This document is downloaded at: 2020-06-03T21:46:54Z Title Facultative commensalism of a free-burrowing urothoid amphipod with a deep burrow-dwelling callianassid shrimp in intertidal sand Author(s) Tamaki, Akio; Kagesawa, Takumi; Takeuchi, Seiji; Ohashi, Hirofumi; Yang, Soonbo; Sassa, Shinji Citation Marine Biology, 165(2), 36; 2018 Issue Date 2018-02 URL http://hdl.handle.net/10069/38335 Right © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. The original publication is available at www.springerlink.com NAOSITE: Nagasaki University's Academic Output SITE http://naosite.lb.nagasaki-u.ac.jp