Two new hypogean species of Triplophysa (Cypriniformes: Nemacheilidae) from the River Yangtze drainage in Guizhou, China

Title:

Two new hypogean species of Triplophysa (Cypriniformes: Nemacheilidae) from the River Yangtze drainage in Guizhou, China

Creator:

Liu, Fei, Zeng, Zhi-Xuan, and Gong, Zheng

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:ffd67ac2-eaf8-47da-be05-7d237238efba
uuid:ffd67ac2-eaf8-47da-be05-7d237238efba
doi:10.25225/jvb.22062

Subject:

cavefish, morphology, and phylogenetic analysis

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

Two hypogean species of genus Triplophysa are herein described from two subterranean tributaries of the River Yangtze drainage in Guiyang City, Guizhou Province, China. Triplophysa wudangensis, new species, can be distinguished from its congeners by the combination of the following characters: eye reduced, with diameter 5.1-6.5% HL; interorbital width 33.1-35.8% HL; body scaleless; lateral line complete; posterior chamber of air bladder degenerated; anterior nostril with elongated barbel-like tip; distal margin of dorsal fin truncate; dorsal fin with 7, anal fin with 5, and caudal fin with 14 branched fin rays; vertebrae 4 + 34. Triplophysa qingzhenensis, new species, can be distinguished from its congeners by the combination of the following characters: eye reduced, with diameter 2.1-4.4% HL; interorbital width 25.1-30.4% HL; body scaleless; lateral line complete; posterior chamber of air bladder degenerated; anterior nostril with elongated barbel-like tip; distal margin of dorsal fin truncate; dorsal fin with 7-8, anal fin with 5, and caudal fin with 14 branched fin rays; vertebrae 4 + 36. Molecular phylogenetic analysis supported the validity of these two new species and indicated their close relationship with Triplophysa rosa.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

1-14

Source:

Journal of Vertebrate Biology | 2022 Volume:71 | Number:1

Harvested from:

CDK

Metadata only:

false