Premnas
Nota de aplicación
Genus comprised of a single species: Premnas biaculeatus, which inhabits lagoons and outer reef slopes in 1 to 16 metres. Commensal with sea anemones, usually Radianthus gelam. Also reported to be associated with the anemone Entacmaea quadricolor, found mainly in protected coastal waters and lagoons. Feeds primarily on zooplankton and benthic algae.