Rhiganthura sp.
Material examined.– Australia. Tasmania, Spiky Bridge Coastal Reserve, 8 km S of Swansea, reef in small bay below Spiky Bridge (42°08'S, 148°08'E), on small tunicates, 21 Mar 1988 (stn TAS 80), NMV J27639 (3 mancas to 3.6 mm).
Remarks: These three small specimens from shallow water in Tasmania are clearly members of this genus but the species can not be described until more mature specimens are available.