266 ARVICOLA ARENICOLA. 



tipped however with dirty white ; the tail has the upperparts 

 apparently colored like the back, meanwhile the underparts 

 seem to be somewhat lighter in color ; the extreme tip of 

 the tail is black, in the three typical adult specimens at least. 



head and body 136 m.M. 



tail 43 



hindfoot 20 



Notes from the Leyden Museum, Vol. XXIX. 



