The Utah Lake Chub 



90 in the lateral line. There are no other important differences. 



Colorado basin; very abundant in the river channels as far 

 up as the mountains of Colorado. 



This is the largest of the American Cyprinidce. It reaches a 

 length of 5 feet or more, and a weight of 80 pounds, though 

 examples of this extreme size are infrequent. At Green River, 

 Wyoming, individuals of 8 and 10 pounds are not at all rare. 

 It is known variously as the whitefish, white salmon, or salmon, 

 and in the Colorado basin, where species of food-fishes are not 

 numerous, it is a fish of considerable importance. 



Nothing distinctive is known of its habits or methods of 

 capture. 



Utah Lake Chub 



Leuciscus lineatus (Girard) 



Head 3^-5 depth j?; eye 7; D. 9; A. 8; scales 10-55 to 

 65-5; teeth 2, 5-4, 2, short and stout, one of them with grind- 

 ing surface. Body robust, elevated anteriorly, the sides com- 

 pressed, although the back is very broad; head broad, the 

 interorbital space flattish; adult with the profile concave, straight 

 or convex in the young; snout broad, elevated at the tip; 

 premaxillary on level of pupil; mouth very oblique, the mandible 

 projecting; maxillary reaching front of eye; scales large, sub- 

 equal, broadly exposed, firm; lateral line decurved; dorsal nearly 

 median, inserted directly over ventrals; caudal evenly forked, the 

 peduncle long and deep; pectoral short, reaching f distance to 

 ventrals; ventrals about reaching vent. Colour, dark, the scales 

 much dotted, the edges quite dark, often forming lines along 

 the rows of scales. Length 12 to 15 inches. 



One of the largest and most widely distributed species of 

 the genus, abundant everywhere in the Great Basin of Utah, and 



70 



