Submarine cave hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea) from three islands of the Ryukyu Islands, southwestern Japan
Submarine cave hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea) from three islands of the Ryukyu Islands, southwestern Japan
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来自日本西南部琉球群岛三个岛屿的海底洞穴寄居蟹（甲壳类：十足目：Anomura：Paguroidea）
DOI：
10.11646/zootaxa.4560.3.3
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发表时间：
2019
期刊：
影响因子：
0.9
通讯作者：
FUJITA YOSHIHISA
中科院分区：
文献类型：
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作者：
OSAWA MASAYUKI;FUJITA YOSHIHISA
根据最近在日本西南部琉球群岛的三个岛屿(即冲绳岛和岛路群岛)的海底洞穴中采集的动物标本，报道了寄居蟹的种类。材料包括Digenidae 3属3种和Paguridae 4属11种。Catapaguroideslong gior Komai，Yamada Shirakawa，2010和Pylopaguropsis graata Asakura，2000，各自以前仅从正型中已知，并在本标本中观察到种内形态变异。本文还讨论了小井浅仓Pagurixus nourai Asakura，1995的颜色和形态变异。现有的CatapaguroidesForesti McLaughlin，2002，C.Longior和Pylopaguropsis graata的标本表明，这三个物种更喜欢海底洞穴内部更深的砂质或粉质底质，而不是珊瑚礁或石礁中其他隐蔽的栖息地。
Hermit crab species are reported on the basis of specimens collected by recent faunal surveys in submarine caves of three islands (Ie, Okinawa, and Shimoji Islands) of the Ryukyu Islands, southwestern Japan. The material includes three species in three genera of Diogenidae and 11 species in four genera of Paguridae. Catapaguroides longior Komai, Yamada Shirakawa, 2010 and Pylopaguropsis granulata Asakura, 2000, each previously known only from the holotype, are recorded with intraspecific morphological variation observed in the present specimens. Color and morphological variations of Pagurixus nomurai Komai Asakura, 1995 are also discussed. The present specimens of Catapaguroides foresti McLaughlin, 2002, C. longior, and Pylopaguropsis granulata suggest that the three species prefer the sandy or silty substrate in the deeper inner sites of submarine caves rather than other cryptic habitats in coral or rocky reefs.