42G 



CICHLID^. 



14. PLATYTiENIODUS. 



Bouleng. Ann. & Mag. N. H. (7) xvii. 1906, p. 451, and Fisb. Nile, p. 493 

 (1907). 



Body moderately elongate ; scales ctenoid ; two incomplete lateral 

 lines. Jaws with very broad bands of small conical teeth, the alveolar 

 surface of the prsemaxillaries widening towards the pharynx, the band 

 of teeth in the upper jaw horseshoe-shaped, that in each ramus of the 

 lower jaw not much longer than broad. A very small part of the 

 maxillary exposed when the mouth is closed. Dorsal fin with 15 or 16 

 spines, anal with 3. 



Lake Victoria. 



Fig. 292 



Plaiytceniodus degeni. 

 Type (F. N.). 



1. PLATYT^NIODUS DEGENI. 

 Bouleng. 11. cc. pi. xci. fig. 1, and Ann. Mus. Geneva, (3) iv. 1909, p. 306. 



Depth of body 2f to 3 times in total length, length of head 3 times. 

 Head twice or not quite twice as long as broad ; snout with convex 

 upper profile, its length equal to interorbital width and 1^ times diameter 

 of eye, which is 4 times in length of head ; mouth not extending quite 



