Genus of fishes
Xiurenbagrus is a genus of torrent catfishes (order Siluriformes) of the family Amblycipitidae. It includes three species.
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".
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. "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. "X. gigas" is the largest species of amblycipitid and grows to about 16.5 centimetres (6.5 in) SL. "X. xiurenensis" is a small- to medium-sized amblycipitid, growing to about 10.7 cm (4.2 in) SL.
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.
References.
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