Two new species of Rhodeus (Teleostei: Cyprinidae: Acheilognathinae) from the River Yangtze, China

Title:

Two new species of Rhodeus (Teleostei: Cyprinidae: Acheilognathinae) from the River Yangtze, China

Creator:

Li, Fan , Liao, Te-Yu , and Arai, Ryoichi

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:28af90b4-1aed-41ad-9fe2-3c561d9aaf14
uuid:28af90b4-1aed-41ad-9fe2-3c561d9aaf14
doi:10.25225/jvb.19055

Subject:

taxonomy, bitterling, lateral line, breeding season, and egg size

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

Rhodeus cyanorostris sp. nov. and R. nigrodorsalis sp. nov. are described from two tributaries of the River Yangtze, in Sichuan and Jiangxi Provinces, China, respectively. Both species have a small number of branched dorsal-fin rays (both with a mode of 8) and anal-fin rays (mode of 7-8 and 8, respectively), which makes them easily distinguished from all congeners. Rhodeus cyanorostris sp. nov. differs from R. nigrodorsalis sp. nov. in having more predorsal scales (14-16 vs. 12-13), fewer pectoral-fin rays (10-11 vs. 12), a shorter major axis of the eggs (2.5-2.8 mm vs. mostly 3.3-3.5 mm), absence of two rows of light spots on the dorsal-fin rays (vs. presence), and absence of a black blotch on the dorsal fin in adult males (vs. presence). The breeding season in winter of the two new species is unique among the Acheilognathinae.

Language:

English

Rights:

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

Coverage:

1-17

Source:

Journal of Vertebrate Biology | 2020 Volume:69 | Number:1

Harvested from:

CDK

Metadata only:

false