PAEATILAPIA. 



477 



o spines aiid 8 or 9 soft rays ; third spine stronger than the dorsals, one-third to two- 

 fifths the length of the head ; pectoral fin pointed, as long as the head or a little 

 shorter, extending to the origin of the anal, or not quite so far. Ventral fin reaching 

 the origin of the anal, or a little beyond. Caudal fin truncate. Caudal peduncle once 

 and one-third to once and two-thirds as long as deep. Scales feebly denticulate, 

 30-35 J2I13 5 lateral lines j^j. 



Pale olive-brown above, silvery white beneath ; chin and throat bright yellow ; a 

 blackish opercular spot ; a more or less distinct dark streak from the latter to the base 

 of the caudal fin ; sometimes a second dark streak higher up on the back ; dorsal and 

 caudal fins greyish, sometimes with small light spots between the rays ; anal fin 

 yellow, usually with one or two orange ocellar spots edged with red ; ventral fins 

 yellow, uniform or outer rays black or blackish. 



Lake Victoria. Described from six specimens from Bunjako (5-14.11.05), two from 

 Entebbe (29.5.05), and one from Buganga (15.11.05), collected by Mr. E. Degen. The 

 largest measures 145 millimetres. 



Measurements (in millimetres). 



Total length (without caudal) . . 



Greatest depth of body 



Length of head 



Width of head 



Length of snout 



Diameter of eye 



Interorbital width 



Length of last dorsal spine .... 

 „ longest soft dorsal ray 

 „ third anal spine .... 

 ,, longest soft anal ray 

 „ pectoral 



115 



102 



39 



37 



37 



33 



19 



19 



10 



9 



10 



9 



10 



9 



16 



15 



26 



25 



15 



15 



29 



24 



36 



33 



92 



74 



32 



25 



29 



25 



14 



12 



8 



7 



8 



7 



8 



7 



12 



11 



16 



14 



12 



11 



16 



13 



28 



23 



1-3. Bunjako. 4. Entebbe. 



Distinguished from the preceding by a broader snout and broader bands of teeth. 



