Xiurenbagrus

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Xiurenbagrus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Amblycipitidae
Genus: Xiurenbagrus
Chen & Lundberg, 1995
Type species
Liobagrus xiurenensis
Yue, 1981
Binomial name

Xiurenbagrus gigas
Zhao, Lan & Zhang, 2004
Xiurenbagrus xiurenensis
(Yue, 1981)

Xiurenbagrus is a genus of catfishes (order Siluriformes) of the family Amblycipitidae. It includes two species, X. gigas and X. xiurenensis.[1]

Contents

[edit] 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.[2] X. gigas was described in 2004.[3]

[edit] 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.[2]

[edit] 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.[2] 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.[2]

[edit] 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.[2]

[edit] References

  1. ^ Ferraris, Carl J., Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa 1418: 1–628. 
  2. ^ a b c d e Chen, Xiaoping; Lundberg, John G. (1995). "Xiurenbagrus, a New Genus of Amblycipitid Catfishes (Teleostei: Siluriformes), and Phylogenetic Relationships among the Genera of Amblycipitidae". Copeia 1995 (4): 780–800. doi:10.2307/1447027. 
  3. ^ a b c Zhao, Yahui; Lan, Jiahu; Zhang, Chunguang (2004). "A new species of amblycipitid catfish, Xiurenbagrus gigas (Teleostei: Siluriformes), from Guangxi, China". Ichthyological Research 51: 228–232. doi:10.1007/s10228-004-0220-z.