Siphonariidae: Siphonaria tasmanica Tenison-Woods, 1876 (‘blue siphon-shell’)

Synonym(s): tasmanica Tenison-Woods, 1876 zonata Tenison-Woods, 1878 nereis Iredale, 1940 turritus Iredale, 1940.

Typical shell-length 25 mm. Lives intertidally attached to rocks, especially in exposed environments. Native. Endemic to southeastern Australia (TAS and VIC). In Tasmanian waters, this is a widespread species in S, less so in the N.