Late Pliocene to Early Pleistocene; Extinct.
Southern Florida to North Carolina.
Named by Olsson (1916). To access this change of name in its original formatting through the Biodiversity Heritage Library, click here.
Original Description (from Emmons, 1858, p. 265):
"Shell small, thick, sub-acute; whirls, seven or eight; apex sub-tuberculated, constricted above, and traversed spirally by rather coarse raised lines; apex papillated, and the first whirl is spirally lined, and without tubercles or short ribs. It is more widely constricted than the preceding."
To access this description in its original formatting through the Biodiversity Heritage Library, click here.