Alabama Three-Tooth

(Pilsbry, 1902)

Triodopsis alabamensis

Class:

Order:

Family:

Gastropoda

Stylommatophora

Polygyridae

Taxonomic Information

Polygyra alabamensis

Original Combination:

alabamensis = Alabama

Etymology

Original Description:

Shell depressed about like P. vannostrandi in general contour, yellowish brown, glassy, finely rib-striate above and below; umbilicate. Spire low dome shaped. Whorls about 6, very closely coiled, the last having the peripehry situated high;a trifle deflexed in front. Aperture oblique, lunate; peristome white, narrowly reflexed, thickened within, the out lip bearing a small, squarish tubercle, bent inward; basal lip bearing a marginal tubercle, abrupt on its outer, sloping or buttressed on its inner side. Parientlal lamella short, errect, a trifle curved. Alt. 6, diam. 11 1/2 mm. Auburn, Alabama. Types no. 82556 ANSP , collected by Carl F. Baker. The aperture is exceedingly similar to that of P. infecta, from which this species differs in the sculpture, closely coiled whorls and open umbilicus. P. craigini is more depressed, with fewer whorls. P. vannostrandi as differently proportioned teeth and less closely coiled.

Original Description Citation:

Pilsbry, H. A. (1902). New American land shells. The Nautilus. 16(3): 30-33., available online at https://www.biodiversitylibrary.org/page/1754303
page(s): 30-31

Ecological Information

Native/Inavsive:

Native

Nature Serve Conservation Status:

G4: Apparently Secure

Diet

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Citations

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