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Polycladus
''Polycladus'' is a genus of land planarians from South America, currently comprising a single species, ''Polycladus gayi''. == Description == ''Polycladus'' is a very understudied genus of land planarians. It was defined as land planarians with a wide, flat and leaf-like body, having the entire ventral surface ciliated and with mouth and gonopore posteriorly shifted in relation to other land planarians. The copulatory apparatus has a well-developed permanent penis and the female canal enters the genital antrum ventrally.〔Ogren, R. E. and Kawakatsu, M. (1990). ''Index to the specis of the family Geoplanidae (Turbellaria, Tricladida, Terricola) Part I: Geoplaninae.'' Bulletin of Fujis Women's College. 29: 79-166.〕 This definition, however, is incomplete regarding all anatomical structures currently considered in the definition of planarian genera.
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「Polycladus」の詳細全文を読む
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