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†''Paraprosostenia'' is a fossil genus of prehistoric〔 freshwater snails, aquatic gastropod mollusks in the family Pomatiopsidae. == Species == Species within the genus ''Paraprosostenia'' include: * ''Paraprosostenia minuta'' Annandale, 1919 - type species, fossil of Pleistocene of Namma in northern Burma,〔Davis G. M., Kuo Y.-H., Elaine Hoagland K., Chen P.-L., Yang H.-M. & Chen D.-J. (1981). "''Kunmingia'', a New Genus of Triculinae (Gastropoda: Pomatiopsidae) from China: Phenetic and Cladistic Relationships". ''Proceedings of the Academy of Natural Sciences of Philadelphia'' 136: 165-193. (JSTOR ).〕 The length of the shell is 6 mm.〔 It was found in freshwater lake beds,〔〔 so it is presumed to be a freshwater species as is the case in all other Triculinae. Davis (1979) classified also four extant species within the genus ''Paraprosostenia''.〔 Later Davis (1981)〔Davis G. M. (1981). "Different Modes of Evolution and Adaptive Radiation in the Pomatiopsidae (Prosobranchia: Mesogastropoda)". ''Malacologia'' 21(1-2): (209 )-262. (table 1 ).〕 referred number of species in ''Paraprososthenia'' to be ten.〔 Subsequently Davis et al. (1981)〔 restricted the genus ''Paraprosostenia'' to the Pleistocene of Burma.〔 These four extant species were moved to the newly established genus ''Neoprososthenia'':〔 * (extant) ''Paraprososthenia hanseni'' Brandt, 1970〔 is a synonym of ''Neoprososthenia hanseni'' (Brandt, 1970)〔 * (extant) ''Paraprososthenia iijimai'' Brandt, 1970〔 is a synonym of ''Neoprososthenia iijimai'' (Brandt, 1970)〔 * (extant) ''Paraprososthenia levayi'' (Bavay, 1895)〔 is a synonym of ''Neoprososthenia levayi'' (Bavay, 1895)〔 * (extant) ''Paraprososthenia poirieri'' (Brandt, 1970)〔 is a synonym of ''Neoprososthenia poirieri'' (Brandt, 1970)〔 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「Paraprososthenia」の詳細全文を読む スポンサード リンク
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