A new subterranean species ofPseudocrangonyxfrom China with an identification key to all species of the genus (Crustacea, Amphipoda, Pseudocrangonyctidae).
A subterranean species ofPseudocrangonyx elegantulusHou,sp. n.is described from caves of Wulongdong National Forest Park in Henan Province, China.Pseudocrangonyx elegantulusis characterized by both male and female with calceoli on antenna II; urosomite III dorsal margin without armature; uropod III with peduncle 0.30 times as long as outer ramus and terminal article of the outer ramus a little shorter than adjacent spines; telson cleft 0.27 of its length. Phylogenetic analysis based on 28S and COI sequences supported the species distinctness. A key to the genusPseudocrangonyxwith 22 species and a map of their distributions are provided.
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, Hebei University, Baoding, Hebei 071002, China.
Shuangyan
S
Zhao
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
Zhonge
Z
Hou
COI distance; Pseudocrangonyx; cave; molecular phylogeny; taxonomy