OREGON FLYING SQUIRREL. 135 



considerable portion of the country in which both species have since been 

 found. 



We hope, when presenting an account of the habits of P. sabrinus, to be 

 able to identify the variety above-mentioned, (P. sabrinus, var. B. Alpinus 

 of Richardson,) and if necessary, correct any error in our account of the 

 geographical distribution of the present species {P. Oregonensis.) 



