LABEO. 303 



D. Ill 10 ; Sc. 39 % 4, 22 ; caudal peduncle 



longer than deep 23. L. Urkii, Blgr., p. 328. 



/3. 16-18 scales round caudal peduncle. 



* Caudal peduncle longer than deep'. 

 D. Ill 9-11 ; diameter of eye 5|-8 times 



in length of head ; Sc. 38-42 S£gjj 4 ~ 5 > 



16-18 ? ! . . 24. L.forsMil, Riipp., p. 329. 



D. Ill 8-10 ; diameter of eye 4-7 times in 

 length of head ; Sc. 35-39 |pg, 3-4, 



16-18 25. X. cylindricus, Peters, p. 331. 



** Caudal peduncle as long as deep or little deeper than long ; 

 D. Ill 10 ; Sc. 37-39 |j, 4, 16. 



Diameter of eye 7 times in length of head in 



adult ; snout pointed, ending in a turned- 



up appendage 25. L. nasus, Blgr., p. 333. 



Diameter of eye 4-5i times in length of head ; 



snout obtusely pointed 27. L. greenii, Blgr., p. 334. 



7. 12 scales round caudal peduncle ; D. Ill 10 (rarely 9 or 11). 



41—51 



* Caudal peduncle 1A— 1§ times as long as deep ; Sc. 34-39 g£=f- 



Head H times as long as broad ; 4 series of 



scales between lateral line and ventral . . 28. L. lukulce, Blgr., p. 335. 

 Head 1|-1^ times as long as broad ; 3 series of 



scales between lateral line and ventral . . 29. L. annectens, Blgr., p. 336. 



** Caudal peduncle not or but slightly longer than deep ; Sc. 33- 



Longest ray of dorsal 1§-1| times as long as 

 head ; diameter of eye 2|-3 times in inter- 

 orbital width 30. L. chariensis, Pellegr., p. 337. 



Longest ray of dorsal as long as or a Utile 

 shorter than head ; diameter of eye l§-2 

 times in interorbital width 31. L. parvus, Blgr., p. 337. 



Longest ray of dorsal as long as or a little 

 longer than head ; diameter of eye 1^-1^ 



times in interorbital width 32. L. olscurus, Pellegr., p. 338. 



II. Two barbels on each side ; dorsal with concave upper edge. 



A. Eyes perfectly lateral, or nearly perfectly lateral ; barbels not longer 



than eye. 

 D. Ill 8-10 ; Sc. 58-65 ||FJ||, 9-10, 30-34 . 33. L. umbratus, A. Smith, p. 339. 



CI 01 



D. IV 10-11 ; Sc. 44-50 ro ^j, 6-7, 20-24 . 34. L. capensis, A. Smith, p. 340. 

 D. IV 10 ; Sc. 36 f|, 4, 16 35. L. ansorgii, Blgr., p. 341. 



B. Eyes supero-luteral ; barbels longer than eye in the adult. 



D. Ill 10-11 ; Sc. 40-41 J^, 6, 20-22 . . 36. L. barbatus, Blgr., p. 342. 



