Abstract
Two new species of the muricid genus Dermomurex are described from southern Australia. The first of these, Dermomurex (Dermomurex) agnesae, from King George Sound, Western Australia, is the fifth known Australian member of this subgenus, which is found primarily in the New World, but also occurs in the Mediterranean. The second, Dermomurex (Viator) howletti, from St. Francis Isles, Nuyts Archipelago, South Australia, and Esperance, Western Australia, is the fifth taxon to be described in this exclusively Australian subgenus and the first living species from the southern part of the continent.