Acanthocardia echinata, the prickly cockle or European prickly cockle, is a species of saltwater clam, marine bivalve molluscs in the family Cardiidae. The genus Acanthocardia is present from the Upper Oligocene to the Recent. The prickly cockle was one of the many invertebrate species originally described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae, where it was given the binomial name Cardium echinatum. * Acanthocardia echinataRight valve * Acanthocardia echinataLeft valve * Acanthocardia echinata duregniRight valve * Acanthocardia echinata duregniLeft valve * *