510 
ACCOUNT OF SOME FISHES 
* Core G ON US albus. White Fish. 
This fish has been long known to the fur-traders by the 
appellations of Poisson hlanc^ White Fish, or Tittymeg, 
the latter corrupted from the word AttiJihawmeg, the name 
given to it by the Cree Indians. The Chepewyans and 
Copper Indians term it Thlooah. It is noticed by Hearne 
under the name of Tickomeg; and Pennant, in Arctic 
Zoology, perhaps from the imperfection of his specimens, 
has confounded it with the Salmo lavaretus or Guiniad of 
British Zoology -j-. Very lately M. Le Sueur discovered 
it in the large lakes which bound the United States to the 
northward, and, adopting Artedi's genus of Coregonus, 
has described it correctly as a distinct species under the 
name of Coregonus albus l- This description, however, 
being merely intended for identification, is so brief, that I 
have been induced to record the following particulars, 
drawn up from the dissection and comparison of many in- 
dividuals. 
Shape.— The body is compressed, and, when viewed la- 
terally, nearly ovate, tapering to form the tail. The back 
is arched, and in a fat individual very gibbous before the 
dorsal fin. The depth of a full-grown fish may be stated 
at one- third of its length ; when fat it exceeds, and when 
lean falls short of, that proportion. 
The lateral line, running nearly midway between the 
back and the belly, is arched under the first dorsal, from 
whence it runs perfectly straight to the caudal fin. 
* Genus Salmo, Linn. ; Coregomts, Artedi.-— Subgenus Coregonus ; Les 
Omhres, Cuvier, ' Regne Animale,' vol. xi. p. 162. 
-|- ' Arctic Zoology,' Introd. p. ccxviii. and vol. xi. p. 393. 
$ Le Sueur, ' Journal of the Academy of Sciences, Philadelphia,' vol. i. 
p. 232, with a figure. 
