430 ORDER MALACOPTERYGII ABDOMINALES. 



ClTHARINUS, CUV., 



Are recognised by their depressed mouth, cleft cross- 

 wise at the end of the muzzle, the upper edge of which 

 is entirely formed by the intermaxillaries, while the 

 maxillaries, small and without teeth, only occupy the 

 commissure ; the tongue and palate are smooth, and 

 the adipose fin is covered with scales, as well as the 

 greatest portion of the caudal. They are found in 

 the Nile. 



Some have very small teeth in the upper jaw only, 

 the body elevated like the serra-salmones, but the 

 belly neither trenchant nor dentated \ 



Others have, at both jaws, a great number of teeth, 

 crowded in several ranks, slender, and forked at the 

 end ; their form is more elongated 2 . 



Saurus, Cuv., 



Have the muzzle short; the mouth cleft as far as 

 behind the eyes ; the edge of the upper jaw formed 

 almost entirely by the intermaxillaries ; several very 

 pointed teeth along both jaws, the palatines, the 

 tongue, and the pharyngeals, but none on the vomer ; 

 eight or nine, and frequently ten or fifteen rays to 



1 The Serra-salme citharine, or Star of the night, of the Arabs, 

 Geoff. Poiss. d'Eg. pi. v. f. 2 and 3. (Citharinus Geqffrcei, C. Salmo 

 cyjyrino'ides, Gronov., Mus. p. 378.) 



The Characin nefasch, Geoff, ib. fig. 1 ; or Salmo /Egyptius, 

 Gm. ; it is the Salmo niloticus of Hasselquist, very different from 

 that of Forskal, which is the Rati. 





