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''Alviniconcha'' is a genus of deep water sea snails, marine gastropod mollusks in the family Provannidae.〔Bouchet, P. (2013). Alviniconcha Okutani & Ohta, 1988. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=449922 on 2013-06-25〕 These snails are part of the fauna of the hydrothermal vents in the Indian and Western Pacific Ocean. These and another genus and species within the same family (''Ifremeria nautilei'') are the only known currently existing animals whose nutrition is derived from an endosymbiotic relationship with proteobacteria: a member of bacteria from class Epsilonproteobacteria occurs as an endosymbiont of the gills of ''Alviniconcha hessleri''.〔Yohey Suzuki, Takenori Sasaki, Masae Suzuki, Yuichi Nogi, Tetsuya Miwa, Ken Takai, Kenneth H. Nealson & Koki Horikoshi (September 2005) "Novel Chemoautotrophic Endosymbiosis between a Member of the Epsilonproteobacteria and the Hydrothermal-Vent Gastropod ''Alviniconcha'' aff. ''hessleri'' (Gastropoda: Provannidae) from the Indian Ocean". ''Applied and Environmental Microbiology'', 71(9): 5440-5450. 〕 __NOTOC__ ==Description== The size of the shell varies between 25 mm and 30 mm. The surface of the shell is studded with hairs on the periostracum, Individuals variation in shell size and the arrangement of the hairs, but the variation does not correspond to individual species.〔 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「Alviniconcha」の詳細全文を読む スポンサード リンク
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