Tasmanian scallops have a thin shell, nearly circular and strengthened by radiating ribs. In life the scallops rest on their paler, more convex lower valve which slightly overlaps the darker, flat or slightly concave upper valve. Tasmanian scallops are found in Australia's southern waters from mid New South Wales down and around to mid Western Australia. They are found to depths of at least 120 metres over bare, soft sand or mud.
Scallops feed by filtering plankton and detritus from the water.
They are preyed upon by starfish and octopus. Tasmanian scallops are taken commercially in NSW, Victoria and Tasmania. They are caught using box-shaped mud dredges 2m to 3.5m wide. The dredges may be fitted with teeth. As the dredge is dragged along the bottom, the teeth dig into the mud, lifting the scallops so that they are caught in the dredge basket.