Sinocyclocheilus longicornus (Cypriniformes, Cyprinidae), a new species of microphthalmic hypogean fish from Guizhou, Southwest China

By

Xu, Cheng
Luo, Tao
Zhou, Jia-Jun
Wu, Li
Zhao, Xingrui
Yang, Hongfu
XIAO, Ning
Zhou, Jiang

Type

Article

Date of Publication

2023

Original Publication

ZooKeys

Volume

1141

Pages

1--28

Subjects

Cave Fish , Morphology , Phylogeny , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1141.91501

 

Abstract

Sinocyclocheilus longicornussp. nov.is described from the Pearl River basin in Hongguo Town, Panzhou City, Guizhou Province, Southwest China. Based on the presence of the long horn-like structure on the back of the head,Sinocyclocheilus longicornussp. nov.is assigned to theSinocyclocheilus angularisspecies group.Sinocyclocheilus longicornussp. nov.is distinguished from its congeners by a combination of morphological characters: (1) presence of a single, relatively long horn-like structure on the back of the head; (2) pigmentation absent; (3) reduced eyes; (4) dorsal-fin rays, ii, 7; (5) pectoral-fin rays, i, 13; (6) anal-fin rays, iii, 5; (7) pelvic-fin rays, i, 7; (8) lateral line pores 38–49; (9) gill rakers well developed, nine on first gill arch; and (10) tip of adpressed pelvic fin not reaching anus.