Ascidia glabra species has been reported off the Australian East Coast only recently (reviewed in Land, 2008). Individuals have been recorded off Arrawarra (New South Wales), Moreton Bay, Cape Venon, Heron Island, Wistari Reef, Gladstone, Bowen and Townsville (Queensland) (Kott, 1985). However, Ascidia glabra were previously recorded in Fremantle, Western Australia in the late 1920's (Hartmeyer & Michaelsen, 1928).