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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 Helicodonta obvoluta ： ウィキペディア英語版 Helicodonta obvoluta ''Helicodonta obvoluta'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicodontidae. The distribution of this species is spread over large parts of Europe, where it inhabits deciduous and mixed forests. This species is sometimes called the "cheese snail" because the shape of the shell resembles that of a wheel of cheese. == Description == Shells of juveniles and young adults of this snail are typically covered with hairs 1mm in length. The hair may be absent in older specimens. The dark-brown shell is characterized by a flat upper side with a very slightly sunken spire and a wide umbilicus. The peristome is flattened above and below. The white everted lip is slightly thickened centrally to form a callus in the palatal and parietal region, therefore the mouth seems to be separated into three embayments in some specimens.〔Kerney M.P. & Cameron R.A.D. (1979): Land snails of Britain and North-West Europe. Collins, London.〕 The shell diameter ranges from 10-15mm; the shell height from 5-7mm.〔Maltz,T. K.(2007):Shell Variation in ''Helicodonta obvoluta'' (Gastropoda: Pulmonata: Helicidae s. lato). Folia Malacologica 15/1: 1-23.〕 The weight of the adult living snail is about 414.2±6.7 mg.〔Boch S., Prati D., Werth S., Rüetschi J. & Fischer M. (2011). "Lichen Endozoochory by Snails". ''PLoS ONE'' 6(4): e18770. .〕 In contrast to many other snail species within the superfamily Helicoidea, this species has no love darts.〔Shileyko, A.A. 2006. Treatise on recent terrestrial pulmonate molluscs. Part 14: Helicodontidae, Ciliellidae, Hygromiidae. Ruthenica, Supplement 2: 1907-2041〕 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「Helicodonta obvoluta」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.