TIL API A. 



221 



feebly denticulate, 31 ff ; lateral lines ~. Pale brown above, silvery 

 white below ; dark brown blotches confluent into very irregular cross- 

 bands on the body ; a dark bar below the eye ; a blackish blotch on 



Pig. 143, 





Tilapia adolphi-frederici. 

 Type (Deutsch. Z.-Afr. Exped.). 



the end of the snout and chin ; a dark brown opercular spot ; fins 

 yellowish, the bars of the body extending on the dorsal and anal ; upper 

 third of caudal blackish. 



Total length 93 millim. 



Lake Ivivu. — Type in Berlin Museum. 



55. TILAPIA GIARDI. 

 Pellegr. Mhn. Soc. Zool. France, xvi. 1904, p. 3tl, pi. v. fig. 2. 



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

 Upper profile of head curved ; snout shorter than postocular part of 



Tig. 144. 



2'ilapla giardi. 

 Type, after Pellegrin {I, c). 



head ; eye 3| times in length of head ; mouth | width of head, extending 

 nearly to below anterior border of eye ; teeth in 3 series ; G series of 



