SALMON AND TKOUT TN ALASKA. 51 



3 J to 4 inches in length. These are taken for eating by the Chinese at 

 the cannery. Some are said to be pink-meated. 



The next smallest examples in the salt-water collections are 12 

 from Alert Bay, British Columbia, taken June 5, 1895, probably from 

 the beach near the cannery. With these are a number of small dog 

 fingerlings of about 40 mm. and possibly a few humpback. Many of 

 the specimens are in poor condition and not positively identifiable. 

 The sockeyes average 62 mm. (53-6S). Their food is all pelagic 

 material, small adult copepods, ostracods and amphipods, crab 

 larvae, and a worm-like marine form — Sagitta. The other species 

 were also feeding on Crustacea. 



From Nikolski, Bering Island (Komandorskis), there are 5 year- 

 lings taken July 3, 1895; 2 males, 121 and 130 mm., 3 females, 133 to 

 135 mm. ; all with amphipods in the stomachs. 



From Kiska Island, elune 7, 1894, 1 male, 196 mm., containing 

 copepods, and 2 females, 230 and 245 mm., with stomachs empty. 

 These are said to have been taken in a small lake, but data for this 

 are incomplete. They are apparently not dwarfs. 



From Isanotski Straits, at the extremity of the Peninsula of 

 Alaska, 5 examples were obtained July 15, 1894; 3 males, 123 to 135 

 mm., and 2 females, 132 and 143 mm. The only stomach left in the 

 specimens by the collector contained small Crustacea, schizopods, and 

 amphipods. These fishes were all infested with a parasitic round- 

 worm occurring in masses in the region of the air-bladder. They 

 are also noteworthy for the shortness of the gillrakers. These (on 

 the right side) average less than 33 in number, the longest equal to 

 about the distance between 6, or spanning 5 interspaces. The speci- 

 mens from Nikolski average 34, with a length equal to about 5J 

 interspaces. Those from Kiska run high, averaging 36 in the 3 

 examples at hand. Dundas Bay specimens, in a count of 12 some- 

 what smaller individuals, give an average number of 33 + with aver- 

 age length a little less than 5 interspaces, whereas Karluk fish, in 10 

 examples taken June 8, 1903, show an average number of 35+ and a 

 length equal to nearly 9^ interspaces. 



The examples from Dundas Bay were taken July 24, 1903, in a 

 seine haul on the tide flats with mud and sand bottom. With them 

 occurred dog and humpback fingerlings of about the same size, per- 

 haps in the same school. The individuals saved are 6 males, average 

 80.6 mm. (71-91), and 6 females, average 77.7 (73-85). They were 

 feeding on crustaceans, insects, and insect larva\ 



At Uganuk young salmon are taken in large numbers in seine hauls 

 for sand launces. Of 25 pounds of these small fishes taken in this 

 manner June 15, 1903, 36 per cent were young salmon, mainl}^ sock- 

 eyes, but in addition some cohos; 4 per cent were young herrings; 

 the remaining 60 per cent were sand launces, or, as they are known 



