University of Colorado Bulletin, Vol* XV, No, 6, June 192$ ^ 

 pages 253 - 263. 



AMPHIBIA AND REPTILIA OF COLORADO 



PART IP 



By Max M. Ellis and Junius Henderson 



During the past two years many Colorado amphibians and reptiles 

 (including specimens of the Red-spotted Toad, Bufo punctatus Baird 

 and Girard, a species not previously recorded from this state) have 

 been added to the University Museum collections. The data from 

 these collections, together with the data concerning specimens in the 

 museum of Colorado College kindly sent us by Mr. E. R. Warren, form 

 the basis of this report. 



The numbers in parenthesis after certain records are the University 

 of Colorado Museum numbers of the specimens so listed. Specimens 

 in the Colorado College Museum are marked (C.C.). 



Class AMPHIBIA 



Family Ambystomidae 



Ambystoma tigrinum (Green) 



Tiger Salamander 



Boulder, October 8, 1913 (290); Canyon City, November, 1913; larvae, University 

 Lake Boulder, November, 1913, and March, 1914; larvae and adults, near Abna, Park 

 County, above 10,000 ft., August, 1914; Nederland, Boulder County, above 9,000 ft 

 1914; larvae. Lake Moraine, El Paso County (C.C); reported by Warren from Crested 

 Butte, Gunnison County, above 7,000 ft., and from Colorado Springs. 



Reports from all parts of the state show this species to be very 

 abundant in ponds, lakes, and reservoirs. Mr. Sam Bloomfield, of 

 Denver, informs us that he has found " waterdogs," as the young of 

 this salamander are locally known, in most of the lakes and ponds in 

 eastern Colorado in which he has seined for fish. That the tiger 

 salamander winters in Colorado in both the larval and adult stages 

 is shown by the capture of several large specimens of the larvae of this 



. Publication of the Colorado Biological Survey Number 17. Part I appeared in the Utiivenity oj 

 Colorado Studies, Vol. X, pp. 39-129. i9i3- 



253 



