Squalius tenellus Heckel 1843

Can be diagnosed from its congeners in Western Balkans and Adriatic basin by the following characters: 76-85 scales on lateral line; ½ 15-17/1/6-7 scales in transverse row from dorsal to pelvic origins; 28-32 scales rows around caudal peduncle; and mouth terminal (Ref. 59043)

Inhabits slow-flowing and still waters and lakes. Enters subterranean waters during winter or droughts. In lakes, adults feed on small fishes. Threatened due to water abstraction, pollution and its small range. Its sharp decline in 20th century was attributed to habitat loss and pollution (Ref. 59043).

Squalius tenellus is a species of ray-finned fish in the family Cyprinidae. It is endemic to the Cetina River drainage in Croatia.

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Squalius tenellus Squalius generoko animalia da. Arrainen barruko Actinopterygii klasean sailkatzen da, Cyprinidae familian.