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''Diurodrilus'' is a genus of tiny marine animals that has traditionally been assigned to the annelid worms, although this affinity is not certain. With a maximum length of 0.45 mm, it has an unusual morphology with many traits not found in other annelids, including a ventral creeping foot. Analyses of DNA have both refuted and supported placement within the annelids,〔 with the unusual morphology perhaps due to evolutionary progenesis, in which organisms develop sexual maturity while retaining the larval traits of their ancestors.〔 The following species are recognised:〔 * ''Diurodrilus minimus'' Remane, 1925 * ''Diurodrilus ankeli'' Ax, 1967 * ''Diurodrilus benazzii'' Gerlach, 1953 * ''Diurodrilus dohrni'' Gerlach, 1952 * ''Diurodrilus subterraneus'' Remane, 1934 * ''Diurodrilus westheidei'' Kristensen & Niilonen, 1982 ==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「Diurodrilus」の詳細全文を読む スポンサード リンク
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