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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 Pyramidella mexicana ： ウィキペディア英語版 Pyramidella mexicana ''Pyramidella mexicana'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.〔Rosenberg, G. (2011). ''Pyramidella mexicana'' Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581279 on 2012-01-12〕〔Turgeon, D.; Quinn, J.F.; Bogan, A.E.; Coan, E.V.; Hochberg, F.G.; Lyons, W.G.; Mikkelsen, P.M.; Neves, R.J.; Roper, C.F.E.; Rosenberg, G.; Roth, B.; Scheltema, A.; Thompson, F.G.; Vecchione, M.; Williams, J.D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. American Fisheries Society Special Publication, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp.〕 ==Description== The large, robust shell has a broadly conic shape. Its color is dull brown. (The whorls of the protoconch are decollated). All but the last whorl of the fourteen whorls of the teleoconch are flattened, flatly shouldered and crenulated at the summit. The body whorl is inflated and well rounded. The periphery of the body whorl is marked by a strong sulcus. The sutures are channeled. The entire surface of the spire and the base is marked by lines of growth, which are quite prominent on the last turn. The base of the shell is inflated, strongly rounded, and with a slender fasciole at the insertion of the columella. The aperture is oval. The posterior angle is acute; slightly channeled anteriorly. The outer lip is thin, with a white band at the periphery, the remainder brown with darker colored lines,. It is reinforced deeply within by five spiral cords, two of which are posterior and three anterior to the periphery. The columella is stout, conic, with a strong lamellar fold at its insertion and two much more oblique ones anterior to it. 〔(Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 21-22: 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「Pyramidella mexicana」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.