]9G 



CICIILID.E. 



3:5. TILAPIA BREVIMANUS. 

 Bouleng. Ann. & Mug. N. H. (S) viii. 1911, p. 57. 



De|)th of body 2 J to 2 J times in total length, length of head 3 times. 

 Head twice as long as broad, upper profile convex ; snout as long as 

 broad, or a little broader, as long as or slightly longer than postorbital 

 ])art of head ; eye 3 to 3-|- times in length of head, equal to interorbital 

 width, and slightly exceeding depth of prseorbital ; mouth extending to 

 between nostril and eye ; outer teeth moderately large, 50 to 60 in 

 upper jaw, followed after a rather wide interspace by 3 to 5 regular and 



Fig. 125. 



2'ilapia brevimaniis. 

 Type. 



well-separated series of smaller teeth ; 3 or 4 series of scales on the 

 cheek, the vertical diameter of the scaly part below the eye f to f dia- 

 meter of latter. Gill-rakcrs short, 13-15 on lower part of anterior arch. 

 Dorsal XVI (rarely XVIl) 12 ; spines increasing in length to the last, 

 which measures about f length of head ; soft portion pointed, produced 

 into a long filament in the male. Anal 111 8-9 ; third spine as long as 

 last dorsal. Pectoral f to f length of head, not reaching vertical of 

 origin of anal. Ventral produced into a long filament, reaching vent 

 or anal. Caudal truncate. Caudal peduncle nearly as long as deep. 



