224 



CICHLlD/l-:. 



19-27. Hgr. 



& yg- 



28-29. Yg. 

 30. Hgr. 



Z. 



Fort Johnston. 



Umsitu R., Broken Hill, N.W 

 Rhodesia. 



Sir H. H. Johnston (P.). 



Rev. F. A. Rogers and 

 E. C. Chuhb, Esq. (P.). 



58. TILAPIA LUCULL^J. 

 Bouleng. Ann. & Mag. N. H. (8) xii. 1913, p. 483. 



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

 a little more than twice as long as broad ; snout with straight upper 

 profile, as long as broad, as long as postocular part of head, longer than 

 eye, which is 4 times in length of head, equals interorbital width, and 

 a little exceeds least depth of praorbital ; mouth rather large, f width 

 of head, extending nearly to below anterior border of eye ; end of 



Tilapia lucullcs. 

 Type. 



maxillary exposed ; teeth in 3 series, outer moderately large, 46 in 

 outer row of upper jaw ; 3 or 4 series of scales on the cheek, width of 

 scaly part a little less than diameter of eye. Gill-rakers short, 9 on 

 lower part of anterior arch. Dorsal XVI 9-10 ; last spine longest, not 

 quite jj length of head, longest soft rays ^ to f. Anal HI 8-9; third 

 spine nearly as long as last dorsal. Pectoral f length of head, not 

 extending to vertical of origin of anal. Ventral reaching vent or origin 

 of anal. Caudal rounded. Caudal peduncle 1^ times as long as deep. 



3- '^0— " >? 



Scales finely denticulate, 32-33 jy; lateral lines y^ry^. Brownish; 

 dorsal and caudal with round blackish spots, the former with a dark 



