BLACK RAT. 



307 



able : the lower parts are dark ash colour : feet and tail 

 dusky. 



Dimensions : — 



In conclusion, we may remark that the black variety 

 of the Water Vole, to be described hereafter, is not 

 unfrequently mistaken for the true Black Rat, for which 

 we have seen it doing duty in several local museums. 



