Shasta hesperian

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Vespericola is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Polygyridae. Habitat These snails are found along the Pacific Coast of North America, from southern Alaska and British Columbia to California. Shell description The shells of these small to medium, globose or depressed globose snails are usually some shade of brown, sometimes without apertural teeth and sometimes with a single tooth on the parietal wall.

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