186 



CICHLID.^. 



G-14. Ad., b<rr._, Cliiloango, Portug. Congo. Dr. W. J. Ansorge (C). 



15. Skel. ., ,, „ 



lG-17. Two of the L. Obeke, Upper Congo. M. P. Dcll.ez (C). 



types. 



25. TILAPIA MART^. 



Boulcng. Proc. Zool. Soc. 1899, p. 122, pi. xi. fig. 1 ; Pell.'gr. Mem. Soc. Zool. 

 France, xvi. 1901, p. 323. 



Depth of body If to 'if times in total length, length of head 2f to 3 

 times. Head If to 2 times as long as broad, witb convex upper 

 profile; snout rounded, about 1^ times as long as broad, as long as 

 or a little shorter than postocular part of head ; eye 2f (young) to 

 3| times in length of head, 1 to 1^ times in interorbital width, 



Y\cr. 120 



I'ilapia marke. 

 Oguta. 



exceeding proeorbital depth ; mouth rather small, | to | width of 

 head, extending to between nostril and eye ; teetli in 3 to 5 series, 

 outer very small, with very slender shafts, movable, 50 to Ol in upper 

 jaw ; 3 or 4 series of scales on the cheek, width of scaly part less than 

 diameter of eye. Gill-rakers sliort, 13 to 15 on lower part of anterior 

 arch. Dorsal XVI (rarely XV) 12-13; spines subequal from the fifth, 

 or last longest, \ to % length of head ; longest soft ray l to once l(M)gth 

 of head. Anal 11110-11; third ^pine us long as or shorter than last 



