Rissoidae: Powellisetia simillima (May, 1915) (‘similar rice-shell’)
Synonym(s): simillima May, 1915.
Typical shell-length 1.0 mm. Lives subtidally and offshore. Native. Endemic to southeastern Australia (NSW and TAS).
Classification
Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha
Superfamily: Rissooidea
Family: Rissoidae
Genus: Prolixodens
