1922] Swarth: Birds and Mammals of the Stikine Region 187 



The first red squirrel collected near Telegraph Creek, on May 26, 

 had almost completely finished the molt into the summer pelage. Others 

 shot during the next two weeks are either in the winter pelage through- 

 out or else variously advanced in the change, showing ragged patches 

 of the old coat. Those taken farther down the river are all in summer 

 pelage. 



An adult female taken at Glenora July 4 (no. 30986) has the 

 incisors of both jaws malformed so that they could not meet, the two 

 lower teeth passing together to the left of the upper ones. All four 

 had grown to abnormal length, but not so much so as to endanger the 

 animal's life. They were evidently worn down somewhat by the fric- 

 tion sideways ; the teeth are beveled, but not on the same plane as in 

 normal individuals. This squirrel was in good condition, in fact there 

 was some fat under the skin. A western goshawk collected at Flood 

 Glacier contained in its stomach the remains of a red squirrel ; doubtless 

 all the hawks of the region prey upon this species to some extent. 



TABLE V 



Measurements in millimeters of Sciurus from the Stikine Region and from south- 

 eastern Alaska 



,,.,,. Total Tail Hind 



Sciurus hudsoniCUS hudsoniCUS length vertebrae toot Ear 



30975 (f Telegraph Creek, B. C. May 29, 1919 330 130 47 17 



30976 cf Telegraph Creek, B. C. May 29, 1919 315 125 48 17 



30977 cf Telegraph Creek, B. C. May 29, 1919 330 127 47 17 



30978 cf Telegraph Creek, B. C. May 29, 1919 332 122 48 16 



30982 cf Telegraph Creek, B. C. June 18, 1919 330 125 50 18 



30983 c? Telegraph Creek, B. C. May 27, 1919 330 133 50 19 

 30987 cf Doch-da-on Creek, B. C. July 22, 1919 300 120 48 17 



Sciurus hudsoniCUS picatus 



30991 cf Great Glacier, B. C. Aug. 10, 1919 310 122 47 14 

 30993 c? Sergief Id., Alaska Sept. 4, 1919 300 115 45 13 



Average measurements of 8 males from 



southeastern Alaska 312.37 125.37 50.75 



Sciurus hudsoniCUS hudsonicus 



30974 9 Telegraph Creek, B. C. May 26, 1919 320 120 50 16 



30979 9 Telegraph Creek, B. C. May 30, 1919 320 125 47 16 



30980 9 Telegraph Creek, B. C. May 31, 1919 325 125 46 16 



30984 9 Glenora, B. C. July 1, 1919 320 130 44 14 

 30986 9 Glenora, B. C. July 4, 1919 295 127 44 17 



Sciurv,s hudsonicus picatus 

 30990 9 Flood Glacier, B. C. July 31, 1919 293 109 47 16 



30992 9 Sergief Id., Alaska Sept. 2, 1919 300 114 48 14 



Average measurements of 8 females from 



southeastern Alaska 308.25 123.0 51.25 



