Hou Zhong

Bio: Hou Zhong is an academic researcher from Chinese Academy of Sciences. The author has an hindex of 1, co-authored 1 publications receiving 7 citations.

A new troglobitic species found in huayangdong cave, china(crustacea, amphipoda, pseudocrangonyctidae)

Abstract: Pseudocrangonyx cavernarius sp nov (Amphipoda, Pseudocrangonyctidae) from Huayangdong Cave in Anhui Province, China is described The new species can be distinguished from its congeners by the inner plate of maxilla 1 having four setae, the outer ramus of uropod 2 being about 66% of the length of the inner ramus, the ramus of uropod 3 being about 325 times as long as the peduncle and the telson being cleft for one-fifth of its length The affinity of Pseudocrangonyx cavernarius to related species is discussed

A Review of Progress in Chinese Troglofauna Research

Abstract: The darkness, humidity and constant temperature of subterranean karst caves have produced specialized populations of animals with, unique behaviors and characteristics. Based on living habits, troglofauna can be divided into troglobites, troglophiles and trogloxenes. Since the beginning of research on karst troglofauna in China in the late 1970s, 131 new species of troglofauna have been discovered. A large amount of research has been conducted on the behavior and characteristics of troglofauna, and good progress has been made over the last few decades. Nevertheless, in view of the wide distribution and large quantity of karst caves throughout China, there remains much potential for futher research on Chinese troglofauna.

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

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 based on 28S and COI sequences supported the species distinctness. A key to the genus Pseudocrangonyx with 22 species and a map of their distributions are provided.

Preliminary Analysis of Phylogenetic Relationships of the Asian-Pacific Endemial Subterranean Amphipod Genus Pseudocrangonyx Among Families and Genera of Crangonyctoidean Amphipods Inferred by Partial LSU rDNA Gene Sequences.

Abstract: To analyze the phylogenetic relationships of the genus Pseudocrangonyx within the superfamily Crangonyctoidea, we sequenced a partial LSU rDNA gene from four species (six specimens). The monophyly of Pseudocrangonyx and its affinity to Crymostygius were strongly supported by four reconstruction methods: neighbor-joining, minimum evolution, maximum-likelihood, and Bayesian inference. Current geographical distributions of the taxa studied and their phylogenetic relationships established in our study suggest that members of Pseudocrangonyctidae and Crymostygius diverged from a common Crangonyx-like ancestor in the Arctic Basin region of the northern hemisphere.

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

Abstract: A new species of pseudocrangonyctid amphipod, Pseudocrangonyx wonkimisp. nov., was found in the groundwater of a cave in the southwestern Korean Peninsula. Pseudocrangonyx wonkimisp. nov. is morphologically most closely related to P. joolaeiLee et al., 2020. However, P. wonkimi is clearly distinguished from P. joolaei by lacking sternal gills, fewer setae on maxilla 1 inner plate, fewer serrate robust setae on the carpus of the gnathopods, lacking bifid setae on the inner ramus of pleopod 3, and fewer articles of rami on pleopod 3. We also determined sequences of mitochondrial cytochrome c oxidase subunit I (COI) of P. wonkimisp. nov. for molecular diagnosis. From the molecular analysis based on COI sequences, P. wonkimi showed the closest relationship with P. joolaei with 15.1% genetic distance.