Warren — Notes on Distribution of *omr Colorado Mammals. 7 



Chambers Lake. As these chipmunks range to timberlineor higher, there 

 is nothing to prevenl their crossing the Medicine Bow Range. 



Two specimens taken on the Buffalo I'ass road seem to show a tendency 

 toward operarius. The color is very like that species, so much so that 



from it alone I would call them such, and the measurements, especially 

 nt the hind foot, are those of operarius, while the skulls are unmistakably 

 consobrinus. As the locality is a good distance from the present known 

 range of operarius it seems best to refer tlieni to consobrinus, though it 

 will not he so very surprising if future collecting along the Continental 

 Divide, which forms the south and west boundaries of the North Park, 

 showed operarius distributed all along the south side of the Park. 



Sciurus fremonti neomexicanus All 



en. 



Cary, X. Am. Fauna No. :'>:'>, pp. 70-71, speaks of the possibility that 

 this subspecies may occur in Colorado, and mentions that it has been 

 taken at Costilla I'ass and Bear ('anon, New Mexico, within a few miles 

 of the Colorado boundary. A squirrel taken by me at Tercio, Las Animas 

 County, 7800 feet, September 24, 1909, is unquestionably fremonti, being 

 identical with other specimens in my collection from various parts of 

 Colorado. Tercio is 6 miles north of the New Mexico boundary, and 

 about 20 northeasterly from Costilla Pass, and in the eastern foothills of 

 the Culebra Range. It is, however, possible that womexicanus may ex- 

 tend into the State on the west slopes of that range. To the best of my 

 belief no collecting has been done in that region. A squirrel taken at 

 Pagosa Springs, Archuleta County, October 1, 1911. is also fremonti. 

 This place is about 20 miles north of the New Mexico boundary. 



Nycteris borealis (Miiller). 



There are two Colorado occurrences of the Red Bat to be recorded. 

 There are two specimens in the Colorado Museum of Natural History, 

 Denver, taken at W ray, Yuma County, August 25, 1911, by Mr. L. J. 

 Ifersey, Curator of Ornithology at the Museum, who has kindly given 

 me permission to publish the record. .Air. Mersey tells me they were 

 found banging to a wild grape vine in a creek bottom. 



The other record is of a specimen in the collection of the State Histoii- 

 cal and Natural History Society, Denver, taken northwest of Littleton, 

 Arapahoe County, August 27, 1911. J am indebted to the Society, through 

 Mr. HoraceG. Smith, Assistant Curator, for liberty to publish this record. 



It i- odd that these specimens, collected but two days apart, were taken, 

 the first mentioned nearly at the east boundary of the State, and the 

 other at the east base of the foothills, the space between the two localities 

 covering the entire plains region. The only other record of the Red Bat 

 for Colorado is Ureeley, A. E. Beardsley.* 



•Warren, The Mammals of Colorado, Colo, college Pub., Gen. Ser. No. 19, p. 268, 

 1906. 



