CICHLID.E. 137 



An outer scries of large conical teeth and a 

 broad band of small tricuspid teeth ; 

 dorsal with 18-22 spines 29. Telmatochromis, Blgr., p. -185. 



E. Dentition not falling under any of the above definitions. 

 1. Teeth not strongly curved, with compressed crowns. 



a. Dorsal with 15-17 spines. 



Outer teeth large and few (24 in upper jaw) 



with long inner cusp directed inwards 



and very short or indistinct outer cusp . 30. Bayonia, Blgr., p. -188. 

 Jaws with moderately broad bands of slender, 



club-shaped teeth, the outer with the 



crown obliquely truncate and pointing 



towards the symphysis 31. Hemitilapia, Blgr., p. 4.89. 



Jaws with very broad bands of bristle-like 



movable teeth with club-shaped crowns ; 



rami of lower jaw approximated, spatulate 



in front, connected with the upper jaw by 



a broad thin lip 32. Chilochromis, Blgr., p. 492. 



Jaws very massive, with extremely broad bands 



of nnumerablc minute teeth 33. Corematodus, Blgr., p. 494. 



b. Dorsal with 18-25 spines. 



Large spatulate teeth with truncate crowns 



disposed in oblique transverse rows of 



two or three ; dorsal with 23-25 spines . 34. Eretmodus, Blgr., p. 495. 

 A single series of large teeth with elongate 



cylindrical shafts and expanded rounded- 



subtruncate crowns ; dorsal with 23 



spines 35. SpaUwJns, Blgr., p. 496. 



Teeth in a single scries, rather large, unequal in 



size, few (20 in upper jaw), with swollen 



bases and short slightly notched crowns ; 



dorsal with 18 spines 36. Pcrissndus, Blgr., p. 497. 



2. Teeth neither curved nor compressed. 

 Teeth in several series, with obtuse or rounded 



crowns ; dorsal with 15 spines . . . .37. Chilolilajna, Blgr., p. 498. 



3. Teeth with strongly curved, compressed crowns. 

 Teeth in two series, 50-54 in outer series of 



upper jaw ; dorsal with 15-16 spines . . 38. Schubotzia, Blgr., p. 500. 

 Teeth in a single series, 34-46 in upper jaw, 

 feebly grooved in front; dorsal with 16- 

 17 spines 39. XeaocJiromis, Blgr., p. 501. 



