Epitoniidae: Opalia (Opalia) australis (Lamarck, 1822) (‘southern wentletrap’)

Synonym(s): australis Lamarck, 1822.
Typical shell-length 30 mm. Lives intertidally and subtidally amongst sea-anemones, especially n moderately exposed environments. Native. Endemic to southeastern and southwestern Australia (QLD, NSW, TAS, VIC, SA and WA). In Tasmanian waters, this is a widespread species; common in the N, where the shells tend to be larger; rarer to the S.