著者

Hiroshi Namikawa

出版者

National Museum of Nature and Sciece

雑誌

国立科学博物館研究報告A類(動物学) (ISSN:18819052)

巻号頁・発行日

vol.48, no.1, pp.1-4, 2022-02-22 (Released:2022-02-22)

参考文献数

9

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In addition to polyps of the anthoathecate hydroid Koellikerina bouilloni previously reported exclusively on old, eroded shells of live gastropods (Nassarius festivus) in Ibaraki Prefecture, Japan, the polyps of three additional epizoic anthoathecate hydroid species (Dicoryne conybearei, Stylactaria misakiensis and Leuckartiara sp.) were found on similar condition N. festivus shells in different localities in Japan. Because polyps of these hydroid species were not found on fresh shells, it is suggested that N. festivus could avoid colonization by the hydroids whilst occupying fresh shells, but not older eroded ones, the latter therefore providing a suitable substrate for the hydroid polyps.