RODENTIA: CRICETIDAE 435 



Type Locality. — Rancho Santa Ana, about 8 miles southwest of Padilla, Rio 

 Soto la Marina, Tamaulipas, Mexico. Range. — Known from type locality only. 



Oryzomys rostratus megadon Merriamf * 



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. Vertical range 

 from sea level to at least 500 feet; zonal range, Humid Lower Tropical. 



Oryzomys rostratus yucatanensis Merriamf* 



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, Sept. 23, 1918. 

 Type Locality. — Chichen-Itza, Yucatan, Mexico. Range. — Forested lowlands 

 of Yucatan and Quintana Roo. Zonal range, Arid Lower Tropical. 



alfaroi — group 

 Oryzomys alfaroi alfaroi (J. A. Allen) * 



1891. Hesperomys {Oryzomys) alfaroi]. A. Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 3, p. 214, Apr. 17, 1891. 

 1894. Oryzomys alfaroi J. A. Allen, Abstr. Proc. Linn. Soc. New York, 1893- 



1894, p. 36, July 20, 1894. 

 1908. Oryzomys alfaroi incertus J. A. Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 24, p. 655, Oct. 13, 1908. (Rio Grande, Zelaya, Nicaragua.) 

 Type Locality. — San Carlos, Alajuela, Costa Rica. Range. — Heavily forested 

 mountainous portions of Honduras, Nicaragua, Costa Rica, and western Panama. 

 Vertical range from about 1,000 to 4,000 feet; zonal range, mainly Humid Lower 

 Tropical. 

 Oryzomys alfaroi dariensis Goldmanf* 



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



28, p. 128, June 29, 1915. 

 Type Locality. — Cana (Santa Cruz de Cana) , upper Rio Tuyra, Darien, eastern 

 Panama. Altitude, 2,000 feet. Range. — Heavily forested mountain slopes in 

 eastern Panama at 2,000 feet altitude, and probably adjacent portions of Colom- 

 bia. Zonal range, Humid Lower Tropical. 



Oryzomys alfaroi angusticeps Merriamf* 



1901. Oryzomys angusticeps Merriam, Proc. Washington Acad. Sci., vol. 3, 



p. 292, July 26, 1901. 

 1918. Oryzomys alfaroi angusticeps Goldman, North Amer. Fauna No. 43, 



p. 62, Sept. 23, 1918. 

 Type Locality. — Volcan Santa Maria, Quezaltenango, Guatemala. Altitude, 

 9,000 feet. Range. — Heavily forested slopes of high mountains in southwestern 

 Guatemala and central southern Chiapas. Vertical range from about 8,000 to 

 9,000 feet. 



