356 Mr. C. T. Regan on new 



Northern and Southern Nigeria ; Uganda : type and three 

 other specimens from Lagos, S. Nigeria, taken on railway at 

 57^ miles camp, 12. vi. 1906, " very troublesome to horses " 

 (Dr. R. C. Hiscock, per Dr. W. H. TV. Strachan, C.M.G.); 

 additional specimens from the Lower Niger, S. Nigeria, 

 vii. 1906 (G. C. Dudgeon) ; Akwatcha, JBassa Province, 

 N. Nigeria, July 1906 (Dr. G. J. Pirie) ; Zungeru, Zaria 

 Province, N. Nigeria, 14. vii. 1905 {Dr. Dahiel, per Dr. J. H. 

 Ashworth) , and July 1907 (J. Brand) ; Little Koriga River, 

 N. Nigeria, 18. vii. 1907 (J. Brand) ; and the Nile Province, 

 Uganda, 1906, "caught on a native in camp; only specimen 

 seen" (the late Dr. TV. A. Densham). 



Hippocentrum versicolor can easily be distinguished by the 

 wing-markings from Hippocentrum trimaculatum (Htsmato- 

 pota trimaculatd) , Newstead (? = Hamatopola strigipennis , 

 Karsch). 



XXXIX. — Descriptions of Three new Cyprinoid Fishes from. 

 Yunnan, collected by Mr. John Graham. By (J. Tatu 

 Regan, M.A. 



Acaniltorhodeus elongatus. 



Depth of body 3 to 3§ in the length, length of head 4 to 

 4^. Snout shorter than eye, the diameter of which is 2f in 

 the length oE head and greater than the interorbital width. 

 Mouth terminal, very oblique ; no barbels. 36 to 38 scales 

 in a longitudinal series, 5 to 6\ in a transverse series from 

 origin of dorsal fin to lateral line, 4 or 5 between lateral 

 line and base of pelvic fin. Dorsal II 11-13 ; second spine 

 | to I the length of head, shorter than the anterior branched 

 rays ; free edge of the fin concave. Anal II 10-11 (12). 

 Pectoral sometimes reaching the pelvics, which extend nearly 

 or quite to the anal. Silvery ; back olivaceous ; a bluish 

 lateral stripe ; males w 7 ith the anal fin blackish. 



JIab. Yunnan Fu. 



Several specimens, 55 to 70 mm. in total length. 



Using L. S. Berg's valuable synopsis of the Rhodeinas 

 (Ann. & Mag. Nat. Hist. (7) xix. 1907, p. 106), this species 

 is found to be nearest to A. atranalis } Giinth., from which it 

 differs notably in the elongate body and the very oblique 

 terminal mouth. 



Berg distinguishes Acanthorhodeus from Achilognathus by 

 the pharyngeal dentition, the former being defined as having 



