Mesodesmatidae – Mesodesmatinae: Atactodea cuneata (Lamarck, 1818) (‘wedge-shaped wedge-shell’)

Synonym(s): cuneata Lamarck, 1818 glabrella Lamarck, 1818 smithii Gray, 1853 praecisa Reeve, 1854 obtusa Crosse & Fischer, 1864 tasmanica Tenison-Woods, 1876.

Typical shell-length 25 mm. Pale periostracum readily worn off. Lives intertidally and subtidally in sand and mud, especially on sheltered shores. Native. Endemic to southeastern and southwestern Australia (NSW, TAS, VIC, SA and WA). In Tasmanian waters, this is a widespread species but only locally common, especially so around Flinders Island.