ooU 



CYPIilNID.I, 



little more tlian half, lengtli of head ; eye small, supero-lateral, oh to 8 

 times in length of head (4 or o times in very young) ; interorbital width 

 I to J length of head ; width of mouth | to f length of head ; lips 

 strongly developed, upper straight-edged, lower more or less expauded 

 and bordered in front by a fringe of papilUr, the posterior border being 

 more or less distinctly festooned ; inner surfiice of lips with smnll papilhe 

 forming numerous transverse plicue ; rostral flap huLce, completely 



Fig. 248. 



/< 



^> 



Tjoheo fontkalii. 

 Upper Nile (F. N.). i. 



detached at the sides, its edge entire or more or le>s distiucth festooned; 

 a minute barbel, concealed under folds of skin ; horny tubercles on the 

 snout, or their crater-liki> scars, much devclojx'd in adult, more so in 

 males than in females. Dorsal HI Id (rarely '.» or 11) rays, equally 

 distant from end of snout or nostrils and from caudal, ujiper edge concave, 

 last simple ray and first branched ray more or less produced in males ; 

 except in very young and certain female specimens, longest ra\s more or 

 less considerably exceeding length of head. Anal III o, shorter than 

 head, often reaching root of caudal. Pectoral nearly as long as 

 head, not reaching ventral, the first ray of which falls below 4th or otli 

 branched ray of dorsal. Caudal (icei>Iy emarginate, crescentic when 

 fully spread out. Caudal peduncle l\ to IJ times as long as deep. 

 Scales o8-42 'A '', 4-5 between lateral line and root of ventral, 16 

 (rarely 18) round caudal peduncle. Dark oliv(^ above and on the sides, 

 white beneath ; scales on the sides often pink in the centre; fins dark 

 grey, first ray of pectoral, Neutral, and anal often yellowish. 



Total length 300 millim. 



T.ower Nile to upj>er tributaries of \\\nv Nile. 



