Percottus glenii

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Chinese sleeper
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Odontobutidae
Genus: Percottus

Chinese sleeper (Amur sleeper; Percottus glenii Dybowski, 1877) - freshwater fish of Odontobutidae family.

Originally it was native to Amur River basin. Later it was introduced to fresh water rivers of the whole northern Eurasia including much of Russia, Ukraine, Poland, north-east of China and northeast of Korea.

It prefers to live in stagnant rivers and bogs. It eats animals, including other young fish and gnatworms.