tri = three, dentata = teeth
Shell depressed, spire very little raised, brownish or born colour ; whorls five, crossed by numerous raised equidistant acute lines seperated by regular grooves ; aperture lunate, three toothed; teeth placed triangularly, one on the pillar lip situated diagonally; outer lip abruptly contracting the aperture, widely reflected and white, fernished with two of the teeth resembling projecting angles. Umbilicus moderate. Half an inch wide. Inhabits the middle states.
Original Description Citation:
Say, T. (1817). Conchology. - In: Nicholson, W.: American edition of the British Encyclopedia, or, dictionary of arts and sciences comprising an accurate and popular view of the present improved state of human knowledge. First Edition, A-3 - C-6 [= 1-20], pl. [1-4]. page(s): [unpaginated], pl. 2, fig. 1
Nature Serve Conservation Status: