230 



NEW YORK STATE MUSEIUM 



MEASUREMENTS 



Length of last dorsal ray 



Distance from snout to ventral origin. . 



Length of ventral 



Length of ventral appendage 



Distance from, snout to anal origin 



Length of anal base 



Length of longest anal ray 



Length of last anal ray 



'Length of pectoral '. 



Distance from snout to adipose fin 



Length of base of adipose fin 



Length of adipose fin 



Width of base of adipose fin 



Length of longest gill raker 



Canandai- Upper 

 gua lake, Saranac, 

 June 17, Nov. IG, 



1896 

 ? 

 % 



9 



2% 

 Vs 

 13 

 2 



1% 

 % 

 3 

 14 

 1 

 % 



1/2 

 % 



1895 



Chazy 



lake, 



Nov. 2;?^ 



1895 



% 



Taking the fish in the order above given, the gill rakers are: 

 9 + 17, 10 + 16, and 9 + 17. The scales are: 10-76-8, 10-87-9, and 

 11-81-10. The branchiostegals in various specimens examined 

 are 9 to 10; divided dorsal rays, 10 to 11; anal rays, 10 to 11. 



Genus argyrosomus Agassiz 



This genus is very close to Coregonus, from which it 

 differs in the larger mouth and more produced jaws, the pre- 

 maxillaries being placed nearly horizontally, and the lower jaw 

 decidedly projecting beyond them. Gill rakers very long and 

 slender, about 30 on lower limb; vertebrae 55. These characters^ 

 are associated with the greater voracity and, in general, greater 

 activity of the species of A r g y r o s o m u s , The species are 

 numerous in the northern parts of Europe, Asisi and North 

 America, and all are valued as food. 



125 Argyrosomus osmeriformis (H. M. Smith) 



Smelt of New York lakes 



Coregonus lioyi Bean, Proc. U. S. Nat. Mus. V, 658, 1883; Goode, Fish «& 

 Fish. Ind. U. S. pi. 197 B, 1884; not Coregonus hoyi Gill. 



Coregonus osmeriformis Smith, Bull. U. S. F. C. XIV, 2, pi. 1, fig. 2, 1895. 

 Lakes Seneca and Skaneateles, New York. 



Argyrosomus osmeriformis Joedan & Eveemann, Bull. 47, U. S., Nat. Mus. 

 468, 1896. 



