vomer furnished with tee ill, from tlie second also by 

 the teeth, and from the third by the pectorals, the dor- 

 gal, (he teeth, the gill-covers, ^c. The characters o^ 

 i]i& above named genera not conforming to those of our 

 species, I have thought myself under the necessity o* 

 crccthig a new genus, which I respectfully submit, un- 

 der tjic name of Hiodon, which may be placed among 

 ihi!> foregoing, or between the genera Salmo and Chi- 

 pea. Of this new genus I have observed two spe- 

 cies* 



aenits HIODON. 

 Characters. 



^Bodjf as in the genus Clupea, but without carlnated aV^ 

 domeu. 



Tongue supplied by the os Jiyoides, which is furnish- 

 ed with strong teeth. 



Dorsal fm one. 



Eyes very large. 



Jiodif compressed,- as in the Herrings, but without abr 

 dominal serratiires. 



flead narrow; snout very shoii;, obtuse, witjiout scales; 

 aape covered on each side with large triangular 

 scales ; posterior suborbits covering the cheeks, 

 an erior ones concoalhig the maxiliaries ; praio- 

 perculum large, triangular, curving under the 

 ihroat, its posterior angle rounded, coyering al^ 

 niost- the wiioie of the subopcrculum 5 the iuterte?- 



