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The Cliopsidae, common name sea angels, are a taxonomic family of small, free-swimming sea slugs, pelagic marine opisthobranch gastropod mollusks in the order Opisthobranchia. As is the case in all gymnosome pteropods, these sea angels lack a shell except during an early embryonic stage. The small lateral wing-like flaps (parapoda) are used in a slow swimming mode. The foot is reduced to three small median lobes. ==Genera and species== Genera and species within the family Cliopsidae include: Genus ''Cliopsis'' Troschel, 1854 * ''Cliopsis krohnii'' Troschel, 1854 〔 Troschel, Beiträge zur Kenntniss der Pteropoden, Archiv f. Naturgesch., Jáhrg. xx. p. 222, p1. x. figs. 2-4. 〕 Genus ''Pruvotella'' * ''Pruvotella danae'' Pruvot-Fol, 1942 * * Distribution : Bermuda, Oceanic * * Length : 10 mm 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「Cliopsidae」の詳細全文を読む スポンサード リンク
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