Xiurenbagrus Explained

Xiurenbagrus is a genus of torrent catfishes (order Siluriformes) of the family Amblycipitidae. It includes three species.[1]

Taxonomy

X. xiurenensis was first described in 1981 as Liobagrus xiurenensis. However, it was realized that Liobagrus would not be monophyletic with the inclusion of this species, so Xiurenbagrus was erected. The genera Amblyceps and Liobagrus are sister group pair that is, in turn, sister to Xiurenbagrus.

Species

Distribution

X. gigas is known only from the Hongshuihe River which belongs to the Xijiang River, the largest tributary of the Pearl River basin in China.[3] X. xiurenensis inhabits the Pearl River, northward to Lijiang River near Guilin, Guangxi, southward to Zuojiang River near Longzhou, Guangxi.

Description

Xiurenbagrus species have a ventral mouth. The fin margins are pale. The adipose fin is not confluent with the caudal fin and has a free lobe.[4] X. gigas is the largest species of amblycipitid and grows to about 16.5 centimetres (6.5 in) SL.[3] X. xiurenensis is a small- to medium-sized amblycipitid, growing to about 10.7 cm (4.2 in) SL.[4]

Ecology

Little is known about the ecology of these fishes. X. xiurenensis is benthic and inhabits streams in the Nanling mountain range. The stomach contents have been studied to contain parts of arthropods.[4]

Notes and References

  1. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Carl J. Jr.. Ferraris. Zootaxa. 1418. 1–628. 2007. 10.11646/zootaxa.1418.1.1 .
  2. Xiu, L-H, J Yang & H-F Zheng, 2014. An extraordinary new blind catfish, Xiurenbagrus dorsalis (Teleostei: Siluriformes: Amblycipitidae), from Guangxi, China. Zootaxa 3835: 376–380
  3. A new species of amblycipitid catfish, Xiurenbagrus gigas (Teleostei: Siluriformes), from Guangxi, China. Yahui. Zhao. Lan, Jiahu . Zhang, Chunguang . Ichthyological Research. 2004. 51. 228–232. 10.1007/s10228-004-0220-z. 3. 2004IchtR..51..228Z .
  4. Xiurenbagrus, a New Genus of Amblycipitid Catfishes (Teleostei: Siluriformes), and Phylogenetic Relationships among the Genera of Amblycipitidae. Xiaoping. Chen. 1447027. Lundberg, John G. . Copeia. 1995. 4. 780–800. 10.2307/1447027. 1995.