ABSTRACT

Four new species of the family Pseudocrangonyctidae from the Russian Far East are described and illustrated – Pseudocrangonyx spangsbergi sp. nov. and P. setosus sp. nov., both in Sakhalinskaya Oblast; P. myaochanicus sp. nov., in Khabarovsky Kray; and P. borealis sp. nov., in Magadanskaya Oblast. The affinities of the new species are discussed. New morphological data and DNA barcode data are also provided for Pseudocrangonyx camtschaticus Birstein, 1955, from a population adjacent to the type locality. The overall morphology of the genus Pseudocrangonyx was revisited using scanning electron microscopy, which revealed cellular (hexagonal) cuticular microsculpture of the body surface. The species diversity and geographic distribution of the East Asian stygobiotic pseudocrangonyctid amphipods are briefly reviewed. An identification key to the genus Pseudocrangonyx, with 31 species, is provided.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:EB2A6400-0333-496B-8345-68C1ECEF06A4

摘要

描述并举例说明了来自俄罗斯远东地区的四个新物种：假单胞菌科-Pseudocrangonyx spangsbergi sp。十一月 和P. setosus sp。11月，都在萨哈林州（Sakhalinskaya Oblast）；P. myaochanicus sp。11月，在Khabarovsky Kray；和P.borealis sp。11月，在Magadanskaya Oblast。讨论了新物种的亲和力。还从邻近该类型地点的种群中为Pseudocrangonyx camtschaticus Birstein（1955年）提供了新的形态学数据和DNA条形码数据。假单胞菌属的整体形态使用扫描电子显微镜重新检查了该细胞，显示了体表的细胞（六角形）表皮显微术。简要回顾了东亚风格生物拟c鱼两栖纲动物的物种多样性和地理分布。提供了具有31种的Pseudocrangonyx属的识别码。

http://www.zoobank.org/urn:lsid:zoobank.org:pub:EB2A6400-0333-496B-8345-68C1ECEF06A4