1922] Swarth: Birds and Mammals of the StiMne Region 183 



seen there, far above the timber, too wary for a near approach. On 

 Kirk's Mountain, some miles north of Doeh-da-on Creek, Dixon heard 

 a number of marmots whistling. 



At Flood Glacier some marmots, were residing in rock piles at the 

 base of the mountain, several miles back from the river but at a not 

 much higher altitude. Dixon shot two here on August 1, an adult 

 male (no. 31005) and a young one, perhaps a quarter grown (no. 

 31004). The species was not encountered farther down the river. 



The marmots of the mountains about Doch-da-on Creek and Glenora 

 may well be Marmota caligata oxytona Hollister. This would be at 

 about the western limit of that subspecies. The adult male from Flood 

 Glacier has a large skull, well within the limits of oxytona, and ex- 

 hibiting the characters of that race as detailed by Howell (1915, p. 63) , 

 but in external measurements this animal is no larger than coastal 

 specimens of the subspecies caligata. The young male from Flood 

 Glacier is at the same stage of growth as a young caligata at hand 

 from the mouth of the Chickamin River, Alaska, and the two are indis- 

 tinguishable in appearance. The peculiarities of the skull in the adult 

 may be an indication of inter gradation between caligata and oxytona 

 in the middle reaches of the Stikine, but the material at hand does not 

 suffice to settle that point. 



Citellus plesius plesius (Osgood). Bennett Ground Squirrel 



On June 4 two ground squirrels were taken at the Summit (nos. 

 30994, 30995), and one other was seen. This same place was visited on 

 May 29 and again on June 5 without any animals being encountered. 

 It was still quite wintry at that altitude, with much snow on the 

 ground and ice on the lakes, and it seemed likely that most of the 

 ground squirrels were still in hibernation. M. P. Anderson had found 

 them in abundance at the Summit in July and August, 1902 (Allen, 

 1903, p. 534). The species occurs in the Stikine region only on the 

 mountain slopes above timber line; it is found nowhere in the lower 

 valleys. 



The three animals seen were all observed within a radius of two 

 hundred yards. There were a number of fresh looking burrows at 

 the same place. These holes were scattered, though sometimes there 

 were two or three fairly close together; some were amid thickets of 

 low bushes, others out in the open meadows. They were small, con- 

 sidering the size of the animal, and there were no noticeable mounds 

 of earth at the entrances. Of the two animals collected, the stomachs 



