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| image = Semisulcospira libertina.jpg | image_caption = ''S. libertina'' partially covered by detritus, but showing its basal cords, an important identifying feature | image2 = Semisulcospira libertina shell.png | image2_caption = Drawing of an apertural view of an ''S. libertina'' shell | status = LC | status_system = IUCN3.1 | status_ref = 〔Madhyastha A. (2014). ("''Semisulcospira libertina''" ). The IUCN Red List of Threatened Species. Version e.T166281A1127046. | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Caenogastropoda clade Sorbeoconcha | superfamilia = Cerithioidea | familia = Semisulcospiridae | genus = ''Semisulcospira'' | species = ''S. libertina'' | binomial = ''Semisulcospira libertina'' | binomial_authority = (Gould, 1859)〔Gould A. A. (1859). "Descriptions of shells collected in the North Pacific Exploring Expedition under Captain Ringgold and Rodgers". ''Proceedings of the Boston Society of Natural History'' 7: (40 )-45. page 42.〕 | synonyms_ref = 〔 | synonyms = ''Melania libertina'' Gould, 1859 ''Melanoides libertinus'' ''Semisulcospira toucheana'' }} ''Semisulcospira libertina'' is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Semisulcospiridae. Widespread in east Asia, it lives in China, Korea and Japan. In some countries it is harvested as a food source. It is medically important as a vector of clonorchiasis, paragonimiasis, metagonimiasis and others. ==Taxonomy== The type specimens were collected by American scientist William Stimpson during the North Pacific Exploring and Surveying Expedition (1853–1856).〔 This species was originally described under the name ''Melania libertina'' by American malacologist Augustus Addison Gould in 1859.〔 The specific name ''libertina'' is from Latin language and means a "freedwoman". ''Semisulcospira libertina'' is the type species of the genus ''Semisulcospira'' by subsequent designation. Kuroda (1963)〔 Kuroda T. (1963). ''A catalogue of the non-marine mollusks of Japan including the Okinawa and Ogasawara Islands''. Malacological Society of Japan, Tokyo, 71 pp.〕 and Habe (1965)〔Habe T. (1965). ''Gastropoda, in the New Illustrated Encyclopedia of the Fauna of Japan''. Hokuryu-Kan Pub. Co., Tokyo, 14-208 pp.〕 considered ''S libertina'' a synonym of ''Semisulcospira bensoni''.〔 The "''S. libertina'' species complex" consist of three species: ''S. libertina'', ''S. reiniana'' and ''S. kurodai'', according to Davis (1969).〔 Placement of ''S. kurodai'' within this species complex was confirmed by Oniwa and Kimura in 1986.〔Oniwa K. & Kimura M. (1986). "Genetic variability and relationships in six snail species of the genus ''Semisulcospira''". ''The Japanese journal of genetics'' 61(5): 503–514. (CiNii ). 〕 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「Semisulcospira libertina」の詳細全文を読む スポンサード リンク
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