Cichlid Genera Ciclilii, Cliiutobranchu-i, il;<\ t^l 



D.iisiil XXJ[ XXIV 10-l;{; luwor jiiw pro- 



jt'ftinjr; iMMO of the t«eth deprossible .... ."i. Kutravlio^m. 



Dorsal XVI-XXV 11 li>; lower j.iw projectiii-,'; 



iuuer teeth lieproisible 0. Crenlcichla. 



2. Praenpoiculum entire; no lobe ou tlie anterior branchial arch. 



a. Soft vertical liin scaleless or scaly at the ba-je onlv. Uor.f.il 



XIII XVI 7 12. Anal IIKj I'l. 

 a. Maxillary not exposed; pnciua.xillaries moderately pi.j- 

 tractile. 



Lpp>'r lateral line well separated from spinous 



dorsal lin 7. Acnra. 



Ui per lateral line, for most of its length, sepa- 

 rated by only -^ a aeries of scales from the 

 dorsal tin 8. Nannacttia. 



/3. Maxillary exposed ; pnemaxillaries very protractile. 



y. Avaropsis. 



b. Soft vertical fins covered with scales. DorsalXIl XIV lO-L'I. 



Anal in 15-lG 10. Axtronotus. 



3. Pneoperculum entire; a compressed lobe ou tlie upper part of 



the anterior branchial arch. 



a. Upper gill-rakers of the outer series of the first branchial 



arch running at the base of the lobe. 



11. Retroculus. 



b. Gill-rakers of the outer series of the first branchial anli, 



when developed, continued on to the free edge of the lobe. 



Dorsil XII-XIX 9-14 ; upper lateral line well 



separated from spinous dorsal fin \'2. Ge<q)ha(/us. 



Dorsal XV-XVI 5-7 ; upper lateral line, if com- 

 plete, separated from the dorsal fin, for most 

 of its length, bv only \ a series of scales. . . . l."J. Ilrteroijrainma. 



Dorsal \'II-VI1I 14-15 14. Bwtoecus. 



D. Anal fin with more than 3 spines. 



1. Dorsal XIII-XX 10-16. Anal IV-XII 7 ItJ. 



a. Teeth all conical or cylindrical, not compressed. 

 Prremaxillary processes shorter than the head . . 15. Ctchlosoma. 

 Proeraaxillary processes as long as the head .... 16. Pefenta. 



b. A band of small conical teeth, with an outer series of larger 



compressed teeth 17. Herichthya. 



c. Teeth all rather broad and strongly compressed ; scales 



large, those of the lateral line of the same size as the 



others. 



Teeth entire, with pointed or rounded apices . . l*^. PanDH'cfrop/u^. 



Teeth entire, with truncate apites l!>. Neetioi>lus. 



Median teeth of outer series entire, truncate; 



others tricuspid -0. Hoot Hap in. 



d. Teeth slend'T, compressed, pointed in the young, rounded in 



the adult; f-cales rather small, those of the lateral line 

 larger than the others '21. Uaru. 



2. Dorsal VIII-XIII 24-31. Anal V-IX 24-32. Teeth conical. 

 Teeth confined to the anterior part of each jaw. . 22. Si/mphi/sodon. 

 Teeth extending on to the tidei of the jaws .... 23. I'ffn>/,hi/'>,>,n. 



Ann. &>■ M'l;/. <V. Ifisf. S^'''"- 7. IV. xvii. 17 



