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Issue: Vol. 877 No. 1: 1 Mar. 2005
Type: Articles
Published: 2005-03-01
DOI: 10.11646/zootaxa.877.1.1
Page range: 1–7
Abstract views: 38
PDF downloaded: 3

Neorhynchoplax yaeyamaensis, a new false spider crab (Decapoda: Brachyura: Hymenosomatidae) from the Yaeyama Group, the Ryukyu Islands, Japan

The 21st Century COE Project, Graduate School of Engineering and Science, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan Kuroshima Research Station, Sea Turtle Association of Japan, Kuroshima 136, Taketomi, Okinawa 907-1311, Japan
Department of Marine and Environmental Sciences, Graduate School of Engineering and Science, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan
Department of Marine and Environmental Sciences, Graduate School of Engineering and Science, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan
Crustacea Neorhynchoplax yaeyamaensis new species Hymenosomatidae Neorhynchoplax okinawaensis taxonomy

Abstract

A new false spider crab, Neorhynchoplax yaeyamaensis (Decapoda: Brachyura: Hymenosomatidae) is described from the Yaeyama Group, the Ryukyu Islands, Japan. Neorhynchoplax yaeyamaensis is morphologically close to N. exigua and N. aspinifera, however, N. yaeyamaensis is easily differentiated from the latter two species by the dentition of the ambulatory dactyli, and the shapes of the carapace, male abdomen, and G1. Neorhynchoplax okinawaensis, also found in the Ryukyu Islands, differs from N. yaeyamaensis by the presence of a posterior lateral tooth, and the shape of the carapace, male abdomen, and G1.

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