240 



CICHLID.E. 



latter sometimes with one or two orange ocellar spots in the posterior 

 part ; ventral fins yellow in the females, black in the males. 



Total length 110 millim. 



Lakes Victoria and Albert Edward. 



1-7. Types. Bunjako. 



8. Yg. Kisumu Bay, KavironJo. 



<J-12. Ad. L. Albert Edward. 



Mr. E. Degen (C). 

 A. Blayney Percival, Esq. (P.). 

 Dr. H. Schubotz (C.) ; 

 German C. African Expedition. 



72. TILAPIA BAYONI. 

 Bouleng. Ann. Mus. Geneva, (3) v. 1911, p. 72, pi. iii. fig. 2. 



Depth of body equal to length of head, 3 times in total length. Head 

 twice, or a little over twice, as long as broad ; snout rounded, as long 

 as broad, with convex upper profile, a little shorter than eye, which is 



Fig. 159. 



Tilapia hayoni. 

 Type (Ann. Mus. Genova, 1911). 



3 times in length of head, and exceeds interorbital width and least depth 

 of prteorbital ; jaws equal in front ; maxillary extending a little beyond 

 vertical of anterior border of eye ; teeth small, in 5 or 6 rows, outer 

 laigest and bicuspid, others tricuspid ; GO to 70 teeth in outer row of 



