6 Descriptions of Several New Species of SalmonidoB^ 



and number of the vomerine teeth depends greatly on the age 

 of the individual, and may also ordinarily vary much in indi- 

 viduals otherwise alike. 



The female obtained by me from the Straits of Fuca had a 

 very short, small head, forming about one-thirteenth of the total 

 length of the fish. Female salmon usually have smaller heads 

 than the males ; but I do not remember ever seeing those of 

 any species so small, compared to the total length of the body, 

 as in the present instance. The under jaw was received nicely 

 and accurately within the upper. The labial, inferior maxil- 

 lary, and vomerine teeth are very uniform in size, and quite 

 small, those of the intermaxillary larger — but still small. 



The name given to the species by the Klallam Indians is 

 Klutchin; and I suspect it is the same as the STcwowl, or silvery 

 winter salmon of the Nisqually Indians. Its flesh, when fresh- 

 run, is of a bright salmon-red, and inferior to that of none of 

 the class for the table. 



Salmo gibber, Siickley. 



Hump-backed Salmon. 



Hunnun of the Lumnies. Huddoh of the Nisquallies. 



Typical specimen in Smithsonian Collection, Fishes, No. 1132. 



Sp. Ch. — Male. Dorsal profile much more arched than in S. scouleri 

 Rich. After entering fresh water, an adipose hump becomes strikingly 

 apparent, its greatest prominence being nearly opposite a point midway 

 on a line drawn from the eye to the anterior margin of the base of the 

 dorsal fin ; intermaxillary projection curved strongly downwards as in 

 S. scouleri; jaws long, as in the latter, the lower terminated by a 

 dilated knob (as in several other species of the genus), which is armed 

 with four or five strong sharp teeth on each side ; labials and limbs of 

 the lower jaw closely set with very fine sharp teeth, finer and more 

 numerous than those of the S.scotderi; vomerine and palatine teeth 



