Acuticosta retiariaAcuticosta retiaria is a species in the genus Acuticosta, family Unionidae, order Unionida.Scientific classificationRankTaxonDomainEukaryotaKingdomAnimaliaPhylumMolluscaClassBivalviaOrderUnionidaFamilyUnionidaeGenusAcuticostaSpeciesAcuticosta retiaria