Original Combination:

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Original Description:

Shell dextral, attenuated to an obtuse apex, white ; whorls six, glabrous ; mature deeply impressed ; labium bidentate; superior tooth lamiform, emarginate in the middle, and at the anterior tip obsoletely uniting with the superior termination of the labium ; inferior tooth placed upon the columella, and extending nearly at a right angle with the preceding ; labrum tridentate, teeth placed somewhat alternately with those of the labium, inferior tooth situated at the base and immediately beneath the inferior tooth of the labium. Length, about 1-10 of an inch. Inhabits East Florida. I formerly found it abundant on the banks of St. John's river, in E. Florida, and more particularly under the ruins of Fort Picolata, under stones, &c. It is about the size of P. corticaria, and considerably resembles that species, but is sufficiently distinguished by the circumstance, of its gradually decreasing in diameter from the body whirl, to its obtuse tip, and in the character of the mouth, it is widely distinct.