2 IO Bulletin American Museum of Natural History. [Vol. XX.] 



9. Sigmodon minimus Mearns. One specimen, Guanacevi, 

 Oct. 12. 



10. Sigmodon baileyi Allen. One specimen, Guanacevi, 

 Sept. 21. 



11. Thomomys sinalose Merriam. One specimen, La Boca 

 (alt. 8000 ft.), Oct. 15. 



12. Lepus gaillardi battyi Allen. Three adults and one 

 young in first pelage, Rio Ocampo, June 29 and 30. 



13. Lepus arizonse major Mearns. Three specimens 

 one young in first pelage, Rio Ocampo, June 30; two adults, 

 Guanacevi, Oct. 6 and 13. 



Mr. E. W. Nelson has kindly called my attention to the fact 

 that my Lepus durangce (this Bulletin, XIX, 1904, p. 609) is 

 the same as Lepus holtzneri Mearns, a species I entirely over- 

 looked when describing L. durangce. 



* 14. Urocyon cineroargenteus scotti (Mearns}. Two speci- 

 mens, Rosario, Jan. 21; Rio Ocampo, June. 



* 15. Ursus americanus Pallas. One specimen, skull only, 

 Rio Ocampo. 



1 6. Myotis californicus durangae Allen. One specimen, Rio 

 Ocampo, June. 



17. Antrozous pallidus (Leconte). One specimen, Rio 

 Ocampo, June. 



