THE FISHKS OF BERING SEA. 437 



Karlut. It is widely distributed in Bering Sea, but in relatively small numbers. 

 Although superior in quality to the other species and much larger, it is not abundant 

 enough to be of much value to the canner. Kot seen by Stejneger on Bering Island, 

 but he reports that it is occasionally taken there and on Copper Island mostly in 

 August. 



26. Oncprhynchus gorbuscha (Walbaum). Gorbuscha; Humpback palmon. 



Common in Bering Sea; seen by us at Karluk. Two adult specimens from Petro' 

 paulski Harbor. The young common in the salt lagoon on St. Paul. Eecorded 

 by Dr. Steindachner from Decastris Bay, by Dr. Bean from Plover Bay, and by 

 Stejneger from Bering Island. 



27. Salmo mykiss Walbaum. My kiss; Somka; Kamchatka salmon-trout. (Plate XLIll.) 



By an unfortunate error, the writers have heretofore used the name Salmo myTciss 

 for the Cut-Throat trout of the Northwest. It was known that the Out-Throat was the 

 only true or black-spotted trout in Alaska, and it was assumed that its range extended 

 along the coast to all streams in Bering Sea. But our recent explorations have shown 

 that it probably does not occur in Bering Sea, nor is there any undoubted record to 

 the north of Wrangel. If it reaches Kadiak, or Sitka, or Prince William sound, it 

 is only rarely, and the streams of the Aleutian Islands and the east coast of Bering 

 Sea contain no species of Salmo. The name Salmo mylciss must therefore be restricted 

 to the Kamchatkan species, while the species of the American rivers heretofore called 

 Salmo mylciss must be Salmo cla.rM. 



We have therefore studied with great interest a specimen of the genuine Salmo 

 myMss, the first on record since the times of Pallas, Krascheninnikof, and Steller. The 

 specimen, an adult male 960 mm. long, was taken by Dr. Leonhard Stejneger, Septem- 

 ber 15, 1897, in the Kalakhtyrka Eiver, near Petropaulski, Kamchatka. It was called 

 " sonka" or " somka " by the natives. It is said to occur rarely and to be found in but 

 few rivers, the Kalakhtyrka among them. ' It is considered to be superior as food to 

 other Salmonidte, except the king salmon (O. tschawytscha). 



Head, 4 inches in length; depth, 4J. D. 11. A. 10 (developed rays). Scales, 

 24-125. Mouth, large, the maxillary If in head, being somewhat produced at the top. 

 Vomerine teeth, few, evidently deciduous, only three being present. Eye, 8 J in head; 

 snout, 2f . Pectoral, 2 in head, longest anal ray, 2|. Anal fin high and somewhat fal- 

 cate; ventrals inserted under anterior third of dorsal, reaching about halfway to vent. 

 Adipose fln over posterior end of anal. Caudal lunate. 



Color, dark grayish above, sides silvery; a few small, faint, round, black spots on 

 back and on top of head, these sparse and obscure; a few faint spots on base of 

 dorsal, and some on adipose dorsal. Spots on caudal small, but distinct, especially in 

 middle of fin. 



No trace of red at throat in example preserved in formalin and doubtless none in 

 life. The specimen is now a half skin, in good condition. 



The following measurements were taken from the fresh specimen by Dr. Stejneger : 



mm. 



Totallength 960 



Total length without caudal 853 



Head 215 



Tip of nose to anterior end of dorsal 400' 



Length of base of dorsal ^ i.. 100 



Posterior end of dorsal to anterior end of adipose fin 167 



