Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore. .
Zootaxa. 2021 Aug 6;5016(3):407-418. doi: 10.11646/zootaxa.5016.3.6.
Two new species of the gecarcinucid freshwater crab genus Arachnothelphusa are described from the Malaysian state of Sarawak in Borneo; one from Lanjak-Entimau Wildlife Sanctuary and another from Bako National Park. Arachnothelphusa rimba n. sp. is distinctive in possessing very long legs and a male first gonopod which has a cylindrical proximal part of the terminal segment, with the distal part sharply tapering to an acute tip. Arachnothelphusa bako n. sp. is superficially closest to A. kadamaiana from Sabah, but differs markedly by its narrower epistome, and proportionately shorter third maxillipeds and ambulatory legs.
本文描述了来自婆罗洲马来西亚沙捞越州的两种新的淡水蟹属 Arachnothelphusa 物种；一种来自兰杰克-恩蒂毛野生生物保护区，另一种来自巴科国家公园。Arachnothelphusa rimba n. sp. 的独特之处在于其拥有非常长的腿和雄性第一生殖器，其末端节的近端部分为圆柱形，远端部分急剧变细成锐角。Arachnothelphusa bako n. sp. 表面上与来自沙巴的 A. kadamaiana 最为接近，但因其较窄的上唇和相对较短的第三颚足和步行足而明显不同。
