Shih Hsi-Te, Naruse Tohru, Schubart Christoph D
Department of Life Science and Global Change Biology Research Center, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan National Chung Hsing University Taichung Taiwan.
Tropical Biosphere Research Center, Iriomote Station, University of the Ryukyus, 870 Uehara, Taketomi, Okinawa 907-1541, Japan University of the Ryukyus Okinawa Japan.
Zookeys. 2023 Sep 11;1179:169-196. doi: 10.3897/zookeys.1179.106718. eCollection 2023.
A new freshwater crab of the potamid genus Bott, 1967, is described from eastern Taiwan. sp. nov. is morphologically similar to (De Man, 1914) from western Taiwan, but can be distinguished by the morphology of the male first gonopod (G1), as well as by their mitochondrial DNA (16S rRNA and COI genes). In the G1 of , the subterminal segment shows a cline from robust in northern populations to slender in southern populations. In the G1 of , a distinctly larger and more distally directed keel-like projection is found on the distal inner edge of the terminal segment, with northern populations having an inward-curving subterminal segment and southern populations a straight subterminal segment. The genetic differentiation of the two species of within Taiwan is discussed, and morphological differences are compared. A key to the species of is also provided.
描述了一种来自中国台湾东部的新淡水溪蟹，属于束腹蟹属（Bott，1967）。新物种在形态上与来自台湾西部的（德曼，1914）相似，但可通过雄性第一性交接器（G1）的形态以及线粒体DNA（16S rRNA和COI基因）加以区分。在的G1中，亚末节呈现出一种渐变，即北方种群粗壮而南方种群细长。在的G1中，末节远端内缘有一个明显更大且更向远端的龙骨状突起，北方种群的亚末节向内弯曲，南方种群的亚末节则是直的。讨论了台湾岛内这两种的遗传分化，并比较了形态差异。还提供了该属物种的检索表。
