NORTH AMERICAN LAND MAMMALS. 185 



t*Sigmodon alleni Bailey. 



1902. Sigmodon alleni Bailey, Proc. Biol. Soc. Washington, vol. 



15, p. 112. June 2, 1902. 

 Type Locality. — San Sebastian, Mascota, Jalisco, Mexico. 

 Range. — Western Jalisco and southern Tepic in western Mexico. 

 According to Allen (Bull. Amer. Mus. Nat. Hist., vol. 22, p. 210, July 25, 

 1906), the name alleni "is beyond question a synonym of mascotensis." 



*Sigmodon fulviventer Allen. 



1889, Sigmodon fulviventer Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 2, p. 180. ' October 21, 1889. 

 Type Locality. — Zacatecas, State of Zacatecas, Mexico. 

 Range. — Kjiown only from two localities; from about 8,000 feet 



altitude near the city of Zacatecas and from Durango, Durango. 



t"^' Sigmodon melanotis Bailey 



1902. Sigmodon melanotis Bailey, Proc. Biol. Soc. Washington, 

 vol. 15, p. 114. June 2, 1902. 



Type Locality. — Patzcuaro, Michoacan, Mexico, at 7,000 feet 

 altitude. 



Range. — Known only from a series of 15 specimens from Patz- 

 cuaro. 



t* Sigmodon minimus Mearns. 



1894. Sigmodon minima Mearns, Proc. U. S. Nat. Mus., vol. 17, 



p. 130. July 19, 1894. 

 Type Locality. — L^pper corner monument. Grant County, New 



Mexico, on the Mexican boundary line, 100 miles west of the 



initial monument on the west bank of the Rio Grande. 

 Range. — Mountains of southern New Mexico, Arizona, and 



northern Mexico. 



t*Sigmodon ochrognathus Bailey. 



1902. Sigmodon ochrognathus Bailey, Proc. Biol. Soc. Washing- 

 ton, vol. 15, p. 115. June 2, 1902. 



Type Locality. — Chisos Mountains, Brewster County, Texas, 

 8,000 feet altitude. 



Range. — The transition zone top of the Chisos Mountains, 

 Texas, and 6,700 feet altitude near Parral, Chihuahua. 



t*Sigmodon leucotis Bailey. 



1902. Sigmodon leucotis Bailey, Proc. Biol. Soc. Washington, 



vol. 15, p. 115. June 2, 1902. 

 Type Locality. — Valparaiso Mountains, Zacatecas, Mexico, 



8,700 feet altitude. 

 Range. — Known only from the type locality. 



