350 



Annals of the South African Museum. 



One specimen, 185 mm. in length, from Victoria Falls, Zambezi 

 River (F. W. Sykes). 



It is also reported from the Lower Nile to the upper tributaries of 

 the Blue Nile. 



3. LABEO CYLINDRICUS, Peters. 



Labeo cylindricus, Peters, Mon. Berl. Ac., 1852, p. 684, and Reise 

 Mossamb., iv., p. 47, pi. x.,fig. 1 (1868); Bouleng., Cat. Fresh. Fish. 

 Africa, i., p. 331 (1909). 



Tijlognathus cantini, Sauv., Bull. Soc. Philom. (7), vi., 1882 

 p. 175. 



Body slightly compressed ; its depth 3| to 3f times in total length 

 excluding caudal, length of head 4 to 5 times ; width of head to 



FIG. 20. Labeo cylindricus. 



f its length ; snout about ^ length of head, strongly projecting 

 beyond mouth, more or less swollen and pointed at extremity, 

 ending in some specimens with a more or less turned-up appendage 

 with a transverse groove behind it ; eye supero-lateral, 5|- to 7 times 

 in length of head, situated nearer to gill-opening than to point of 

 snout ; interorbital width f to ^ length of head ; lips well developed, 

 the upper lip straight edged the lower with a fringe of papillae and 

 the border more or less festooned, inner surface of lips with trans- 

 verse plicae ; rostral flap large, completely detached at sides, its edge 



