Scalpellid barnacles (Cirripedia: Thoracica) from the northeastern and central eastern Australian continental shelf and slope

Eleven species of scalpellid barnacles are described from continental shelf and slope waters off northeastern and central eastern Australia. Nine of these species were collected by the Cidaris I expedition which sampled barnacles mainly from the continental slope of northeastern Queensland and the adjacent Coral Sea. The additional two scalpellid species were contained in the deep-water cirripede collections of the Queensland Museum, Brisbane, and the Australian Museum, Sydney. The species are fully described and illustrated since previous descriptions often have described conchology only and detailed descriptions, especially of arthropodal structures and of dwarf or complemental males, are either absent or are brief and inadequate. All the scalpellids collected by Cidaris I were first records from Queeland waters and, with the exceptions of Verum australicum Hoek and Anguloscalpellum pedunculatum (Hoek), first records from Australian waters. They were listed, but not described, in the recent catalogue of the Australian cirripede fauna (Jones et al., 1990). In the present contribution Trianguloscalpellum hirsutum sensu Jones et al. (1990) is regarded as a synonym of T. hamulus (Hoek), T. hamulus and A. persona are new records for Australian seas, and S. stearnsii is recorded from Queensland for the first time.