North American Salmoiiidce. 309 



the caudal itself is somewhat short and narrow. Head long, but 

 not deep. Dorsal and caudal fins freely spotted with oval 

 black spots. Body marked with small stellate and irregular 

 dark spots, their number and size varying greatly in different 

 individuals. There are usually two rows of teeth on the vomer. 

 The head is contained nearly five times in the total length, 

 which rarely exceeds eighteen or twenty inches. 



Habitat— Ohioxn^^ from the waters of Puget Sound and the 

 streams in that vicinity, by Drs. Kennerly, Cooper, and Suckley. 



l^afluio Bairdii, Suckley. 



Baird's River-Trout. Red-spotted Rocky Mountain Trout. 



Sp. Ch. Head contained about five times in the total length. 

 Snout having a deep notch between the extremities of the pre- 

 maxillaries receiving a conical fleshy protuberance, projecting 

 upwards from the chin. Teetli strong, hooked, and very uniform 

 in size ; two rows on the tongue ; from two to four on the front 

 of the vomer, — none on its shaft [in one of the specimens 

 examined, a single accidental small tooth was found on the 

 shaft of this bone, on the other none]. Sides of the body 

 beautifully spotted with rose-colored spots of the size of small 

 peas, of which there are numerous rows. ISTostrils double. 

 Tail broad, and but moderately lunated. Scales small. An- 

 terior rays of the pectorals, ventrals, and anal broad, and the 

 skin upon them yellowish red, being colored differently from 

 the rest of the fin, as in the 8. fontinalis. Attains a weight of 

 ten or twelve lbs. 



Habitat. — Clarke's Fork of the Columbia, and its tributaries. 



l§alBiiio Parkei, 8uckley. 



Parke's River Trout. Green speckled-backed Trout. 



Aitshst of the Kootenays. 



Sp. Ch. Head contained about four and a half times in the 

 total length ; its top flat ; muzzle pointed. Tail forked ; im- 



