Paracobitis Distributed in Erhai Area,Yunnan,China (Pisces:Cobitidae)

As a results of this research,it is now known that three species of the genus Paracobitis distribute in Erhai area,Yunnan,China,I.e.P.anguillioides Zhu et Wang from a spring near Yousuo,Eryuan County,P.erhaiensis Zhu et Cao from Wase,a small town in eastern bank of Erhai Lake and P.acuticephala sp.nov.from Haixihai Lake near Niujie,Eryuan County.Based on comparisons all Chinese Paracobitis specties,it is found that the three species belly of Erhai area is covered by scales and other Chinese Paracobitis species belly is naked.Otherwise,the three species distribution is so closed.These clue may imply that these three species is a natural group,they were derived from one ancestor.The differences of morphological characters among them are the result of species differentiation and the proofs for distinguishing them.Type specimens of new species are preserved in Department of Bilology,Yunnan University.