THE WHITE-LIPPED SNAILS Genus POLYGYRA, Say Shell many-whorled, globose to flat-coiled, keeled or rounded, plain or banded; aperture plain or obstructed by three teeth; lips reflexed; foot long, narrow, granulated.
A large genus including Triodopsis and Mesodon of Rafi nesque. Its distribution centres in eastern North America, but there are several western species.
The Snail (P. albolabris, Say), familiar to many under the old name/ Helix, or the newer one, Triodopsis, or by any other, in fact, 4 still the same old horny yellow, white lipped snail, known by all woods rovers with, an eye for the small people who live under dead leaves and under prostrate, decaying logs. The spire is slightly elevated above the large, fifth whorl, whose rim is the thick, flanged white lip. Excess of white enamel fills the central pit, and a nodule of it forms a tooth on the inner lip. The only sculpture on the outside is the growth striation.
The long, slender, mottled body, the four "horns," the longest bearing the black eyes, the graceful movements and the glittering trail"— all are sources of wonder and delight to children of all ages. Yet how many foolish grown-ups have inherited or
acquired the aversion credited to the four-and-twenty tailors! Diameter, 1 inch. Eastern states.
P. Townsendiana, Lea,a handsome pitted snail, is yellowish brown, often mottled, and finely striated, with a thickened white peristome, shaped like a horseshoe, and no teeth to be seen. Diameter, a inch. Oregon and Washington.
P. devia, Gld., solid, six-whorled, brownish, low-spired, has a white lip, bent outward, and a tooth on the inner wall of the aperture. Several varieties occur in Oregon and Idaho. Diameter, I to I inch.
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