Triphoridae – Triphorinae: Obesula mamillata (Verco, 1909) (‘nippled sinistral-creeper’)
Synonym(s): mamillata Verco, 1909.
Typical shell-length 5.4 mm. Lives subtidally and offshore under rocks and stones. Native. Endemic to southeastern and southwestern Australia (TAS, VIC, SA and WA).
Classification
Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha
Superfamily: Triphoroidea
Family: Triphoridae
Subfamily: Triphorinae
Genus: Obesula