20 CVPRINID.^. 



3. No barbels. 



a. Lateral line complete ; dorsal witli 8 branched rays. 

 a. Mouth terminal or subinferior. 



Sc. 2'5-28 :]|, 2-21, 12 ; depth of body 3 times 



in total leno^th ; caudal peduncle li-l;3 



times as lon^ as deep 178. B. hrazzic, Pellegr., p. 180. 



Sc. 24-27 gi 21, 12 ; depth of body 2.1-2;^ 



times in total lengtli ; caudal peduncle 



not or but slightly longer than deep . . 17'.K B. aspiJns, Blgr., p. 181. 

 Sc. 22-25 ^, 2-U, 8-10 ; depth of body 



-i~^\ times in total length ; caudal 



peduncle not or but slightly longer than 



deep 180. B. anema, Blgr., p. 182. 



y3. Mouth inferior. 

 3- 

 Sc. 23 of, 2i, 8 ; depth of body 3^ times in 



total length ; caudal peduncle 1^ times as [p. 183. 



long as deep 181 B. trispilomimus, Blgr., 



h. Lateral line absent or reduced to a few tubules ; month terminal or 

 subinferior. 



a. Dorsal with 7 branched rays ; pectoral not reaching ventral. 



5- 

 Sc. 22-24 .vf, 1^, 10 ; orig-n of dorsal midway 



l)etween end of snout and caudal . . . 182. B. salessii, Pellegr., p. 183. 



3- 

 Sc. 20-23 gf, 2, 8 ; origin of dors:d nearer end 



of snout than caudal 183. jB. /fp, Blgr., p. 184. 



yS. Dorsal with 8 branched rays; pectoral reaching or nearly reaching 



^ ^^"^^•''^- [p. 185. 



Sc. 22-25 |fti' li 9-11 184. B. stigmatopufius, Blgr., 



Sc. 19-21 3, li 185. 7i. />?/m//?/5, Blgr., p. 18G. 



1. BARBUS TROPIDOLEPIS. 

 Bouleng. Ann. Mus. Congo, Zool. i. p. 133, pi. xlix. (1900), Poiss. Bass. Congo, 

 p. 228 (1901j, and Tr. Zool. Soc. xvi. 1901, p. 145, pi. xiii. tig. 2, and xvii. 

 1906, p. 549. 

 Depth of body 3 to 3^^ times in total length, length of head 4 to 4| 

 times. vSnout rounded, strongly projecting beyond mouth, 3 to 3J times 

 in length of head ; eye 3 (young) to 5J times in length of head, inter- 

 orbital width 2J to 2f times ; mouth inferior, its width 3^ to 4 times in 

 length of head ; lips moderately developed, continuous across the chin ; 

 anterior barbel usually absent, posterior very short. Dorsal III 9, 



