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''Notodiaphana fragilis'' is a species of marine snail, gastropod mollusk in the clade Architectibranchia.〔 ''Notodiaphana fragilis'' is the only species in the genus ''Notodiaphana''. Genus ''Notodiaphana'' is the only genus in the family Notodiaphanidae.〔Malaquias M. A. E., Dodds J. M., Bouchet P. & Reid D. G. (2009). "A molecular phylogeny of the Cephalaspidea sensu lato (Gastropoda: Euthyneura): Architectibranchia redefined and Runcinacea reinstated". ''Zoologica Scripta'' 38(1): 23-41. .〕 It has been classified in the superfamily Diaphanoidea. ==Shell description== The little-known species have small, flimsy, almost globular shells, known as paper bubble shells. The shell is minute, thin, fragile, colorless to translucent, and usually less than 5 mm in size. The overall shape is ovate, pear-shaped, and bulbous. There is a sunken apex. The shells resemble those of the genus ''Haminoea''. 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「Notodiaphana fragilis」の詳細全文を読む スポンサード リンク
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