Abstract
Summary A new Acleioproct Cuthonid genus Toorna is described from the Australian fauna together with four new species, Nossis westralis. Eubranchus rubeolus, Trinchesia sororum and Toorna thelmae. Supplementary notes are added for Trinchesia viridiana and T . catachroma (Burn, 1962, 1963). Nossis Bergh ( 1902) is shown to be a Pleuroproct Coryphellid. Nossis and Eubranchus are new generic records for Australia.

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