来自日本小笠原群岛的帕利蟹科和十字蟹科（甲壳纲，十足目，短尾亚目，帕利蟹总科）的螃蟹，并描述了一个新物种。

Crabs of the families Palicidae and Crossotonotidae (Crustacea, Decapoda, Brachyura, Palicoidea) from the Ogasawara Islands, Japan, with the description of a new species.

作者信息

Takeda Masatsune, Tachikawa Hiroyuki

机构信息

Department of Zoology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki, 305-0005 Japan.; Email:

Coastal Branch of Natural History Museum and Institute, Chiba, 123 Yoshio, Katsuura, Chiba, 299-5242 Japan.; Email:

出版信息

Zootaxa. 2015 Jan 10;3918(1):141-50. doi: 10.11646/zootaxa.3918.1.7.

DOI:10.11646/zootaxa.3918.1.7

PMID:25781086

Abstract

Four species of palicoid crabs, Neopalicus jukesii (White, 1847) and Rectopalicus ampullatus Castro, 2000 of the family Palicidae, and Crossotonotus spinipes (De Man, 1888) and a new species of Pleurophricus A. Milne-Edwards, 1873 of the family Crossotonotidae, are recorded from the Ogasawara Islands, Japan. Diagnostics for the new species are the protruded bilobed front, six subacute lobate teeth at each lateral margin of the carapace, six rounded lobes at the posterior margin of the carapace, a crested armature of the cheliped carpus, and the strongly depressed ambulatory legs, which readily distinguish it from its two congeners, P. cristatipes A. Milne-Edwards, 1873 known by two males from Australia and the Kai Islands in Indonesia, and P. longirostris (Moosa & Serène, 1981) known by a female from the Sunda Strait, Indonesia.

摘要

在日本小笠原群岛记录到了四种扇蟹科螃蟹，分别是扇蟹科的朱克斯新扇蟹（Neopalicus jukesii，怀特，1847年）和壶形直扇蟹（Rectopalicus ampullatus，卡斯特罗，2000年），以及毛刺蟹科的刺足十字毛刺蟹（Crossotonotus spinipes，德曼，1888年）和一种新的隆背毛刺蟹（Pleurophricus，A. 米尔恩 - 爱德华兹，1873年）。新物种的鉴别特征为：额部突出呈双叶状，头胸甲每侧边缘有六个亚尖锐叶状齿，头胸甲后缘有六个圆形叶，螯足腕节有脊状装甲，以及步足强烈凹陷，这些特征使其易于与另外两种同属物种区分开来，即1873年由来自澳大利亚和印度尼西亚凯岛的两只雄性所知的隆背毛刺蟹（P. cristatipes，A. 米尔恩 - 爱德华兹），以及1981年由来自印度尼西亚巽他海峡的一只雌性所知的长额隆背毛刺蟹（P. longirostris，穆萨和塞雷纳）。