来自日本地下水域的伪钩虾属（甲壳纲：端足目：伪钩虾科）一新物种。
A new species of the genus Pseudocrangonyx (Crustacea: Amphipoda: Pseudocrangonyctidae) from subterranean waters of Japan.
作者信息
Shintani Aki, Umemura Shinya, Nakano Takafumi, Tomikawa K O
机构信息
Graduate School of Humanities and Social Sciences; Hiroshima University; 1-1-1 Kagamiyama; Higashihiroshima; Hiroshima 739-8524; Japan.
Fukui City Museum of Natural History; 147 Asuwakami-cho; Fukui 918-8006; Japan.
出版信息
Zootaxa. 2023 Jun 12;5301(3):383-396. doi: 10.11646/zootaxa.5301.3.4.
A new species of pseudocrangonyctid amphipod, Pseudocrangonyx asuwaensis, is described from subterranean water in a quarry on Mt. Asuwa "Nanatsuo-guchi", Fukui Prefecture, Japan. Pseudocrangonyx asuwaensis sp. nov. differs from its congeners in various morphological features, such as head without eyes, relative length of antennae 1, female antenna 2 without calceoli, length ratio of mandibular palp articles, setal numbers on maxillae 1 and 2 inner plates, absence of sternal gills, armature of urosomite 1, and shape of telson. Molecular phylogenetic analyses suggest that P. asuwaensis sp. nov. is clustered with P. komaii Tomikawa & Nakano, 2018, Pseudocrangonyx sp. 7 and Pseudocrangonyx sp. 8, and was the first of these species to diverge.
一种新的拟摇蚊科（Pseudocrangonyctid）端足目动物——浅羽伪摇蚊（Pseudocrangonyx asuwaensis），是从日本福井县浅羽山“七つ尾口”一个采石场的地下水中发现并描述的。浅羽伪摇蚊新物种在多个形态特征上与其同属物种不同，例如头部无眼、第一触角的相对长度、雌虫第二触角无钙质体、下颌触须各节的长度比、第一和第二上颚内板上的刚毛数量、无胸骨鳃、第一尾节的武装以及尾节的形状。分子系统发育分析表明，浅羽伪摇蚊新物种与小间伪摇蚊（P. komaii Tomikawa & Nakano, 2018）、伪摇蚊属物种7和伪摇蚊属物种8聚在一起，并且是这些物种中最先分化出来的。
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