Graduate School of Engineering and Science; University of the Ryukyus; 1 Senbaru; Nishihara; Okinawa 9030213; Japan.
Okinawa Prefectual University of Arts; 1-4 Shuri-Tounokura; Naha; Okinawa 903-8602; Japan.
Zootaxa. 2024 Mar 5;5419(1):121-129. doi: 10.11646/zootaxa.5419.1.5.
A new hermit crab species of Paguridae, Trichopagurus spinibrachium n. sp., is described on the basis of a single male specimen collected from the anchialine environment of a semi-submerged marine cave in Okinawa Island, Ryukyu Islands, southwestern Japan. It is morphologically similar to T. macrochela Komai & Osawa, 2005 and T. tenuidactylus Komai, 2013, but differs in the shape and armature of the ocular, antennular and antennal peduncles, chelipeds, and ambulatory legs. The new species may be distinguished from all known congeners by the stronger armature of the carpi and meri of both chelipeds. Trichopagurus spinibrachium n. sp. is the third species of the genus recorded from submarine caves, although it may also occur on nearby coral reefs as does T. macrochela and T. trichophthalmus (Forest, 1954).
一种新的寄居蟹科 Paguridae 物种， Trichopagurus spinibrachium n. sp.，是基于在日本西南部琉球群岛冲绳岛一个半淹没的海洋洞穴的潮间带环境中采集的一个单一雄性标本描述的。它在形态上与 Komai & Osawa, 2005 年的 T. macrochela 和 Komai, 2013 年的 T. tenuidactylus 相似，但在眼柄、触角和触角足、螯足和步行足的形状和装甲上有所不同。新种与所有已知近缘种的区别在于两个螯足的腕节和长节的装甲更强。Trichopagurus spinibrachium n. sp. 是记录的第三个来自海底洞穴的属种，尽管它也可能出现在附近的珊瑚礁上，就像 T. macrochela 和 T. trichophthalmus (Forest, 1954) 一样。
