EXPLANATION OP PLATE XII. 



Skulls of Evotomys rufocanits smithii. 



From left to right : — 



1. Young male (Type). C'ondylo-basal length 23-7 mm. 



2. Subadult male (Type of ^' Craseomys andersoni"). Condylo-basal 



length 25'7 mm. 



3. Adult (Type of " Craseomys bedfordice"). Condylo-basal length 



20-9 mm. 



