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Xolotrema
''Xolotrema'' is a genus (or subgenus under ''Triodopsis'') of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae. ==Shell description== Pilsbry (1940)〔Pilsbry, Henry A. (1940). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 823.〕 characterized the shell of ''Xolotrema'' (which he considered to be a subgenus) thus: "''Triodopses'', in which the inner margin of the basal lip has a long bladelike lamella, terminating at a notch where it joins the outher arc of the lip; the embryonic whorls are covered with close retractive radial striae (subobsolete in ''T. fosteri'')."
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「Xolotrema」の詳細全文を読む
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