Shells of this species are elongate, rectangular and white. They are expanded posteriorly and have a weak keel which extends from the rounded apex (umbo) to the posterior ventral margin. Exterior sculpture is of numerous fine concentric lines (striae), more prominent posteriorly, with area below apex (umbo) smooth. Shell up to 8 mm across.
The larvae of this species have shells and have been seen growing-up within the adult shell, attached by their byssal threads. Earlier authors included this species in a different family group, the Hiatellidae.
South-eastern Australia, excluding Tasmania.
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed