Australian Sipunculoidea. I. The Genera Sipunculus, Xenosiphon, and Siphonosoma

Abstract

This paper deals with the Australian sipunculids of the genera Sipunculus, Xenosiphon, and Siphonosoma. Sipunculus angasi Baird, 1868, a species allied to S. nudus and S. robustus, is redescribed from south, south-eastern, and eastern Australia. A sipunculid from New South Wales is redescribed and assigned to the genus Xenosiphon. Siphonosoma cumanense (Keferstein 1867) and Siphonosoma vastum (Sel. and Biil. 1883) are redescribed from Queensland and Western Australia.