MAKMOTA FLAVIVENTRIS GEOUP. 



56 



warreni. Strangely, however, the skull of this specimen is not like 

 that of either toarreni or ohscura, but agrees well with that of luteola. 



Several lower jaws and fragments of crania, found in a cave on 

 the Manzano Moimtains by Archibald Rea, and broken pieces of a 

 skull secured by Dr. Walter Hough from a cave on the Tularosa River 

 near Old Fort Tularosa (south slope of the Datil Range) indicate the 

 former occurrence of this species in those ranges. The jaws from 

 the Manzano Mountains agree essentially with recent material, but 

 the fragment from the Tularosa River is not specifically identifiable. 



Of the habits of this marmot, Vernon Bailey in his field notes 

 says : 



They live entirely in or among rocks and prefer open country, either in parks or 

 above timber line. They often burrow under large bowlders in the parks and mead- 

 ows, but more often live in fathomless piles of broken rock piled along the base of 

 cLLffs, or in seams and crevices of the cliffs themselves. 



Specimens examined. — Total number, 24, as follows: 



Colorado: Osier, San Juan Mountains (altitude, 9,625 feet), 12;^ Florida, La 

 Plata County (altitude, 7,200 feet), l;^ "Fort Massachusetts" [probably from 

 Sierra Blanca Peak], 1. 



New Mexico: Pecos Baldy, 2; Truchas Peak, 2; \\Tieeler Peak, 4; Aqua Fria 

 Peak, 2. 



Cranial Measurements of the Marmota flaviventris Group. 



Species and locality. 



^2 



Marmota flaviventris fluviventris 



Dormer, Cal 



Fort Crook, Cal 



Mount Hood, Oreg 



Crater Lake, Or^ 



Dormer, Cal 



Glen Alpine Springs, Cal 



Carson, Nev 



Marmota flaviventris avara. 



Okanogan, British Columbia... 



Cascade, British Columbia 



Okanogan, British Columbia. . . 

 ...do 



Midway, British Columbia 



Marmota flaviventris sierrae. 



Carmell Meadows, Tulare Coim- 



ty, Cal 



Whitney Creek, Tulare County, 



Cal... 



Mount Whitney, Cal 



do 



do 



Whitney Meadow, Cal 



Head San Joaquin River, Cal 



1 Collection Colo. Mus. Nat. Hist. 



2 Collection Amer. Mus. Nat. Hist. 



[c??l 



? 



97.1 

 94 



92.5 

 87 



86.2 

 84.1 

 84.6 



85.7 



86.5 



78 



76.4 



79.4 



85.5 



90.2 

 79.1 

 84.5 

 82.1 

 77.3 

 81 



55 

 54 



52.3 

 48.7 

 48.7 

 48.2 

 48.5 



38.2 

 37.6 



42.6 62.3 

 42.5L..- 



33.7 

 34.5 

 32.7 

 31.8 



37 

 37.2 

 37 

 35.4 



46.2 

 44.4 

 41.1 

 40.7 

 40.4 

 39.2 

 55.4 39.6 



58.4 

 57.' 6 



47. 9 34. S 



48.8,34 

 43.3,31 



37. 6156.7 42. 2 

 38.655.6 39.1 

 33.2 52.7137.6 

 42. 6 30. 3^31. 5 52.5 38. 6 

 44.630.833.51.... 37.8 



47.8 



50.5 

 44 

 48 

 46.3 



44, 

 46 



34.3 36.6 57.3 



35 137 

 30.8 32.6 



32.4 39 

 32.2 37.4 

 28.7 32 

 31 :34.4 



58.3 



52 



54.6 



55.2 



52.7 



40.7 



43.6 



37.5 



41.5 



39.3 



37 



37.9 



23 



21.2 



22 



19.2 



17.3 



19 



18.7 



19.5 



17.8 



18 



17.1 



17.4 



18.5 



20.3 

 17 



17.8 



22.3 20.9 



23 

 23 

 19.6 

 19.4 



21.2!20.5 

 21.4 22.1 



20 19.3 

 19. 4 19 

 16. 817.8 

 17.3,19.1 

 17 19 



20 



20 



17.4 



17 



20.2 



20.5 

 20.2 

 20.2 

 20 



16.517.4 19 

 18.7;18.6!l9.5 



3 Collection Mus. Vert. Zool., Univ. of California. 



* Collection Victoria Mem. Mus. 



