SALMONIDJB. 69 



Genus: Argyrosomus. 

 Key to Species. 



A. Lower jaw projecting; depth in length 4%. — artedi. 



AA. Jaws about equal; depth in length 3 to 3^. — iullibee. 



Argyrosomus artedi (Le Sueur). Cisco ; Lake Herring. 



Head 4%; depth 4%; eye 4 to 4^. D. 10; A. 12; scales 8-75 to 90-7. 

 Body elongate, compressed, not elevated. Head compressed, rather long; 

 distance from occiput to snout usually a little less than half the distance 

 from occiput to insertion of dorsal fin. Dorsal fin high, its rays rapidly 

 shortened. Bluish black or greenish above; sides silvery, with dark specks; 

 fins mostly pale, the lower dusky-tinged. Length 1 foot. 



In Ohio taken only in Lake Erie, where it is very abundant. 

 Recorded by Kirtland, Jordan and Henshall. Lorain Co., " very 

 abundant, sometimes filling the pound nets almost solid with 

 fish," McCormick, 1892; "west end of Lake Erie," Kirsch, 1893. 

 Brought into Sandusky fish houses in enormous numbers. 



Argyrosomus tullibee (Richardson). Tulubee ; Mongrel 

 Whitefish. 

 Head 4 to 4^; depth 3 to 3A; eye 4^2, as long as snout. D. 11 or 12; 

 A. 11; scales 8 or 9-67 to 74-S. Body short, deep, compressed, shad-like, 

 dorsal and ventral curves similar. Head conic, compressed; distance from 

 occiput to tip of snout half the distance from occiput to insertion of D. 

 Color bluish above; sides white, punctate with fine dots; each scale with a 

 silvery area, these forming a series of distinct longitudinal stripes. Length 

 18 inches. 



I have seen but one record of this species in Ohio, as follows: 

 ' ' I once received a photograph of a Tullibee from Dr. E. Ster- 

 ling, of Cleveland. The specimen had been taken in Lake Erie,'* 

 Jordan's Report. 



Genus: CrisTivomer. 



Cristivomer namaycush (Walbaum). Mackinaw Trout; 

 Great Lake Trout ; Namaycush. 

 Head4X; depth 4; eye large, 4;^. D. 11; A. 11; lateral line 185^205. 

 Body elongate. Head very long and pointed, its upper surface flattened. 

 Mouth very large, the maxillary extending much beyond eye; teeth strong. 

 Caudal fin -well forked; adipose fin small. General color dark gray, varying 

 from pale to nearly black; everywhere with rounded, paler spots, which are 

 often reddish tinged; dorsal and caudal reticulate with darker. Length 3 

 feet. 



