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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Odostomia telescopium ： ウィキペディア英語版 Odostomia telescopium ''Odostomia telescopium'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.〔WoRMS (2011). ''Odostomia telescopium'' Carpenter, 1857. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575914 on 2011-11-29〕 〔Keen M. (1971). Sea shells of Tropical West America. Marine mollusks from Baja California to Perú. (2nd edit.). Stanford University Press pp. 1064〕 ==Description== The white shell has a very elongate-conic shape. Its length measures 3.1 mm. The two whorls of the protoconch form a moderately elevated helicoid spire which is about one-half obliquely immersed in the first of the succeeding turns. The six whorls of the teleoconch are almost flattened, strongly contracted at the suture and strongly shouldered at the summit. They are marked by strong, vertical, axial ribs, of which 18 occur upon the first, 22 upon the second, 20 upon the third, 22 upon the fourth and penultimate turn. In addition to the axial ribs the whorls are marked by four slender, spiral cords which do not render the ribs tuberculate. The spaces between the cords and the ribs are deep round pits. The sutures are channeled. The periphery of the body whorl are marked by a groove. The base of the shell is somewhat attenuated anteriorly, well rounded posteriorly. It is marked by seven spiral cords which become somewhat diminished in size from the periphery to the umbilical region. The grooves separating the cords are marked by numerous slender axial threads. The aperture is irregularly pyriform, and effuse anteriorly. The posterior angle is acute. The outer lip is thin, showing the external sculpture within. The columella is moderately stout, reflected, reinforced by the base. It is provided with a fold at its insertion. The parietal wall is covered with a thin callus. 〔 (A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68,p. 139-140; 1909 ) 〕 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「Odostomia telescopium」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.