Acar bailyi Bartsch 1931 (clam)
Alternative combination: Barbatia bailyi
Belongs to Acar according to E.V. Coan et al. 2000
Sister taxa: Acar celleporacea, Acar domingensis, Acar lamellosa, Acar plicata, Acar sandersonae, Arca (Acar) cheribonensis, Barbatia (Acar) aspera, Barbatia (Acar) gradata, Barbatia (Acar) trapeziformis
Ecology: stationary epifaunal suspension feeder