3981 Sebastes melanostomus (Eigenmann & Eigenmann, 1890) Sebastidae Rockfishes, rockcods and thornyheads Sebastinae Perciformes/Scorpaenoidei Teleostei Blackgill rockfish Eastern Pacific: Washington, USA to central Baja California, Mexico. IGFA 32 N 118 W Sebastes melanostomus IGFA 32 N 118 W Sebastes melanostomus IGFA 32 N 118 W Sebastes melanostomus