196 



C1C1ILIDJE. 



33. TILAPIA BREVIMAKUS. 

 Bouleng. Ann. & Mag. N. H. (6) viii. 191], p. 57. 



Depth of body 2| to 2f 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 

 part 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. 12' 



•.>>■?'?: •■>e.- : ■■■■■ ■-■:■.■ 



Tilajjia brevimanus. 



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 § to f dia- 

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

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

 which measures about ■§ 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 j 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. 



