262 



UNIVERSITY OF COLORADO STUDIES 



0\d. eVova. V\>cv.e. 



■^YeAtTdC aVkOrt. \\y\& 



Former hob/fat 

 of /ark^ae. 



IcftVoo&o.. 



Present ^fpab/fzrT 

 of /brvae. 





Fig. 3. — Diagram of Park Lake, Tolland, Colorado, showing the habitat of the 

 salamanders after the shore line had changed. Notice the old shore line and the former 

 habitat of the salamanders. The map shows also the places where the following tem- 

 perature averages were taken. 



Summary 

 This paper is intended to illustrate the following points relative 

 to the habits of the salamander, Amblystoma tigrinum, as observed 

 in Park Lake, Tolland, Colorado, in the summer of 1909. 



