SMITHSONIAN INSTITUTION. 



UNITED STATES NATIONAL MUSEUM. 



DESCRIPTIONS OF TWO SUPPOSED NEW SPECIES 



OF MICE FROM COSTA RICA AND MEXICO, 



WITH REMARKS ON HESPEROMYS 



MELANOPHRYS OF COUES. 



BY 



J. A. ALLEN, 



Curator in the American Museum o/ Natural History, New York. 



From Ihe Proceedings of the United States National Museum, Vol. XIV, pages 193-195. 



[No. 850.] 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1891. 



