A new subterranean species of Pseudocrangonyx from China with an identification key to all species of the genus (Crustacea, Amphipoda, Pseudocrangonyctidae)

  title={A new subterranean species of Pseudocrangonyx from China with an identification key to all species of the genus (Crustacea, Amphipoda, Pseudocrangonyctidae)},
  author={Shuangyan Zhao and Zhonge Hou},
  pages={1 - 22}
Abstract A subterranean species of Pseudocrangonyx elegantulus Hou, sp. n. is described from caves of Wulongdong National Forest Park in Henan Province, China. Pseudocrangonyx elegantulus is 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… 

Figures and Tables from this paper

A new species of the genus Pseudocrangonyx (Crustacea, Amphipoda, Pseudocrangonyctidae) from Korea

A new subterranean species of pseudocrangonyctid amphipod is described from the interstitial waters in Daejeon, Korea and molecular phylogenetic analyses revealed that P. daeje onensis is a sister species of the unnamed PseudocrangONYx sp.

A New Stygobitic Species of the Genus Pseudocrangonyx (Crustacea: Amphipoda: Pseudocrangonyctidae) from Central Honshu, Japan

P. uenoi is closely related to P. daejeonensis Lee, Tomikawa, Nakano, and Min, 2018, but clearly distinguished from the latter by the presence of calceoli on female antenna 2, the 5-dentate lacinia mobilis of the left mandible, and the number of articles of rami of the pleopods.

Five new subterranean amphipods of the genus Pseudocrangonyx from Korea (Crustacea, Amphipoda, Pseudocrangonyctidae)

Five new species of stygobitic pseudocrangonyctid amphipods from Korean subterranean waters were examined and five new species were identified: PseudocrangONYx concavussp.

A new cave amphipod, Pseudocrangonyx wonkimi sp. nov. (Crustacea, Amphipoda, Pseudocrangonyctidae), from the Korean Peninsula

From the molecular analysis based on COI sequences, P. wonkimi showed the closest relationship with P. joolaei with 15.1% genetic distance.

Three new species of subterranean amphipods (Pseudocrangonyctidae: Pseudocrangonyx) from limestone caves in South Korea

Three new subterranean pseudocrangonyctid amphipod species are described from the groundwater of limestone caves in South Korea and molecular phylogenetic analyses revealed that the three new species formed a monophylum together with P. asiaticus.

Complete mitochondrial genome of Pseudocrangonyx joolaei (Crustacea: Amphipoda: Pseudocrangonyctidae)

A maximum-likelihood tree, constructed based on 26 eumalacostracan mitogenomes, confirmed that P. joolaei supported monophyly in the family Pseudocrangonyctidae and is most closely related to the superfamily CrangonyCToidea.

A New Species of the Genus Pseudocrangonyx (Crustacea: Amphipoda: Pseudocrangonyctidae) from Yonaguni Island, Southwestern Japan, and Historical Biogeographic Insights of Pseudocrangonyctids

Divergence dating indicates that the differentiation of major lineages of Pseudocrangonyx, which contains species from both the Asian continent and the Japanese Archipelago, is concentrated around 20 MYA.

New species and records of the subterranean amphipod genus Pseudocrangonyx Akatsuka and Komai (Crustacea: Pseudocrangonyctidae), representing the northernmost distribution of the group

The overall morphology of the genus Pseudocrangonyx was revisited using scanning electron microscopy, which revealed cellular (hexagonal) cuticular microsculpture of the body surface.



Studies on subterranean amphipod crustaceans of Primory, Russia. Part 1. Three new species of the genus Pseudocrangonyx from springs and other groundwater habitats in far eastern Russia.

Three new species of the subterranean amphipod of the genus Pseudocrangonyx from the South Primory, Far East of Russia are described and Phylogenetic analysis based on mt-cox1 sequences supported the species distinctness.


A new species ofphipoda from Huayangdong Cave in Anhui Province, China is described that can be distinguished from its congeners by the inner plate of maxilla 1 having four setae.

A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae)

Phylogenetic analyses using nuclear 28S rRNA and histone H3, and mitochondrial cytochrome c oxidase subunit I and 16S r RNA markers showed that P. gudariensis is placed among known Pseudocrangonyx Akatsuka and Komai, 1922 species, however, its exact phylogenetic position within the genus could not be determined.

Description of Gammarus Preciosus, a New Species of Freshwater Amphipod from Henan, China (Amphipoda, Gammaridae)

[A new species of gammaridean amphipod, Gammarus preciosus sp. nov., is described and illustrated based on specimens collected from the Baotianman Natural Reserve, Henan Province, China. This new

Crymostygidae, a new family of subterranean freshwater gammaridean amphipods (Crustacea) recorded from subarctic Europe

Crymostygidae, a new family of gammaridean amphipods (Crustacea), is described from Iceland based on a new species and genus found in spring inlets feeding Lake Thingvallavatn, south-west Iceland.


The phytochemical properties of Pseudocrangonyх elenae, sp.

Redescription of a Subterranean Amphipod, Pseudocrangonyx shikokunis (Crustacea: Amphipoda: Pseudocrangonyctidae) from Japan

1 Department of Science Education, Graduate School of Education, Hiroshima University, 1-1-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8524 Japan E-mail: tomikawa@hiroshima-u.ac.jp 2 Department

Diversification of low dispersal crustaceans through mountain uplift: a case study of Gammarus (Amphipoda: Gammaridae) with descriptions of four novel species

Most speciation events may have been driven by massive uplifting of the Luliang and Taihang mountains from the late Miocene to early Pliocene, and four new species are described.

Phylogeography and environmental diversification of a highly adaptable marine amphipod, Gammarus duebeni

Evidence is provided to suggest a pre-glacial divergence of these two clades, involving segregation between a region historically associated with the freshwater form and the majority of the marine localities on both sides of the Atlantic.