riSHES. 317 



328G1. (61.) Audiaevsky, March, 1878. 

 Young Xelma. — Entire imcler surface and skies silvery white above the lateral Hue, ehangiug to 

 steel blue. The dorsal line olive, also the top of head the same. Tail, dorsal, and adipose dorsal 

 olive ; the other fins colorless. 



■32924. (116.) Audraevsky, winter of 18T7-'7S. 

 Whitetish (Xelma of the Russian traders). — Specimens of this fine Whitefish were seen from 

 various points along the Yukon, also on the Kuskoquim and from Kotzebue Sound. They are 

 taken abundantly in the brackish water at the mouth of the Yukon at certain seasons and often 

 iu tide creeks about Saint Michaels. In spring about the time the ice is running down the Yukon 

 this fish runs for a few days up all of the tributary streams that communicate with small lakes, 

 where the Nelma passes the summer. In autumn about the time the Yukon freezes over they run 

 back again and are caught abundantly for a few weeks iu fyketraps up as high as Anvik at least. 

 They reach a large size, frequently weighing from So to iO pounds. These fish are taken with hook 

 as well as in traps and nets. 



42. Saxvelinus malma (Walb.). Salmon Trout t-kathlulc-pil-). 



32895. (12f.) Golsova River, October 25, 1878. 

 S Salmon Trout, from Golsova River, October 25, 1878. 



The interior of the mouth is black : but when fully opened, exposing the partially concealed 

 membranes at the angles, under the tongue and the brauchiostegals, th'^se surfaces appear white. 



32910. (127.) GolsoTaEivcr, October 25, 1878. 



Is a 9 of the same species, but the colors have faded on the spots, &c. The spots were white 

 two days after her capture and the body uniform steel-blue, with a rosy tint on flanks and pale 

 yellowish white on ventral surface. The head is colored like the body, with an olive shading on 

 the upper surface. Pectorals fleshy brown. Yentrals pinkish white, bordered on outer extremity. 

 Anal like ventrals. Dorsal, adipose dorsal, and tail bluish-olive. Eye golden-yellow. 



32911, 32J12. (128, 129.) Golsova River, October 25, 187?. 



Appear to be exactly like 127, except being a trifle smaller and, as usual in the Salmonidce, 

 slenderer, and with more obtuse nose iu consequence. Traces of pink and rose show along the 

 sides of abdomen and faint pink is visible on most of the lateral spots. 



The lateral line extends in a straight line the entire length on both specimens. 



The first of June, 1S77, S.iImDu Trout were r.itlier numerous about the mouths of streams 

 flowing into the bay at Unalaska, and young ones from 2 to 3 inches long were numerous in the 

 creeks. Salmon Trout ruu iu the Yukon aud other stream-s witli the s.ilmon iu June and .]ul}% 

 but are Tuost numerous in fall just before and after the streams freeze over. Few are taken later 

 than November aud from theu until the ice leaves iu spring. They are abundant and widely 

 distributed. They are taken, like the salmon, iu nets or traps. During August, ISSl, we found 

 the natives taking them in gill-nets along the north coast of Siberia. The last of Sei)teinbei-, 1881, 

 we caught a number of trout iu the stream.^ flowing into the bays about Unalaska. Only small 

 examples could be taken with a hook baited with salmon-eggs, but specimens weighing as much as 

 a pound or more were readily secured with a brown hackle. They are game aud offer good sport 

 on favorable days. 



43. Onoorhynchus chouicha, (Walb.). King Salmon, Chowichee Salmon (Tdgti- 

 sMR-whul). (Plate XXI). 



32846. (15.) .Saiut Michaels, July 20, 1877. 



King Sabno7i {Choirccha, Russian; Tngeshiilhpul-, Esk.). — Length, 38 inches; deptli, SJ. 

 Color, bright silvery on sides and below, becoming nearly white on abdomen. The back and top 

 of head a clear olive greenish. This species is taken along the shore of Norton Sound immediately 

 after tlie ice disappears iu spring, my earliest date being .Time G, 1877. On the Lower Yukon, up, 



