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The Valvifera are marine isopod crustaceans. Valviferans are distinguished, however, by the flat, valve-like uropods which hinge laterally and fold inward beneath the rear part of their bodies, covering the pleopods. Some species are omnivorous, and serve as effective scavengers in the economy of the sea. Eleven families are recognised: *Antarcturidae Poore, 2001 (17 genera) *Arcturidae Dana, 1849 (14 genera) *Arcturididae Poore, 2001 (one genus) *Austrarcturellidae Poore & Bardsley, 1992 (five genera) *Chaetiliidae Dana, 1849 (13 genera) *Holidoteidae Wägele, 1989 (three genera) *Holognathidae Thomson, 1904 (five genera) *Idoteidae Samouelle, 1819 (22 genera) *Pseudidotheidae Ohlin, 1901 (one genus) *Rectarcturidae Poore, 2001 (one genus) *Xenarcturidae Sheppard, 1957 (one genus) ==References== 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「Valvifera」の詳細全文を読む スポンサード リンク
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