Utsusemi Sculpin
Cottus reinii
- Least concern
- Card rarity: Common
- Fish

Cottus reinii is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is endemic to Japan, occurring from Aomori to Wakayama prefectures in eastern Honshu and Tokushima and Kochi prefectures on Shikoku. It reaches a maximum length of 12.0 cm (4.7 in).
Classification
- Class
- Actinopterygii
- Order
- Perciformes
- Family
- Cottidae
- Genus
- Cottus