136 CICHL1D2E. 



Teeth of outer series very large and widely 



spaced ; prremaxillaries expanded at the 



symphysis, beak-like ; dorsal with 1G-20 



spines, anal with 9-11 soft rays . . . . 16. Champsochromis, Blgr., p. 433. 

 Teeth fang-like, in 2 to 4 series, the inner 



depressible, hinged at the base ; scales 



very small and irregular ; dorsal with 



13-17 spines, anal with 14-18 soft rays . 17. Batlnjlates, Blgr., p. 43G. 

 Mouth nearly vertical, directed upwards, with 



a single series of small teeth ; dorsal with 



17-18 spines 18. Haplotaxodon, Blgr., p. 443. 



** Outer mandibular teeth pointing outwards, perpendicular to the 

 inner ; dorsal with 13-16 spines. 

 Membrane between dorsal and anal spines with 



rectilinear edge, not forming lappets . . 19. Cyrtocara, Blgr., p. 445. 

 Dorsal and anal with lappets 20. Ectodus, Blgr., p. 446. 



/3. Two lateral lines ; ventrals with the inner rays longest ; dorsal with 

 13-15 spines. 

 Teeth in 2 series, outer mandibular pointing 



outwards 21. Enantiopus, Blgr., p. 447. 



Teeth in 4 or 5 series, outer mandibular not 



pointing outwards 22. Stappersia, Blgr., p. 450. 



7. Three lateral lines ; dorsal with 13-15 spines. 

 Ventrals with the inner rays longest ; outer 



mandibular teeth pointing outwards . . 23. Xenotilapia, Blgr., p. 451. 

 Ventrals with the outer ia.ys longest ; outer 



mandibular teeth not pointing outwards . 24. Grammatotria, Blgr., p. 453. 



8. A single, very short lateral line (the upper); dorsal with 9-12 spines. 

 Teeth very minute ; head with large and deep 



cavities 25. Trematocara, Blgr., p. 455. 



b. Outer teeth closely set and strongly 

 incurved, followed by a baud of 

 very small tricuspid teeth ; dorsal 

 with 17 spines 26. Gephi/rochromis, Blgr., p. 458. 



2. Anal with 4-10 spiues. 



Teeth conical, forming a villiform band with 

 more or loss strongly enlarged canines in 

 front; dorsal with 16-21 spines. . . . 27. Lamprologus, Schilth., p. 459. 



Teeth conical, forming a villiform band with a 

 few strongly curved canines in front, the 

 outer of which are very large and tusk- 

 like ; dorsal with 22-24 spines .... 28. Julidochromis, Blgr., p. 484. 



