Acar plicata Dillwyn 1817
Alternative combinations: Arca (Acar) plicata, Arca plicata, Barbatia (Acar) plicata, Barbatia plicata
Belongs to Acar according to T. Okutaini 2000
Sister taxa: Acar bailyi, Acar celleporacea, Acar domingensis, Acar lamellosa, Acar sandersonae, Arca (Acar) cheribonensis, Barbatia (Acar) aspera, Barbatia (Acar) gradata, Barbatia (Acar) trapeziformis