A large hermit crab of the family Pagurusidae in the class Crustacea, with a carapace length of up to 5 cm (illustration). In the waters off Japan, this is a typical hermit crab that lives on rocky reefs at depths of 10 to 50 m. It is often caught in bottom gill nets for spiny lobsters, but on coral reefs it can be collected from the water's edge at low tide during spring tides. It is mostly found in the shells of Turban Shells in Honshu, and Turban Shells in the south. The cheliped legs are cylindrical and bilaterally symmetrical. Both the cheliped legs and ambulatory legs are characterized by numerous circular transverse stripes bordered by long setae. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
甲長5cmに達する甲殻綱オカヤドカリ科の大型ヤドカリ(イラスト)。日本近海では水深10~50mの岩礁に生息する代表的なヤドカリで,イセエビ用の底刺網によくかかるが,サンゴ礁では大潮の干潮時に波打ちぎわで採集することができる。本州ではほとんどサザエ,南方ではチョウセンサザエの貝殻に入っていることが多い。はさみ脚は円筒状で,左右相称。はさみ脚,歩脚とも長い剛毛で縁取られた環状の横筋が多数あるのが特徴的である。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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