| Cobitidae (Spined loaches) |
| 8.8 cm TL (male/unsexed) |
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benthopelagic; freshwater; brackish |
| Europe: basins of Volga, Don, Kuban and Eya, rivers of Bok'shoi and Malyi Uzen, and brackish bays of the northern Caspian Sea. |
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Can be diagnosed based on its karyotypic formula: 2n = 50 (8 m + 18 sm + 24 sta), NF =76 (Ref. 76903). Distinguished from other species of the genus Cobitis in the following set of characteristics diagnostic for the species Cobitis melanoleuca: Canestrini’s organ in males is narrow, bottle-shaped, its plate usually extends no far than to the end of the third segment of fin ray articulated with it; near the base of caudal fin there are two elongated dark spots often connected with each other; scales small, oval, with a large center not covered with transverse furrows and a small number of rings (less than ten, more often four to five) along the margin (Ref. 76903). |
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Not Evaluated (N.E.) Ref. (130435)
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| harmless |
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