Cottus leiopomus

The Wood River sculpin (Cottus leiopomus) is a species of fish in the family Cottidae. It is endemic to the Big Wood and Little Wood rivers and their tributaries upstream of Magic Reservoir in Blaine County, Idaho in the United States. Its habitat is similar to other sculpins: small to medium-sized streams that are cool and have swift currents. It is a species of concern because of its restricted distribution.