterior margin of hypurals; 2.5-4.2 pharyngeal teeth; usually 16-18 scales around caudal peduncle; typically 39-41 total vertebrae; caudal vertebral region equal or slightly longer than abdominal region (most frequent vertebral formulae 19+20, 20+20 and 20+21); usually 8½ branched dorsal-fin rays; usually 12½ or 13½ branched anal fin rays; usually 7 branched pelvic fin rays; 11-13 branched pectoral fin rays; and usually 8 or 9 total gill rakers in the outer row on first left arch.