122 ONYCHOMYS. 



Genus ONYCHOMYS. 



Onychomys leucogaster albescens Meiriam. 15101. Survey coll. 



Proe. Biol. «oc. Wash., XVII, pp. 124-125, June 9, 1904. 

 o()040. Skill iuifl .skull. Adult female. Samalayuca, Chihuahua. 

 Mexico. December 12, 1892. Collected by C. P. Streator. 

 Original number 2399. 



Well-made skin in good condition; skull perfect. 



Onychomys torridus arenicola Mearns. 



Preliminary Diagnoses of New Mammals from the Mexican Border of the United 

 States, p. 8, May 2."i, 189(5. (Reprinted in Proc. U. S. Nat. Mus., XIX, No. 

 1103, p. 139, December 21, 1896.) 



HiH' Skin and skull. Adult male. Rio Grande, about «') miles 



above El Paso, Texas. February 29, 1890. Collected })y Dr. E. A. 



Mearns, U. S. A., and F. X. Holzner. Original number 152s. 



International Boundary Conmiission. Catalogued April 28, 1892. 



Well-made skin in good condition ; skull perfect. 



Onychomys leucogaster brevicaudus Merriam. Biol. Survey coll. 

 North Aiuer. Fauna, No. 5, pp. 52-53, fig. 2, July 30, 1891. 

 IHf I- Skin and skull. Adult male. Blackfoot, Bingiiam County, 

 Idaho. July 16, 1890. Collected by V. Bailey and Dr. B. H. 

 Dutcher, U. S. A. Original number 1442. ' 



Well-made skin in good condition ; skull lacking basioccipital, supraoccipital, 

 interparietal, and part of parietals. 



Onychomys torridus canus Merriam. Biological Surve}^ collection. 



Proc. Biol. Soc. Wash., XVII, p. 124, June 9, 1904. 



90843. Skin and skull. Adult female. San Juan Capistrano, Zacate- 



cas, Mexico. Augu.st 28, 1897. Collected by E. W. Nelson and 



E. A. Goldman. Original number 11574. 



Well-made skin in good condition, except for bare patch on abdomen; skull 

 perfect. 



Onychomys fuliginosus Merriam. Biological Survey (collection. 



North Amer. Fauna, No. 8, pp. 59-61, September 4, 1890. 

 HMI" Skin and skull. Adult female. Black Tank lava beds, north- 

 east of San Francisco Mountain, Arizona. September 27, 18S9. 

 Collected by Dr. C. Hart Merriam and V. Bailey. Original mnn- 

 ber 547. 



Well-mailf skin in good condition; skull perfect. 



Onychomys torridus perpallidus ^Mearns. 



Preliminary Diagno^^es of New Mammals from the Mexican Border of the Inited 

 States, p. 4, May 25, 1896. (Reprinted in Proc. U. S. Nat. Mus., XIX, No. 

 1103, p. 140, December 21, 1896.) 



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