PROCEEDINGS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. II, pp. S3-109. July 26, 1900. 



PRELIMINARY REVISION OF THE EUROPEAN 

 REDBACKED MICE. 



By Gerrit S. Miller, Jr. 



It has been generally supposed that only three redbacked 

 mice, Evotomys 7'utilHS, E. riifocamis^ and E. '' glai-eohts,' oc- 

 cur in Europe, some writers assuming that even this small num- 

 ber should be reduced. That this view is highly incorrect is 

 shown by the material recently collected for the United States 

 National Museum by Mr. J. Alden Loring, Miss Thora Stei- 

 neger, and Mr. Robert T. Young, supplemented by series pre- 

 sented and loaned by Mr. Oldfield Thomas and the specimens in 

 my private collection, a total of about 300 specimens. While it 

 is clear that the number of recognizable forms must be increased 

 from three to ten or thereabouts, it is almost equally certain that 

 still others remain to be discovered in the many unexplored 

 portions of Europe. At present, therefore, I am able to give 

 nothing more than a preliminary revision of the group, limited 

 to the mice occurring west of Austria. Even in this small area 

 much more collecting must be done before it will be possible to 

 solve all of the systematic problems relating to this one genus. 



During the preparation of this paper, published here by per- 

 mission of the Secretary of the Smithsonian Institution, I have 

 received aid from Mr. Oldfield Thomas, Mr. G. E. H. Barrett- 

 Hamilton, Dr. Robert Collett, and Mr. Vernon Bailey. 



NOMENCLATURE. 



While it is not necessary to enter into any further discussion 

 of the generic names that have been applied to the redbacked 

 Proc Wash. Acad. Sci., July, 1900. (S3) 



