Hemilepidotus hemilepidotus, the red Irish lord (US) or bullhead, is a species of fish in the family Cottidae. It is found in the northern Pacific ocean, from Russia to Alaska and as far south as Monterey Bay. The Red Irish Lord has a maximum recorded length of 51.0 cm, and a maximum recorded weight of 1,110 grams.It is predominantly red, with white, brown and black mottling and has 10-12 dorsal spines, 18-20 dorsal soft rays and 35 vertebrae. Hemilepidotus hemilepidotus lives in temperate, demersal marine environments between 66°N - 34°N. It usually lives close to rocky shores but can survive at depths as low as 450 meters. They are not harmful to humans, with the possible exception of injuring oneself on their various barbs and spines while handling one barehanded.