378 University of California Puilications in Zoology [Vol. 24 



The specimen of Phenocomys above mentioned (no. 32639) was an 

 adult male, taken Augxist 28 at an altitude of about 5500 feet. Two 

 young males (nos. 32638, 32640) were trapped on July 26 and August 

 11, respectively, in growths of lupine and veratrum just at timber line 

 (about 4500 feet), near our camp. 



I am indebted to Mr. A. Brazier Howell for the identification of 

 these three specimens of Phenacomys. 



Evotomys gapperi saturatus Ehoads. 

 British Columbia Red-backed Mouse 



Found in small numbers in poplar woods at Mission Point, near 

 llazelton, where eight specimens (nos. 32642-32649) were trapped 

 from June 2 to June 18. Trapping in similar surroundings in Kispiox 

 Valley produced no red-backed mice. One specimen (no. 32650) was 

 taken at the summit of Nine-mile Mountain, about 5500 feet elevation, 

 in a Phenacomys runway. 



I am indebted to Mr. A. Brazier Howell for the identification of 

 this series of Evotomys. 



Microtus drummondi (Audubon and Bachman). 



Drummond Meadow Mouse 



Seventeen specimens collected at Hazelton, twelve in Kispiox 

 Valley, and one on Nine-mile Mountain (nos. 32651-32681). Appar- 

 ontlj' of general distribiition in the lowlands, though not abundant at 

 any point where we trapped. The .single specimen from Nine-mile 

 Mountain was caught in a tangle of grass and veratrum just at timber 

 line, about 4500 feet altitude. It was the only one of the species that 

 was seen at that point. 



Microtus mordax mordax (Merriam). Cantankerous Meadow Mouse 



Six specimens, four adult and two juvenile (nos. 32682-32687) 

 trapped at timber line on Nine-mile Mountain. The species was not 

 found in the lowlands. The four adults are distinctly dark colored 

 as compared with mordax from the upper Stikine River, and while 

 the series is too small for satisfactory comparison, it apparently illus- 

 trates intergradation between mordax of the interior and macrurus 

 of the coast, such as we found in the meadow mice of the lower Stikine 

 (seeSwarth, 1922, p. 175). 



