336 Mr. G. A. Boulenger on nets 



Fig. 68. Melanophora zonognathus, sp. n., 5 . Vulva. 



Fig. 59. Ditto, S • Tarsus and palpal organ of riglit pedipalp from 



below. 

 Fig. 60. Melanophora humilis, sp. n., $. Vulva. 

 Fig.Ql. Ditto, c?. Tarsus and palpal organ of right pedipalp from 



below. 

 Fig. 62. Melanophora CNeili, sp. n., $ . Vulva. 

 Fig. 63. M elanophora corrugata, sp. n., $ . Vulva. 

 Fig. 64. Ditto, J . Right pedipalp from below. 

 Fig. 66. Melanophora arida, sp. n., ^ • ^ ulva. 

 Fig. 66, Alelanophora acanthognathus, sp. n., $ . Vulva. 



XLIII. — Descriptions of Txoonew African Species o/Barbus. 

 By G. A. BouLENGEK, F.R.S. 



The paradoxical .section of Barbels without barbels {Systomus^ 

 McClelland, Bleeker), long believed to be restricted to South- 

 eastern Asia, has, within the present century, received several 

 additions from Africa. Two further species are here described, 

 bringing the number of African species up to eight, which 

 may be distinguished by means of the following key : — 



A. Lateral line complete. 



Sc. 29-32 ij ; depth of body 3^ to 3f times in 



total length ; caudal peduncle twice as long [1906 (L. Victoria), 



as deep B. Magdalen<e, Dlgr., 



Sc. 28 ^ ; depth of body 3 times in total length ; 



caudal peduncle once and ^ as long as [1902 (Con^o). 



deep B. Brazzcc, Pellegr., 



Sc. 25 |-; depth of body 2i times in total [(S. Cameroon). 



length ; caudal peduncle as long as deep. . B. a&jnlus, sp. n. 

 Sc. 22-25 M; depth of body 2§ to 3^ times 



in total length ; caudal peduncle not or but [(Nile). 



slightly longer than deep B, anema, Blgr., 1903 



Sc. 23 5^; depth of body 3^ times in total 



length ; caudal peduncle once and | as long [(Congo ?). 



as deep B. trispilo^nimus, sp. n. 



B. Lateral line absent or reduced to a few tubules ; depth of body 

 equal or nearly equal to length of head, 3 to 3^ times in total 

 length. 



Sc. 22-25 |e|; origin of dorsal midway be- [1903 (Xji,,). 



tween end of snout and root of caudal .... B. stigmatopygus, Blgr., 



Sc. 20-23 p; origin of dorsal nearer end of u^^ Cameroon). 



snout than caudal B. J(e, lilgr., 1903 



Sc. 19-20 5! ; origin of dorsal midway between r/j^ile) 



cud of snout and root of caudal B. jnanilus, Blgr., 1901 



