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2017 - vol. 34–39 >

Title :先島諸島における希少オカガニ類4 種の分布記録
Title alternative :Distributional records of four rare land crabs (Gecarcinidae) in Sakishima Island Group, southern Ryukyus, Japan.
Authors :藤田, 喜久
Authors alternative :Fujita, Yoshihisa
Issue Date :31-May-2017
Abstract :The distributions of four rare land crabs ofthe family Gecarcinidae, Discoplax rotunda (Quoy& Gaimard, 1824), Epigrapsus notatus (Heller,1865), Epigrapsus politus Heller, 1862 andGecarcoidea lalandii H. Milne Edwards, 1837, weresurveyed at the islands of the Sakishima IslandGroup (Miyako and Yaeyama Islands), southernRyukyus, Japan. The present study becomes the firstspecimen-based records of the above four land crabspecies for the following islands; D. rotunda fromTaketomi-jima, Hateruma-jima, and Yonaguni-jima;E. notatus from Shomoji-jima, Tarama-jima, andYonaguni-jima; E. politus from Irabu-jima, Shomojijima,Kurima-jima, Taketomi-jima, Kohama-jima, and Hateruma-jima; and G. lalandii from Haterumajima,Hatoma-jima, and Yonaguni-jima. The smallspecimens (but probably adult) of specimens of E.notatus (cw 16.5 and 18.9 mm) resemble E. villosusNg, 2003 to some extant in their fresh coloration andmorphology of the carapace and the ambulatory legs;it may suggest the possibility that E. villosus isindeed a young individual of E. notatus.
URL :http://w3.u-ryukyu.ac.jp/naruse/lab/Fauna_Ryukyuana.html
Type Local :雑誌掲載論文
ISSN :2187-6657
Publisher :琉球大学資料館 (風樹館)
URI :http://hdl.handle.net/20.500.12000/38802
Citation :Fauna Ryukyuana Vol.36 p.19 -26
Appears in Collections:2017 - vol. 34–39

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