Late Pliocene to Late Pleistocene; Recent.
Cuba to Georgia.
For information on the modern distribution of the species, see Malacolog.
Original Description (from Conrad, 1846, p. 24-25):
"Lentiform, equilateral, with concentric lamelliform striae, distant above, approximate towards the base: and with approximate radiating prominent lines; posterior side compressed towards the margin, and with one or two of the radiating striae larger than the rest; lunule large, ovate-acute, prominently striated; inner margin deeply crenulated.
Locality. Tampa Bay, Florida."
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