Alternative combinations: Anadara carolinensis, Arca (Barbatia) carolinensis, Arca carolinensis, Barbatia (Plagiarca) carolinensis, Dallarca carolinensis, Scapharca (Scapharca) carolinensis
Belongs to Barbatia according to L. W. Ward 1992
Sister taxa: Arca (Barbatia) gracilicostata, Arca (Barbatia) marylandica, Arca (Barbatia) nanggulanensis, Arca (Barbatia) oostinghi, Arca (Barbatia) strongi, Barbatia (Acar), Barbatia (Barbatia), Barbatia (Cucullaearca), Barbatia (Diluvarca), Barbatia (Granoarca), Barbatia (Hawaiarca), Barbatia (Mesocibota), Barbatia (Obliquarca), Barbatia (Rostarca), Barbatia aegyptiaca, Barbatia aspera, Barbatia axinaea, Barbatia consutilis, Barbatia corvamnis, Barbatia crustata, Barbatia culleni, Barbatia deusseni, Barbatia dissimilis, Barbatia gibba, Barbatia helblingi, Barbatia inglisia, Barbatia irregularis, Barbatia kayalensis, Barbatia legayi, Barbatia lignitifera, Barbatia limatella, Barbatia ludoviciana, Barbatia malaiana, Barbatia mauryae, Barbatia mississippiensis, Barbatia paradiagona, Barbatia pistachia, Barbatia pumila, Barbatia quilonensis, Barbatia rembangensis, Barbatia seraperta, Barbatia simulans, Barbatia subtrigonalis, Barbatia sundaiana, Barbatia uxorispalmeri, Barbatia wendti
Subtaxa: Dallarca carolinensis carolinensis, Dallarca carolinensis clisea, Dallarca carolinensis rotunda
Ecology: stationary epifaunal suspension feeder