@article{oai:kochi.repo.nii.ac.jp:00001480, author = {伊谷, 行 and 伊地知, 稔 and 上田, 拓史}, journal = {CANCER:会員連絡誌}, month = {May}, note = {application/pdf, Symbiotic association of the varunid and pinnotherid crabs with the burrows of the echiuran Urechis unicinctus was investigated at the tidal flats in Hiuchi-nada, the central Seto Inland Sea, Japan. At the study sites, sediment rich in the burrows of U. unicinctus was carefully dug and checked for the presence or absence of the symbiotic crab. Because the tidal flats were densely inhabited by upogebiid and callianassid burrowing shrimp, only the crab that was found very close to the body of U. unicinctus in its burrow was regarded as a symbiont of the echiuran. As a result, four specimens of Acmaeopleura balssi and one specimen of A. toriumii (Varunidae) and six specimens of Pseudopinnixa carinata (Pinnotheridae) were found associated with the burrows of U. unicinctus.}, pages = {1--4}, title = {瀬戸内海燧灘でユムシの巣穴から採集されたカニ類}, volume = {14}, year = {2005} }