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''Powelliphanta'', common name the amber snails, is a genus of large, air-breathing, carnivorous land snails, terrestrial pulmonate gastropod molluscs in the family Rhytididae. As a group their survival status is endangered. == Taxonomy == The generic name was given in honour of New Zealand's malacologist Arthur William Baden Powell, and derived from the genus's similarity to ''Paryphanta''.〔 ''Powelliphanta'' was originally described by A. C. O'Connor in 1945 as a subgenus of ''Paryphanta''.〔 There are 21 species and 51 subspecies within the genus. The relationship between the species is complex, and it has been suggested that the group ''Powelliphanta gilliesi-traversi-hochstetteri-rossiana-lignaria-superba'' forms a ring species. In November 2003 a subspecies, thought to be extinct, was rediscovered alive on the West Coast; it had last been documented on the basis of shell fragments in 1934. 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「Powelliphanta」の詳細全文を読む スポンサード リンク
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