Dallocardia radulaDallocardia radula is a species in the genus Dallocardia, family Cardiidae, order Cardiida.Scientific classificationRankTaxonDomainEukaryotaKingdomAnimaliaPhylumMolluscaClassBivalviaOrderCardiidaFamilyCardiidaeGenusDallocardiaSpeciesDallocardia radula