480 On new Fishes from Lake Tanganyika. 



Barilius Moorii. 

 D. 12. A. 16-17. L. lat. 56-60. L. tr. 1± = L *. 



Depth of body equal to length of head, 4 times in total 

 length. Mouth extending to below anterior third or centre of 

 eye. Anal originating below middle of dorsal. 3 scales 

 between lateral line and root of ventral. Silvery, brownish 

 on the back ; about 10 dark vertical bars on the body ; dorsal 

 blackish at the end. 



Total length 115 millim. 



North end of Lake Tanganyika. 



Barilius tanganicm. 

 D. 13. A. 20. L. lat. 82. L. tr. f . 



Depth of body equal to length of head, 4£ times in total 

 length. Mouth extending to below posterior border of eye. 

 Anal originating below posterior third of dorsal. 4 scales 

 between lateral line and root of ventral. Silvery, olive on 

 the back ; 16 or 17 dark vertical bars on the body. 



Total length 260 millim. 



North end of Lake Tanganyika. 



Chrysichthys hrachynema. 

 D. I 6. A. 12-13. 



Head little longer than broad, smooth above ; snout twice 

 as broad as long ; diameter of eye 5 to 6 times in length of 

 head ; maxillary barbel ^ or § length of head, outer man- 

 dibular \ or \ ; nasal barbel not or but scarcely longer than 

 diameter of eye ; teeth on the palate forming a broad crescentic 

 or horseshoe-shaped band on the vomer and pterygoids. 

 Dorsal spine ^ or § length of head. Adipose fin measuring ^ 

 or \ its distance from the rayed dorsal. Pectoral spine very 

 strongly serrated. Caudal deeply notched, with obtusely 

 pointed lobes. Olive above, white beneath. 



Total length 400 millim. 



Several specimens from Kalambo and Usambura. 



Synodontis granulosus. 



D. I 7. A. 11. 



Head granular above ; eyes supero-lateral ; maxillary 

 barbel simple, as long as or a little longer than the head ; 



