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''Phreatodrobia'' is a genus of very small or minute freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Lithoglyphidae.〔Hershler R. & Thompson F. G. (1990). "''Antrorbis breweri'', a new genus and species of hydrobiid cavesnail (Gastropoda) from Coosa River Basin, northeastern Alabama". ''Proceedings of the Biological Society of Washington'' 103(l): 197-204. (PDF ).〕 The generic name ''Phreatodrobia'' is derived from the Greek word "phreatos" which means ground water, as in phreatic,〔 and from the suffix ''-drobia'' based on family name Hydrobiidae (where it was originally classified), which means "living in water". ==Species== Species within the genus ''Phreatodrobia'' include: * ''Phreatodrobia conica'' Hershler & Longley, 1986〔 * ''Phreatodrobia coronae'' Hershler, 1987〔Hershler & Longley (1987). "Phreatodrobia coronae, a New Species of Cave Snail from Southwestern Texas". ''The Nautilus 101(3): (133 )-139.〕 * ''Phreatodrobia imitata'' Hershler & Longley, 1986〔 - mimic cavesnail * ''Phreatodrobia micra'' (Pilsbry & Ferriss, 1906) - type species〔 * ''Phreatodrobia nugax'' (Pilsbry & Ferriss, 1906)〔 * * ''Phreatodrobia nugax inclinata'' Hershler & Longley, 1986〔 * ''Phreatodrobia plana'' Hershler & Longley, 1986〔 * ''Phreatodrobia punctata'' Hershler & Longley, 1986〔 * ''Phreatodrobia rotunda'' Hershler & Longley, 1986〔 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「Phreatodrobia」の詳細全文を読む スポンサード リンク
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