PectinidaPectinida is an order in the class Bivalvia, containing 588 described species.Scientific classificationRankTaxonDomainEukaryotaKingdomAnimaliaPhylumMolluscaClassBivalviaOrderPectinidaFamiliesPectinidae274Propeamussiidae151Spondylidae68Cyclochlamydidae27Anomiidae26Plicatulidae15Dimyidae13Placunidae6Streblochondriidae3Deltopectinidae2Entoliidae2Aviculopectinidae1