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''Depressizona'' is a genus of small to minute sea snails, marine gastropod molluscs or micromolluscs in the superfamily Scissurelloidea. ''Depressizona'' is the type genus of the family Depressizonidae. ''Depressizona'' is the only genus within the family Depressizonidae.〔 Taxon Depressizonidae was described as the subfamily Depressizoninae Geiger, 2003, in 2003. Then in 2005 it was considered to be a synonym of Scissurellinae in the family Scissurellidae according to the taxonomy of Bouchet & Roctoi (2005) and it has also been placed in Scissurellidae. In 2009 it was updated to the family level, Depressizonidae, when the second known species ''Depressizona axiosculpta'' was described.〔 ==Species== Genus ''Depressizona'' contains two species only: * ''Depressizona axiosculpta'' Geiger, 2009〔Geiger D. L. (2009). "A new species of ''Depressizona'' and the family rank of Depressizonidae". ''Zootaxa'' 2059: 57-59. (abstract ), (full article ).〕 It was described from only one specimen in poor condition known from Tonga. Geiger (2012) illustrated a second specimen in much better condition. * ''Depressizona exorum'' Geiger, 2003 - from Easter Island. Type species of the genus ''Depressizona''. 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「Depressizona」の詳細全文を読む スポンサード リンク
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