404 FISHES. ABDOMINALES. 



face hollowed ; mouth small, with two rows of teeth in the 

 intermaxillaries, one row in the lower jaw, and two isolated 

 teeth behind ; tongue and palate smooth. 



M. dentex, Cuv. (Cyprinus dentex, Lin S. Niloticus, Forsk.) 

 Body elongated, silvery, lineated above with brown and whitish ; 

 fins white, and lower half of the tail red ; first dorsal fin above the 



interval between the ventral and anal fins. Inhabits the Nile 



Shaw, v. 71. 



Gen. 11. HYDROCYNUS, Cuv. Salmo, Lin. 

 Body compressed ; point of the snout formed by the intermax- 

 illary bones ; maxillaries commencing near or before the eyes ; 

 tongue and vomer smooth ; teeth conical in both jaws. 



* With one row of small teeth in the jaws and palate. 

 H.falcatus, Cuv. Body silvery, with a bluish tinge on the sides, 

 brownish on the back ; scales thin and easily detached ; two 

 black spots, one near the head, the other near the base of the 

 tail, on both sides ; anal fin falcated, the first dorsal fin over the 

 space between the anal and ventral ones ; tail forked. 12 or 14 

 inches long. Inhabits Surinam. Block, pi. 385. 



H. odoe, Cuv. Head compressed, broad above, narrow and without 

 scales before ; back and fins blackish-brown ; tail forked ; the 

 first dorsal fin opposite the space between the anal and ventral 

 ones. 2 to 3 feet long. Inhabits African Seas. Block, pi. 386. 



** With a double row of teeth on the intermaxillary bones. 



H. Braziliensis, Cuv. Body striped longitudinally with blackish ; 



a double row of teeth on the intermaxillaries and under jaw, a 



single row on the maxillary bones, and the palate smooth ; first 



dorsal fin above the ventral fins. Cuv. Reg. An. pi. 10. 



Cuvier further divides this genus into, 1. those which have a single row of teeth 



on the maxillaries and lower jaw, the teeth alternately very short and long, as the 



H. scomberoides. 2. Those which have the snout projecting, the maxillaries short, 



and furnished, as well as the lower jaw, with a single row of crowded teeth, and the 



body covered with strong scales ; H. lucius, Cuv. 3. Those with teeth only in the 



intermaxillaries and lower jaw ; the Roschal of Forskal. 



Gen. 12. CITHARINUS, Cuv. 



Mouth depressed, cleft across the point of the snout ; upper 

 margin formed by the intermaxillary bones ; maxillaries small 

 and without teeth ; tongue and palate smooth ; adipose fin 

 covered with scales, as well as the greater portion of the cau- 

 dal fin. 



C. Niloticus. Body compressed, high vertically ; teeth in the up- 

 per jaw only ; belly smooth, not carinated. Inhabits the Nile. 

 Geoff. Poiss. d'Eg. pi. 5, fig. 2, 3. 



C. JEgyptius. (S. JEgyptius, Gmel. S. Niloticus, Hasselq.) The 

 Nefasch of the Egyptians. Body elongated, greenish on the 



