80 PROCEEDINGS': BOSTON SOCIETY NATURAL HISTORY 



Genus SIGMODON Say and Ord. 



This genus has been revised by Bailey (Proc. biol. soc. Wash- 

 ington, xv, p. 101—1 1(5, June 2, 1902). The species are arranged 

 as follows : 



Sigmodon hispidus Say and ( >rd. 



Sigmodon hispidus littoralis Chapman. 



Sigmodon hispidus spadicipygus (Bangs.) 



Sigmodon hispidus texianus (Audubon and Bachman). 



Sigmodon hispidus berlandieri (Baird). 



1855. Sigmodon berlandieri Baird, Proc. acad. nat. sci. 

 Philadelphia, vn, p. B33. 



1897. Sigmodon hispidus pallidas Mearns, Preliminary 

 diagnoses of new mammals of the genera Sciurus, Castor, 

 Xeotoma and Sigmodon, from the Mexican border of the 

 United States, p. 4. March 5, 1897. (Reprint: Proc. U. 

 S. nat. mus., xx, p. 504. January 19, 1898.) 



1902. Sigmodon hispidus berlandieri Bailey, Proc. biol. soc. 

 Washington, xv, p. 106. June 2, 1902. 



Type locality. — Rio Nazas, State of Coahuila, Mexico. 



Sigmodon hispidus eremicus Mearns. 

 Sigmodon hispidus arizonae Mearns. 



Sigmodon hispidus mascotensis (Allen). 

 1897. Sigmodon mascotensis Allen, Bull. Amer. mus. nat. 



hist., ix, p. 54. March 15, 1S97. 

 1897. Sigmodon colimae Allen, Bull. Amer. mus. nat. hist., 



ix, p. :>r K March 15, 1897. 

 190-2. Sigmodon hispidus mascotensis Bailey, Proc. biol. sue. 



Washington, xv, p. 108. dune 2, 1902. 



58. Sigmodon hispidus tonalensis Bailey. 



1902. Sigmodon hispidus tonalensis Bailey, Proc. biol. soc. 



Washington, xv, p. L09. June 2, 1902. 

 Type locality. — Tonala, State of Chiapas, Mexico. 



