EVOTOMYS 



247 



G. M. Allen, I find it, for reasons dealt with below, impossible to 

 regard " Craseomys nhaibseius " Thomas as being more than a well- 

 marked subspecies of E. rufocanus ; on the other, I am unable to 

 recognize more than a subspecific difference between E. r. shanseius 

 and the forms inhabiting Korea and Japan. 



In my opinion our present material warrants the recognition 

 of only four well-marked subspecies of E. rufocanus, viz., E. r. rufo- 

 canus ranging throughout Northern Europe and Asia from Norway 

 to Kamtschatka and southwards in Asia to the Svansk Moun- 



FiG. 82. — Evotomys rufocanus Sund. Lower Molars. 



\(lype of " Crdseomys andersoni " ) ; d,d'. G. 1.4.298, adult (type of " C. 

 bedfordiae ") ; e, e'. E. r. rufocanus (Irkutsk), 14.11.1.79, old. 



tains and Lake Baikal ; E. r. shanseius from China ; E. r. regulus 

 inhabiting Korea ; and E. r. smithii ranging through Jaj^an, 

 including Saghalien. The characters distinguishing these sub- 

 species may be " keyed " as follows :• — 



\ Key la the subspecies of E. rufocanus : — 



I A. Mantle bright rufous, sharply defined, and conspicuously con- 

 trasted with face, flanks, and rump. Tail short, usually 

 about one-third of head and body length. Skull with 

 square braincase and small bullae. 



E. r. rufocanus SundevaU. 

 Northern Europe and Asia (Norway to Kamtschatka; 

 south to Syansk Moimtains and L. Baikal). 



