368 Annals of the South African Museum. 



Sc - 34 ~ 43 ^> %- 4 *- 16; D - iv , A iii 5; pos- 

 terior barbel f to 1$ diameter of eye 2. /;. holttbi, Stdv. 



Sc. 40-41 g, 3$-4$, 16-18; D. iii 8, A. iii o; 



posterior'barbel 1-1J diameter of eye . . . . 3. /;. Uneolatus, n. sp. 



7 

 Sc. 38 -, 8, 16 ; D. iii 8, A. ii 5 ; posterior barbel 



nearly as long as eye -1. H. ziiltteiisi*, n. sp. 



Sc. 33 ^, 3, 12 ; D. iii 8 ; its spine rather feeble, 



J a 



A. iii 5, reaching caudal ; barbels sub-equal, 



about 1J diameters of eye 5. /;. marequensis, A. Smith. 



(b) Dorsal with 9 branched rays. 

 Sc. 40 |, 3, 16 ; D. iv 9, A. iii o ; posterior barbel 



a little longer than eye 6. li. kimberleyensis, n. sp. 



2. Base of ventral below anterior rays or middle of dorsal. 

 (a) Lower Up restricted to the sides, lower jaw with angular edije. 



Sc. 36-38 |, 3-3$, 16 ; dorsal with 8 branched 

 rays ; posterior barbel as long as or a little 

 longer than eye . . 7. />. dephantis, Blgr. 



Sc. 29-30 ||, 2|, 12 ; dorsal with 9-10 branched 



rays ; posterior barbel -jf diameter of eye . . 8. B. sector, Blgr. 



r y 



Sc. 28^' 1, 14; dorsal with 9 branched rays; 



posterior barbel nearly as long as eye . . . . 9. Ii. cookci, n. sp. 



(b) Lower lip continuous across chin, fonnini/ a more or lexs well-developed 



mental lobe. 



Sc. 38 ^|, 3, 16 ; dorsal with 8 branched rays ; 



posterior barbel li times diameter of eye . . 10. /?. infongosi, n. sp. 



Sc. 28-29^?, 2-2$, 12; dorsal with 9 branched 

 rays : both lips well developed ; posterior 

 barbel f to as long as eye 11. K. briicn, Blgr. 



4? 

 Sc. 27 p, 2$, 12 ; dorsal with 10 branched rays ; 



posterior barbel as long as eye 12. I!, dwaarsenxis, n. sp. 



B. Last simple ray of dorsal not enlarged, or segmented down to its basal third 



anal with 5 branched rays. 



1. Ventral fin nearly wholly in advance of dorsal. 

 Both lips produced into median lobes. 



Sc. 38 |f, 3, 14 ; dorsal with 8 branched 

 rays, last simple ray segmented ; 

 posterior barbel 1$ times diameter of 

 eye 13. U. mt'iittilix, n. sp. 



