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The "sea urchin crab" ''Echinoecus pentagonus'' is a species of crab in the family Pilumnidae found from the Red Sea and East Africa to French Polynesia and the Hawaiian Islands. This crab is a parasite that lives in the rectum of a sea urchin. In Hawaii, it chooses only ''Echinothrix calamaris'', leaving few of these urchins unpopulated. Its curved and pointed carapace reaches only in width. Taxonomic synonyms of ''E. pentagonus'' include: *''Echinoecus klunzingeri'' Miyake, 1939 *''Echinoecus pentagonus'' Rathbun, 1894 *''Echinoecus rathbunae'' Miyake, 1939 *''Eumedon convictor'' Bouvier & Seurat, 1906 *''Eumedon pentagonus'' A. Milne-Edwards, 1879 *''Eumedonus petiti'' Gravier, 1922 *''Liomedon pentagonus'' Klunzinger, 1906 == 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「Echinoecus pentagonus」の詳細全文を読む スポンサード リンク
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