Fig. 1 Fig. 2 



Fig. 1. Mustcla caurina caurina, [^] adult; no. 1063, coll. S. G. Jewett ; 

 Skagit Valley, 4 miles north of International Boundary, British Columbia; Sep- 

 tember, 1920. X 1. 



Fig. 2. Mustela caurina vancouverensis, ^ adult; type, no. 12474, Mus. Vert. 

 Zool. ; Alberni, Vancouver Island, British Columbia; July 20, 1910. X 1. 



Fig. 3 Fig. 4 



Fig. 3. Mustela caurina humholdtensis, J' subadult ; ty|ie, no. 19158, Mus. 

 Vert. Zool.; Carlotta, Humboldt County, California; February, 1913. X 1. 



Fig. 4. Mufitela caurina sierrac, ^ subadult ; no. 24822, Mus. Vert. Zool. ; 

 Bullfrog Lake, Fresno County, California ; August 29, 191G. X 1. 



1 



