Bighead sculpin (Batrachocottus baicalensis)

General data
- Main name: Bighead sculpin
- Habitat: Freshwater
Classification
- Genus: Batrachocottus - Baikal sculpins
- Family: Cottidae - Cottids
- Order: Scorpaeniformes - Mail-cheeked fishes
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes