Oregon sport and commercial anglers commonly catch over 25 different species of rockfish. At least 13 additional species occur off Oregon that are infrequently caught. Many of these rockfish have similar characteristics and are difficult to tell apart. All but two species (the thorny heads Sebastolobus alascanus and Sebastolobus altivelis, or idiots) are included in the genus Sebastes. These species are collectively or individually called rockfish, rockcod, snapper, sea bass, and other names. Identification of rockfish species is desirable for good management.