346 



CTPRIXID.E. 



Lake Tsana and upper tributaries of Blue Nile; Omo River; 

 Kilimnndjaro. — Types in Senckenberg Museum, Frankfort (M.). 



Mr. E. Degen (C). 

 Mr. P. C. Zaphiro (C.) ; 

 W. X. McMillan (P.). 



1-3. Ad. & hgr. 

 4-7. Ad. 



8. Skel. 



9. Ad. 

 10-11. Ad. 



12-17. Ad. 

 18-19. Ad. & hgr. 



Bahardar, Lake Tsana. 

 Matti R., affluent of Gudar R. 

 (Blue Nile). 



■>} 55 55 



Didessa R. (Blue Nile), 1500 ft. 

 Juju R., affluent of Didessa R., 



2000 ft. 

 Gibe R. (Omo), 2800 ft. 

 Nairobi R., Kiliinandjaro, 



G500 ft. 



A. B. Percival, E><i. (C). 



2. DISOOGXATHUS JOHNSTOXIL 

 Bouleng. Proc. Zool. Soc. 1901, ii. p. 1'>'X and Fi.-^h. Xilo, p. ISl, pi. xxxii. fig. 2 

 (1907). 

 Body feebly compressed, its depth equal to length of head and 5 times 

 in total length. Head moderately depressed, IJ to 1^ times as long as 

 broad, with rounded, feebly projecting snout and nearly flat interorbital 

 region ; eye supero-lateral, in second half of head, its diameter 4| times 

 in length of head. 2^ times in interorbital width ; width of nioutli 

 J length of head; upper lip feebly developed, not fringed; lower lip 



Fig. 260. 



.^ 





Discoynath us johnstonii. 

 Type(F.N.). f 



embracing a mental disk, which is much broader thau long ; 2 minute 

 barbels on each side, not measuring J diameter of eye. Dorsal III 7, 

 equally distant from nostrils and from caudal ; longest ray f length of 

 head. Anal II 5. Pectoral | length of head, widely separated from 

 ventral, which is situated below posterior half of dorsal. Caudal deeply 

 emarginate. Caudal peduncle Ij times as long as deep. Scales 

 37-38 y, 4 between lateral line and root of ventral. IG rouiul caudal 



'8 



