Cottus pollux Günther, 1873
Japanese fluvial sculpin
Cottus pollux
photo by Suzuki, T.

Family:  Cottidae (Sculpins)
Max. size:  15 cm SL (male/unsexed); max. reported age: 4 years
Environment:  demersal; freshwater, amphidromous
Distribution:  Asia: in mountain streams of Honshu, Shikoku and Kyushu, Japan.
Biology:  Bottom-dwelling fish of mountain streams.
IUCN Red List Status: Least Concern (LC); Date assessed: 23 July 2018 Ref. (126983)
Threat to humans:  harmless

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