NO. 2057. THE GRASSHOPPER MICE—H0LLI8TER. 489 



EXPLANATION OF PLATE 15. 



Skulls of Onychomys, dorsal views, about natural size. 



Fig. 1. Onychomys leucogaster leucogaster, U.S.N.M (Biological Survey Coll.), Cat. 

 No. 180027, male adult, Hankinson, North Dakota, July 25, 1912, V. Bailey. 



2. Onychomys leucogaster fuscogriseus, U.S.N.M. (Biological Survey Coll.), Cat. 



No. 149060, female adult, Baird, Washington, June 6, 1907, S. E. Piper. 



3. Onychomys leucogaster vielanophrys, U.S.N.M. (Biological Survey Coll.), Cat. 



No. 57201, male adult. Bluff City, Utah, November 8, 1893, J. A. Loring. 



4. Onychomys leucogaster ruidosse, U.S.N.M. (Biological Survey Coll.), Cat. No. 



127387, female adult, Capitan Mountains, New Mexico, July 2, 1903, J. H. 

 Gaut. 



5. Onychomys leucogaster capitulatus, U.S.N.M. (Biological Survey Coll.), Cat. 



No. 202615, male adult, Grand Canyon, Arizona, October 3, 1913, E. A. 

 Goldman. 



6. Onychomys leucogaster longipes, U.S.N.M. (Biological Survey Coll.), Cat. 



No. 32232, female adult, Laredo, Texas, December 23, 1890, W. Lloyd. 



7. Onychomys torridus torridus, U.S.N.M., Cat. No. 36151, female adult, San 



Pedro River, Mexican Boundary Line, October 25, 1892, Dr. E. A. Meams. 



8. Onychomys torridus clarus, U.S.N.M. (Biological Survey Coll.), Cat. No. 



40226, female adult, Olanche, Owens Lake, California, May 18, 1891, 

 F. Stephens. 



9. Onychomys torridus ramona, U.S.N.M. (Biological Survey Coll.), Cat. No. 



94067, female adult. Riverside, California, July 23, 1897, Dane Coolidge. 



10. Onychomys torridus macrotis, U.S.N.M. (Biological Survey Coll.), Cat. No. 



138946, female adult, San Quentin, Lower California, Mexico, August 4, 

 1905, E. W. Nelson and E. A. Goldman. 



11. Onychomys torridus yakiensis, U.S.N.M. (Biological Survey Coll.), Cat. No. 



96391, female adult, Camoa, Rio Mayo, Sonora, Mexico, January 17, 1899, 

 E. A. Goldman. 



12. Onychomys torridus surrufus, U.S.N.M. (Biological Survey Coll.), Cat. No. 



93839, female adult, Miquihauna, Tamaulipas, Mexico, June 8, 1898, 

 E. W. Nelson and E. A. Goldman. Type. 



