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''Patera'' is a genus of land snails in the family Polygyridae. The name is from the Latin ''patera'' ("a saucer"), and refers to the highly depressed, saucer-like shape of the shells of these snails. In addition to flattened shells, members of the group have an imperforate umbilicus and a single tooth on the parietal wall of the aperture.〔Pilsbry, H. A. (1940). Land Mollusca of North America (North of Mexico). ''Acad. Nat. Sci. Philadelphia'', Monograph 3, 1(2): 748.〕 These snails are known only from the eastern United States.〔Pilsbry, H. A. (1940). Land Mollusca of North America (North of Mexico). ''Acad. Nat. Sci. Philadelphia'', Monograph 3, 1(2): 747-761.〕 ==Species== Species include:〔(''Patera''. ) Integrated Taxonomic Information System (ITIS).〕 *''Patera appressa'' – flat bladetooth *''Patera binneyana'' – half-lidded oval *''Patera clarki'' – dwarf proud globe * * ''Patera clarki clarki'' * * ''Patera clarki nantahala'' – noonday globe *''Patera clenchi'' – Calico Rock oval, Clench's middle-toothed land snail *''Patera indianorum'' – lidded oval *''Patera kiowaensis'' – drywoods oval *''Patera laevior'' – smooth bladetooth *''Patera leatherwoodi'' – Pedernales oval *''Patera panselenus'' – Virginia bladetooth *''Patera pennsylvanica'' – proud globelet *''Patera perigrapta'' – engraved bladetooth *''Patera roemeri'' – Texas oval *''Patera sargentiana'' – grand bladetooth 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Patera (gastropod)」の詳細全文を読む スポンサード リンク
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