RODENTIA: CRICETIDAE 459 



1914. Reithrodontomys julvescens difficilis A. H. Howell, North Amer. Fauna 

 No. 36, p. 50, June 5, 1914. 



Type Locality. — Orizaba, Veracruz, Mexico. Altitude, about 4,500 feet. 

 Range. — Humid eastern slopes of Sierra Madre Oriental of eastern Mexico. 

 Known range from vicinity of Orizaba north to vicinity of San Agustin, Hidalgo. 

 Vertical range from 1,500 feet near Tlacotepec to 6,500 feet near Zacualpilla, 

 Veracruz (Hooper, Univ. Michigan Mus. Zool. Misc. Publ. 77, p. 110, Jan. 16, 

 1952) . 



Reithrodontomys fulvescens toltecus Merriamf* 



1901. Reithrodontomys levipes toltecus Merriam, Proc. Washington Acad. 



Sci., vol. 3, p. 555, Nov. 29, 1901. 

 1903. Reithrodontomys inexspectatus Elliot, Field Columb. Mus. Publ. 71, 

 Zool. Ser., vol. 3, No. 8 (February), p. 145, Mar. 20, 1903. (Patzcuaro, 

 Michoacan, Mexico.) 

 1914. Reithrodontomys julvescens toltecus A. H. Howell, North Amer. Fauna 



No. 36, p. 51, June 5, 1914. 

 Type Locality. — Tlalpan, Distrito Federal, Mexico. Altitude, 7,500 feet. 

 Range. — Mountains and valleys bordering southern part of Mexican Plateau. 

 Known geographic range from Zimapan, Hidalgo, and localities in Distrito Fed- 

 eral west to Los Reyes, Michoacan. Vertical range from 4,400 feet near Uruapan, 

 Michoacan, to 8,500 feet near Contreras, Distrito Federal (Hooper, Univ. Michi- 

 gan Mus. Zool. Misc. Publ. 77, p. 101, Jan. 16, 1952) . 



Reithrodontomys fulvescens tenuis J. A. Allen* 



1899. Reithrodontomys tenuis J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 12, 

 p. 15, Mar. 4, 1899. 



1914. Reithrodontomys fulvescens tenuis A. H. Howell, North Amer. Fauna 

 No. 36, p. 45, June 5, 1914. 



Type Locality. — Rosario, Sinaloa, Mexico. Altitude, about 200 feet. Range. — 

 Pacific coastal plain and adjoining foothills and valleys of southern Sonora, 

 Sinaloa, extreme western Chihuahua and Durango, and northern Nayarit. 

 Known range from vicinity of Alamos, Sonora, south to vicinity of Tepic, Nayarit. 

 Vertical range from near sea level at Mazatlan to 3,000 feet near Tepic (Hooper, 

 Univ. Michigan Mus. Zool. Misc. Publ. 77, p. Ill, Jan. 16, 1952) . 



Reithrodontomys fulvescens nelsoni A. H. Howell f * 



1914. Reithrodontomys fulvescens nelsoni A. H. Howell, North Amer. Fauna 

 No. 36, p. 53, June 5, 1914. 



Type Locality. — Colima, Colima, Mexico. Altitude, about 1,300 feet. Range. — 

 Coastal valleys and adjoining lower slopes of mountains of southern Nayarit, 

 extreme western Jalisco, Colima, and probably southwestern Michoacan. 

 Known range from vicinity of Santa Isabel (intergrading area), 3,800 feet, 

 Nayarit, south at least to vicinity of Colima, 1,700 feet, Colima (Hooper, Univ. 

 Michigan Mus. Zool. Misc. Publ. 77, p. 113, Jan. 16, 1952) . 



Reithrodontomys fulvescens infernatis Hooper 



1950. Reithrodontomys fulvescens infernatis Hooper, Proc. Biol. Soc. Wash- 

 ington, vol. 63, p. 167, Dec. 29, 1950. 



