358 BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



t*Oryzomys rostratus rostratus Merriam. 



1901. Oryzomys rostratus Merriam, Proc. Washington Acad. Sci., 

 vol. 3, p. 293. July 26, 1901. 



Type Locality. — Metlaltcyuca, Puebla, Mexico. 



Range. — Forested coastal plains and basal mountain slopes in 

 southeastern Tamaulipas, northern Puebla, Vera Cruz, and 

 northeastern Oaxaca; altitudinal range from sea level to about 

 1,500 feet; Arid and Humid Lower Tropical Zones. 



t*Oryzomys rostratus megadon Merriam. 



1901. Oryzomys rostratus megadon Merriam, Proc. Washington 

 Acad. Sci., vol. 3, p. 294. July 26, 1901. 



Type Locality. — Teapa, Tabasco, Mexico. 



Range. — Heavily forested coastal plains and lower mountain 

 slopes in Tabasco and Campeche; altitudinal range from sea 

 level to at least 500 feet; Humid Lower Tropical Zone. 



t*Oryzomys rostratus yucatanensis (Merriam). 



1901. Oryzomys yucatanensis Merriam, Proc. Washington Acad. 



Sci., vol. 3, p.. 294. July 26, 1901. 

 1918. Oryzomys rostratus yucatanensis Goldman, North Amer. 



Fauna, No. 43, p. 55. September 23, 1918. 

 Type Locality. — Chichenitza, Yucatan, Mexico. 

 Range. — Forested lowlands of Yucatan and northern Quintana 



Roo; mainly Arid Lower Tropical Zone. 



alfaroi-grouj). 



*Oryzomys alfaroi alfaroi (Allen). 



1891. Hes-peromys (Oryzomys) alfaroi Allen, Bull. Amer. Mus. 



Nat. Hist., vol. 3, p. 214. April 17, 1891. 

 1894. Oryzomys alfaroi Allen, Abstract Proc. Linn. Soc. New 



York, 1893-1894, p. 36. July 20, 1894. 

 1908. Oryzomys alfaroi incertus Allen, Bull. Amer. Mus. Nat. 



Hist., vol. 24, p. 655. October 13, 1908. (Rio Grande, 



Nicaragua.) 

 Type Locality.— San Carlos, Costa Rica. 

 Range. — Heavily forested mountainous portions of Honduras, 



Nicaragua, Costa Rica, and western Panama; altitudinal range 



from about 1,000 to 4,000 feet; mainly in Humid Lower 



Tropical Zone. 



t*Oryzomys alfaroi dariensis Goldman. 



1915. Oryzomys alfaroi dariensis Goldman, Proc. Biol. Soc. 



Washington, vol. 28, p. 128. June 29, 1915. 

 Type Locality. — Cana, eastern Panama. Altitude, 2000 feet. 

 Range. — Heavily forested mountain slopes in eastern Panama 



at 2,000 feet altitude, and probably adjacent portions of 



Colombia; Humid Lower Tropical Zone. 



