No. 615] INHERITANCE IN PEROMYSCUS 205 



When the number of caudal vertebra was considered, 

 we had the same arrangement as the last for the three 

 races for which determinations had been made, viz. : 

 Eureka > La Jolla > Victorville. 



In respect to foot length, the following order held : 



r La Jolla, 

 Eureka > < Berkeley, 



[ Victorville. 



Finally, as regards ear length, we had a quite different 

 alignment, viz. : 



It is plain that these " subspecies" have diverged from 

 one another in respect to characters which have varied 



