Eulimidae: Hemiliostraca joshuana (Gatliff & Gabriel, 1910) (‘Joshuan urchin-snail’)
Synonym(s): joshuana Gatliff & Gabriel, 1910.
Typical shell-length 3.0 mm. Lives subtidally and offshore as an internal parasite of echinoderms. Native. Endemic to southeastern and southwestern Australia (TAS, VIC, SA and WA).
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha