THE FISHES OF ALASKA. 263 



Body compressed; caudal peduncle deep; head rather short; maxillary extending scarcely beyond 

 eye; teoili fairly strong on maxillary, premaxillaries, palatines, vomer, mandible, and tongue, those 

 on vomer in two rows. 



Body rather profusely covered with small black spots most numerous above lateral line; top and 

 upper part of side of head with few small round black spots; dorsal ami caudal with black spots: anal 

 dusky, unspotted : pectorals and ventrals immaculate; side with a red stripe in life 



Two other somewhat smaller specimens possess tin- same characters. 



An example (no. 3020) from Klawak in life had on tin- Bide a broad rich rosy band extending 

 across the cheek and along the lateral lino to base oi caudal tin: ii" rod on throat; back and side pro- 

 fusely spotted with small round black spots, quite uniformly distributed; caudal (in andpedm 

 thickly spotted. 



We have examined :)! other pecimens of rainbow trout from Southeast Alaska and find them to 

 agree essentially with the specimens above described. Most of them are from Lake McDonald and 

 vicinity, where they were collected in 1905 bj Mr. Burcham. Numerous other examples were examined 



in 1903 at Klawak and Loring. Occasionally an individual in prim idition slam,- more or less red 



or orange on the throat, but ordinarily tin- mark i- indistinct or wholly absent. The bright tip of the 

 anal, ventral, and dorsal lins, however, i- usually present, and this, together with the large scales, 

 absence of red on the throat, and rosj side, w ill usually suffice to distinguish the Alaska rainbow from 

 the Alaska cutthroat . though the two species are exceedingly closet each other. The rainbow attains 

 the larger size. The largest examples seen by us were about 2feet long. One taken at Klawak was 32 

 inches Ions,', and, as already stated, Mr. 11. !■". Swift says he has -ecu several weighed 5 pounds and one 

 that weighed 8 pound 



The Alaska rainbow trout stands easily among the finest of game fishes. It is certainly one of 

 the best, if not the best, in Alaska. Expert anglers fishing in N'aha Stream, at Yes Lay and Klawak 

 nounceit thegamest trout they have ever caught. It takes the fly readily, ndt with a dash or rush, but 

 rather quietly. When once hooked, however, it fights most savagely, jumping often, and is very hard 

 to wear out. 



35. Cristivomer namaycush. tWalliattm i. Great Lakes Trout, Lake Trout. 



The lake trout is doubtless found in all suitable waters in the Yukon basin. An individual weighing 



7.25 pounds was taken in Lake Bennett, one of 11 pounds at Log Cabin, and we have seen specimens Er 



Tagish Arm and Lake Atlin. An example was caught by Dr. Harold Heath in Summit Lake at White 

 Pass, July 20, and one of g I size was taken in Tagish Arm near Caribou I rossing Julj L9, by trolling, 



which t- the usual method of capture. Townsend l^ y 7 i records this species from a lake at the head of 



Fig. 12. i omer namaycush (Walbaum 



Kobuk River, and states that it reaches a length of :;."> net or more. Hedid not find it in the Kobuk 

 River. The fish apparently attains a largi i e in Alaska as in the Great Lakes, tor examples weighing 

 30 to 40 pounds have been reported. It is of considerable commercial importance in this region, large 

 numbers being shipped, particularly from Lake Atlin. to Dawson. 



The lake trout can be readily distinguished from all other Alaskan Salmonidse by the presence 



of a raised crest behind the head of the vomer and free from its shaft, and by th lor. which is dark 



gray, sometimes pale, sometimes almosl black, everywhere with rounded paler spots which are often 

 reddish tinged; head usually vermiculated above; dorsal and caudal reticulate with darker. 



