1 899.] SYRIAN FISHES OP THE FAMILY CICHLID^. 99 



Synopsis of the Genera. 

 I. No sheath to the vertical fins. 



A. Anal spines V to X ; teeth conical, at 



least in the outer row. 



Jaws with a band of very small conical teeth, with 



moderately enlarged canines in front 1 . Lamprologus Schilth. 



Jaws with a band of very small conical teeth, with a 



few curved canines in front, the outer of which are 



very large and tusk-like 2. Julidochroviis Blgr. 



Jaws with a series of conical teeth followed by a broad 



band of minute tricuspid teeth 3. TelTmtochromis Blgr. 



B. Anal spines III ; teeth not notched, uni- 



cuspid, numerous. 



1. Teeth conical or fang-like ; alveolar 



surface of jaws narrow or moderately 

 broad. 



a. No pad-hke papillose prominence close 



to the upper part of the branchial 

 arches. 



Teeth in one or two series, with more or less en- 

 larged or canine-like ones at the symphysis 4. Hemichrmnis Ptrs. 



Teeth in two or more series, outer longest and more 

 or less curved inward ; anal with 6 to 12 soft 

 rays 5. Paratikqnct Blkv. 



Several rows of fang-like teeth ; scales small and ir- 

 regular ; anal with 16 soft rays 6. Bathyhcdes'Slgv. 



Teeth in two series ; outer mandibular teeth pointing 



outwards, perpendicular to the others 7. Ectodus Blgr. 



b. A pad-like prominence close to the 



upper part of the branchial arches. 



Teeth in two or more series, outer largest and more 



or less distinctly curved inward 8. Fehnatachromis Stdr, 



Teeth in one or two series, some of the larger ones 



with the crown bent at an angle to the shaft and 



directed forward or backward , 9. Chromidotilapia Blgr. 



2. Teeth not conical. 



Alveolar surface of jaws extremely broad, with in- 

 numerable minute teeth with compressed, oblique 

 crowns 10. Corematodus Blgv. 



Jaws with rather large spatulate teeth with truncated 

 crowns disposed in oblique transverse rows of two 

 or three 11. Eretmodus Blgr. 



0. Anal spines VI ; jaws with bands of 

 minute tricuspid teeth, an outer row of 

 bicuspid teeth, and enlarged conical teeth 

 at the sides of the prtemaxillary 12. Tropheus Blgr, 



D. Anal spines III or IV ; teeth all or part 



notched or hi- or tricuspid, in two or 



more rows. 



Jaws with broad bands of minute bicuspid teeth, with 



an outer series of larger bicuspid teeth, and a 



single series of sharply differentiated conical teeth 



at the sides of the pr£emaxillary 13. Simochromis Blgr. 



Alveolar surface of jaws narrow or moderately broad, 



all or most of the outer teeth bi- or tricuspid 14. Tilapia Smith. 



7* 



