Late Pliocene to Late Pleistocene; Recent.
Cuba to Virginia.
Original Description (from Conrad, 1834, p. 133):
"Shell small, triangular, compressed, with about thirteen acute concentric prominent lines; anterior slope rectilinear, angular at the extremity; basal margin rounded; beaks central, apex acute; lunule much elongated. Length and height nearly equal, about one fourth of an inch.
Locality. Suffolk, Virginia."
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