日本産Cytaeis uchidae Rees, 1962 (ヒドロ虫綱;タマクラゲ科)で発見された異型ポリプ

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概要

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• Laboratory observations revealed that colonies of the athecate hydroid Cytaeis uchidae Rees, 1962 on a gastropod host, Niotha livescens (Philippi), possessed heteromorphic polyps, characterized by highly elastic tentacles that were absent in normal polyps. Such tentacles were armed with huge basitrichous isorhiza-type nematocysts that did not occur in normal filiform tentacles. The tips of the highly elastic tentacles, in which abundant basitrichous isorhizas were concentrated, had the swollen appearance of capitate tentacles, such being characteristic of the suborder Capitata. Furthermore, the heteromorphic polyps were most frequently present on the periphery of the colonies along the aperture of the gastropod host.

• 2005-03-22

著者

• 並河 洋

  Showa Memorial Institute Tsukuba Research Center National Science Museum

関連論文

• 日本産Cytaeis uchidae Rees, 1962 (ヒドロ虫綱;タマクラゲ科)で発見された異型ポリプ

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