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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 34, No. 4, 2013, pp. 368-373
Bioline Code: zr13057
Full paper language: English
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 34, No. 4, 2013, pp. 368-373

 en Sinocyclocheilus xichouensis check for this species in other resources , a new species of golden-line fish from the Red River drainage in Yunnan, China (Teleostei: Cypriniformes)
PAN, Xiao-Fu; LI, Lie; YANG, Jun-Xing & CHEN, Xiao-Yong

Abstract

In the present study, a new species of the genus Sinocyclocheilus check for this species in other resources Fang 1936, Sinocyclocheilus xichouensis check for this species in other resources , was described from the Ganhaizi tributary of Chouyang River, Red River drainage, located in southeast Yunnan, China. This species has normal eyes and a strong dorsal spine with serrations on the lower 3/5 part. In general, this species is similar in morphology to S. macrophthalmus check for this species in other resources , S. guishanensis check for this species in other resources , S. angustiporus check for this species in other resources , S. lateristritus check for this species in other resources , S. qiubeiensis check for this species in other resources , S. grahami check for this species in other resources , S. qujingensis check for this species in other resources , S. maculatus check for this species in other resources and S. purpureus check for this species in other resources distributed in the Nanpanjiang River, and S. qiubeiensis distributed in the Red River. It is distinguished from S. macrophthalmus by possessing fewer than 9 gill rakers. However, S. xichouensis can be distinguished from S. guishanensis by its interorbital width/SL of 8.1~9.9%, rostral barbels extended to posterior margin of eye and maxillary barbels extended to posterior preopercular. It is distinct from S. lateristritus by dorsal-fin origin opposite of pelvic fin origin, with no a black stripe along the lateral line. It is distinguished from S. grahami by 74~88 lateral-line scales, 20 scale rows above the lateral line, and 16 scale rows below the lateral line. It is distinguished from S. qujingensis by a curved lateral line, 74-88 lateral-line scales, 48 circumpeduncular scales. It can be distinguished from S. yimenensis by the ratio of predorsal length, dorsal-fin base length, preanal length, anal fin length, prepectoral length, caudal-peduncle length and lower jaw length to SL, 47.1%-53.7%, 12.8%-15.8%, 66.0%-71.0%, 13.7%-17.1%, 26.0%-29.5%, 19.3%-24.7%, 4.7%-7.0%, respectively. It is distinguished from S. maculatus and S. purpureus by possession of lateral line and scaled body and distinguished from S. angustiporus and S. qiubeiensis by 35~39 predorsal scales, 6 gill rakers, and interorbital width/SL of 8.1%-9.9%.

Keywords
New species; Sinocyclocheilus; Cavefish; Yunnan

 
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