EXPLANATION OF PLATES. 

 PLATE II. 

 [Much reduced.] 



Fig. 1. Marraota olympus, S adult, Olympic Mountains, Wash., (altitude 5,000 feet), 

 Aug. 28, 1897. (No. 92768, U. S. Nat. Mus., Biological Survey collection.) 

 2. Marmota fiaviventris obscura, ^ adult. Wheeler Peak, N. Mex. (altitude 12,400 

 feet), July 27, 1904. (No. 133506, U. S. Nat. Mue., Biological Survey 

 collection.) 



PLATE III. 



[Natm-al size.] 



Fig. 1. Marmota caligata oxytona. Klappan Mountain, British Columbia. (No. 170- 

 683, IT. S. Nat. Mus., Biological Survey collection.) 



2. Marmota fiaviventris fiaviventris. Summer Lake, Oreg. (No. 89311, U. S. 



Nat. Mus., Biological Survey collection.) 



3. Marmota monax preblorum. Woburn, Mass. (No. 78358, U. S. Nat. Mus., 



Biological Survey collection.) 



PLATE IV. 



[Three-fourths natiiral size.] 



Fig. 1. Marmota fiaviventris dacota, S' adult, Bridger Pass, Wyo. (No. 25529, U. S. 

 Nat. Mus., Biological Survey collection.) 



2. Marmota monax monax, c? adult, Peaks of Otter, Va. (No. 143962, U. S. 



Nat. Mus.) 



3. Marmota caligata oxytona, c? adult. Lake Thudade, British Columbia. (No. 



202791, U. S. Nat. Mus., Biological Survey collection.) 



4. Marmota fiaviventris sierrae, 9 adult, head of San Joaquin River, Cal. (No, 



41950, U. S. Nat. Mus., Biological Survey collection.) 



5. Marmota monax rufescens, c? adult. Lake George, N. Y. (No. 67695, U. S. 



Nat. Mus., Biological Survey collection.) 



6. Marmota caligata caligata, [c? ?] adult, Becharof Lake, Alaska. (No. 131437, 



U. S. Nat. Mus., Biological Survey collection.) 



Plate V. 

 [Three-fourths natural size.} 



Fig. 1. Mamwta monax monax, ^ adult, Peaks of Otter, Va. (No. 143962, U. S. 

 Nat. Mus.) 



2. Marmota monax rufescens, c? adult (type), Elk River, Minn. (No. 186521, 



U. S. Nat Mus., Merriam collection.) 



3. Marmota monax preblorum, c? adult, Wilmington, Mass. (No. 78355, U. S. 



Nat. Mus., Biological Survey collection.) 



4. Marmota monax ignava, S' adult, L'Anse au Loup, Labrador. (No. 8871, Mub. 



Comp. Zool.) 



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