Eulimidae: Melanella obtusa (Laseron, 1955) (‘obtuse urchin-snail’)
Synonym(s): obtusa Laseron, 1955.
Typical shell-length 3.5 mm. Lives in offshore waters as an internal parasite of echinoderms. Native. Endemic to southern and eastern Australia (QLD, NSW, TAS, VIC and SA).
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha