8 GOBllUJ-:. 



simple and C to 12 branchcJ rays. Aual similar to second dorsal. 

 Ventral fins distinct. Scales large or small, cycloid or more or less 

 strongly ciliated. 



Coasts and rivers between the tropics ; most of the species confined to 

 fresh waters. 14 species are known from fresh water in Africa, 



Si/nojisis of the Species. 



]. \o ]ir;ro])orcni!ar spine. 



A. I'oily strongly compressed ; lieiid sc;ily. 



1. Dorsals VII-VIII, I 8-11, luirrowly separated from oaeli otlier ; 



anal I ri-ll1; scales ciliated, '28-02 in loiieitudinal series. 

 Head much deeper tiiaii Ijroad ; camlal peduncle 



1§ to '1 times as long as deep 1.7:.". lehretoni, Stdr., p. '.>. 



Head as hroad as dee|) ; caudal |ieduucle \^ 



times as long as deep 2. A', jilcurops, I'lgr.. p. 10. 



2. Dorsals YI, I 8, rather widely separateil from each otlier. 



Head broader than dee]) ; A. I 8 ; 8c. 20-32 . 11. K. hutls. Ham. Buch., p. 10. 

 Head deeper than hroad; A. I 10; Sc. 25-27. 4. E. tohlzome, Stdr., p. 12. 



B. Body not or hut feehly compressed. 



1. Scales ciliated, less than .")0 in longitudinal series. 0-11 hetweeii dorsal 

 and anal. 

 a. Head nakeil ; 29-.39 scales in longitudinal series. 

 D. V. HI; A. I 7 ; Sc. 29-30 ; caudal peduncle 



twice as long as deep b. K. nana. Blgr., |i. 12. 



D. VI, I 8 ; A. I 5 ; Sc. 30-32 ; caudal jieduncle 



twice as long as deep (J. E. iiellensif, Blgr., p. 13. 



D. VI, I 8-9; A. I 7; Sc. 32-35; caudal 



peduncle 1^ to 1§ times as long as deep . 7. E.kribeiisis, Blgr., p. 14. 

 D. VM 8; A. I 7 ; Sc. 38-39 ; caudal peduncle 



Ig times as long as deep 8. E. leoiiensis. W'^r., \\ I'l. 



li. Head scaly : 35-42 scales in longituiliiial series, 12-11 hetween dor.«al 

 and nnal. 

 D. VI. I 8; A. 17; depth of hody 4-5 times 



in total length ; caudal peduncle ] J- or li [p- l-'. 



times as long as dc^ep 9. E. ujjliioce/ilutlnf. ( '. i^ V., 



D. VI, I 9 : A. I 7 : depth of hody 5 to 5i 



times in total length : caudal peduncle [p- !''• 



nearly twice as long as deep 10. /-,'. madaffascariensi.i, C k ^ ., 



2. Scales cycloid, 90-95 in longitudinal scries, 32-35 between dorsal ami 

 anal. 

 D. VI. 1 '.': .V. I .s 11. E. ii/ricann. Su\v., ]<. l"!. 



