Cardium ciliatumFabricius, 1780, p. 410-411 [Basis of the current name] Type Locality: Greenland Range: 70°N to 42°N; 70.8°W to 56°W Depth: 11 to 23 m (live 11 to 23 m) Distribution: Greenland: East Greenland; Canada: Nunavut, Hudson Bay; USA: Maine, Massachusetts References: Procter (1933) DdLl
Cardium arcticum Sowerby II, 1841, [Synonym] References: Bernard (1983) s