Caspian tyulka
Caspian tyulka, Clupeonella caspia, is a species of fish in the family Clupeidae. It is found in the Caspian Sea, also in the lower reaches of the rivers Volga, Ural, and possibly Terek. This is a brackishwater pelagic-neritic fish, up to 12 cm maximum length.[2] Previously the Caspian tyulka was considered to be a part of the more widespread Clupeonella cultriventris (subspecies C. cultriventris caspia), [3][4] but that species is now thought to inhabit the Pontic basin only. References
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