94 University of California Publications in Zoology [Vol. 10 



at the same season of the year, are nevertheless in better pelage, 

 with longer hair and thicker underfill'. For the application of 

 the name leucodontus to the Vancouver Island beaver see Osgood, 

 1907, p. 47. 



External Measurements of Castor e. leucodontus from Vancouver Island 



Epimys norvegicus I Erxleben) 

 Norway Rat 

 Probably occurs at all the seaports, as we encountered it far 

 inland at several points. I was rather surprised to find Norway 

 rats in considerable numbers in the vicinity of our camp at the 

 head of the Tahsis Canal, where they had probably been carried 

 from Friendly Cove. The distance is not great, about twenty- 

 five miles, but all the travel up the canal is in small boats, and 

 it is difficult to conceive how the rats escaped observation in 

 transit. The several Indian houses at this point sheltered in- 

 numerable rats, but as the buildings are occupied but a brief 

 portion of the year the animals must obtain other sustenance 

 than the garbage and scraps they are most fond of. They wen- 

 living in the woods in the immediate vicinity of the cabin in 



