356 Mr. C T. Rogau 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. TV. H. W. Strachan, C.M.G.); 

 additional specimens from the Lower Niger, S. Nigeria, 

 vii. 1906 ((?. C. Dudgeon) ; Akwatcha, Bassa Province, 

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

 Province, N. Nigeria, 14. vii. 1905 {Dr. Dalziel, ])er Dr. J. H. 

 Asliworth) , and July 1907 (/. Brand) ; Little Koriga llivei-, 

 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. W. A. Densham). 



H'ippo centrum versicolor can easily be distinguished by the 

 wing-markings from Hippocentrum trimaculatum {Htemato- 

 pota trimaculata), Ncwstead (^ =.U(2matopota strifjipennis, 

 Karsch). 



XXXIX. — Descriptions of Three new C>/prinoid Fislips from 

 Yimnan, collected hy Mr. John Graham. By C Tate 

 Regan, M.A. 



Acantliorhodeus elongatus. 



Depth of body 3 to 3| in the length, length of head i to 

 4-',. Snout shorter ihan eye, the diameter of which is 2f in 

 the length o£ head and greater than the interorbital width. 

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

 in a longitudinal series, 5 to 6i 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 

 g 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 with the anal tin blackish. 



llah. Yunnan Fu. 



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



Using L. S. Berg^s valuable synopsis of the RhodeinsG 

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

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

 differs notably in the elongate body and the very oblique 

 terminal mouth. 



Berg distinguishes Acantliorhodeus from Achilognathus by 

 the piiaryngcal dentition, the former being defined as having 



