Vol. XII, pp. 21-22 January 27, 1898 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW SPECIES OF EVOTOMYS FROM BRITISH 



COLUMBIA. 



BY VERNON BAILEY. 



Since the publication of my revision of the genus Evotomys in 

 the Proceedings of the Biological Society last May,* a large series 

 of specimens has been collected in the Pacific Coast region from 

 northern California northward into British Columbia. The known 

 ranges of several species have been considerably extended, and 

 one form, inhabiting the low coast country of southern British 

 Columbia, proves to be undescribed. It seems to be entirely dis- 

 tinct from neighboring species and worthy of full specific rank. 

 In external characters it most nearly resembles E. wrangeli,bu.t 

 in cranial characters shows the opposite extreme of develop- 

 ment in the short, wide skull. With its geographically nearest 

 neighbors, E. occidentalis and E. satufatus, on the south, it shows 

 no close affinities, being distinguished from them at a glance by 

 its very short tail and smaller size. 



Evotomys caurinus sp. rtov. 



Type from Lund, east shore of Malaspina Inlet, British Columbia. No. 

 89460, $ ad., U. S. Nat. Mas., Biological Survey Coll. Collected July 18, 

 1897, by Edward A. Preble. Original No. 2147. 



Geographic distribution. — The coast region of British Columbia east of 

 the Strait of Georgia and south to the Frazer River. 



General characters. — -Size rather small; colors dark; tail very short; 

 skull short and wide, with narrow rostrum and rather small audital bulla?. 



Color. — In summer : dorsal area well defined, dark, rich, chestnut dark- 



*Proc. Biol. Soc. Wash., XI, 113-138, May 13, 1897. 



4— Hioi. Soc. Wash., Vol. XII, 1898 (21) 



