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Shell-Exchange Behavior in a Hermit-Crab-Like Tanaidacean (Crustacea : Malacostraca)

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Title: Shell-Exchange Behavior in a Hermit-Crab-Like Tanaidacean (Crustacea : Malacostraca)
Authors: Kakui, Keiichi Browse this author →KAKEN DB
Keywords: conchicolous
lifestyle
asymmetry
mobile shelter
convergence
evolution
Arthropoda
Peracarida
Issue Date: Dec-2019
Publisher: Zoological Society of Japan
Journal Title: Zoological Science
Volume: 36
Issue: 6
Start Page: 468
End Page: 470
Publisher DOI: 10.2108/zs190048
Abstract: This study describes shell-exchange behavior in the hermit-crab-like tanaidacean Macrolabrum sp. (Pagurapseudidae: Pagurapseudinae) under captive conditions. I observed one shell exchange by Macrolabrum sp., the behavioral sequence of which was as follows: a shell-carrying tanaidacean 1) grasped the edge of the aperture of an empty gastropod shell with its right cheliped; 2) inspected the condition inside the shell four times by inserting the anterior portion of its body into the shell; and 3) moved into the shell, posterior end (pleotelson) first. The elapsed time from the initial grasping of the empty shell to completing the move into it was 2 min 20 sec. In contrast to a Pagurapseudes tanaidacean and hermit crabs, the individual of Macrolabrum sp. did not examine the external surface of the shell during the single shell exchange observed.
Type: article
URI: http://hdl.handle.net/2115/79859
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 角井 敬知

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