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Published: 2017-06-15

A new Schistura from the Pearl River in Guangxi, China (Teleostei: Nemacheilidae)

Kunming College of Life Sciences, University of Chinese Academy of Sciences, Kunming, 650204 Yunnan, China. State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223 Yunnan, China.
Pisces taxonomy river loach new species Changdonghe River West River Xijiang


Schistura paraxena, new species, is described from the Pearl River drainage in Laibin, Guangxi Province, China. The new species is easily distinguished from its congeners in having conspicuous peduncular crests along its dorsal and ventral extremities and a plain beige body coloration with crests brownish gray and a pale spot medially at caudal-fin base. Further characters useful to diagnose the species, but not unique to it, are: 8½ branched dorsal-fin rays; 11–12 pectoral-fin and 9 pelvic-fin rays; modally 38 vertebrae; predorsal length 50–52% SL; caudal-peduncle length 17–18% SL (88–92% HL; 5.6–5.8 times SL); lateral line complete; breast naked; predorsal area scaled; and upper lip not notched.



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