Cystiscidae – Cystiscinae: Cystiscus subauriculatus (May, 1915) (‘eared margin-shell’)
Synonym(s): subauriculatus May, 1916.
Typical shell-length 1.8 mm. Lives in offshore waters under rocks and stones. Native. Endemic to southeastern and southwestern Australia (NSW, TAS, VIC, SA and WA).
Classification
Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Neogastropoda
Superfamily: Muricoidea
Family: Cystiscidae
Subfamily: Cystiscinae
Genus: Cystiscus