140 CICHLIDJl. 



** Caudal peduncle as long as deep, rarely a little deeper than 

 long ; 2 or 3 series of scales on the cheek ; 15-23 gill-rakers ; 

 pectoral usually not much longor than head. 

 D. XV-XVI 10-11 ; A. Ill (IV) 9-10 ; Sc. 30- 



Ql Al 



33 1 |_ 1 g ; inouth large, at least f width o£ 

 head, extending to below eye, or not quite 



so far ; caudal rounded in the adult . . 5. T. mossamhica, Peters, p. 151. 

 D. XV-XVI 12-13 ; A. Ill 10 ; Sc. 28- 



3~ 



31 =J ; mouth large, extending to below 

 anterior border of eye, or a little beyond ; 



caudal truncate 6. T. vorax, Pfeff., p. 15G. 



D. XV-XVIII 10-12 ; A. Ill 9-11 ; Sc. 30- 



34 d&| ; mouth f to | width of head, 

 extending to between nostril and eye ; 

 caudal truncate or slightly emarginate 



(angles sometimes rounded) 7. T. natalensis, M. Web., p. 157. 



D. XV 12-13 ; A. Ill 9-10 ; Sc. 27-30 #^ ; 

 mouth | width of head, extending 

 to between nostril and eye ; caudal 

 truncate 8. T. linnelli, Louub., p. 159. 



*** Caudal peduncle deeper than long ; 2 or 3 series of scales on 



the cheek ; 15-25 gill-rakers ; pectoral often much longer 



than head in adult. 



D. XV-XVI 12-13; A. Ill 9-10; Sc. 29- 

 3-3- 



31 YS^u, > caU( ^ a l truncate or slightly 



emarginate 9. T. macrochir, Elgr., p. 1C0. 



D. XV-XVIII 11-15 ; A. Ill 8-11; Sc. 31- 



3-— 5 



35 joTjg; caudal rounded in the adult . . 10. T. nilotica, L., p. 162. 



/?. Outer teeth with extremely slender shafts, sometimes almost sett- 

 form ; 2 or 3 series of scales on the cheek ; caudal truncate or 

 slightly emarginate. 

 * Caudal peduncle not deeper than long. 

 D. XVI-XV1I 10-13 ; A. Ill 9-10; Sc. 31- 



32 jrrTr, > third anal spine longer than 



longest dorsal ; 20-30 gill-rakers . . .11. T. eduardiana, Blgr., p. 1C6. 

 D. XVI-XVIII 10-13 ; A. Ill (IV) 10-11 ; 

 Sc. 31-35 Yi^ie ' ^ uu 'd ana l spine not 

 longer than longest dorsal ; 17-19 gill- 

 rakers 12. T. variabilis, Blgr., p. 1G7. 



