NORTH AMERICAN LAND MAMMALS. 249 



Platygeomys planiceps — Continued. 



Type Locality. — North Slope Volcano of Toliica, State of Mex- 

 ico, Mexico. 



Range. — Northern and eastern slopes of the volcano of Toluca 

 and adjacent part of the valley to the city of Toluca, from an 

 altitude of 8,600 feet up to the vicinity of timber line. 



t*Platygeomys fumosus (Merriam). 



1892. Geomys fumosus Merriam, Proc. Biol. Soc. Washington, 

 vol. 7, p. 165. September 29, 1892. 



1895. Platygeomys fumosus Merriam, North Araer. Fauna, No. 



8, p. 170. January 31, 1895. 

 Type Locality. — Colima City, State of Colima, Mexico. 

 Range. — Plain of CoHma, Mexico (altitude 1,500 to 2,000 feet). 



Genus ORTHOGEOMYS Merriam.* 



1895. OrtJiogeomys Merriam, North Anier. Fauna, No. 8, 

 p. 172. January 31, 1895. Type, Geomys scalops Thomas. 



Orthogeomys cuniculus Elliot. 



1905. OrilLogeomys cuniculus Elliot, Proc. Biol. Soc. Wash- 

 ington, vol. 18, p. 234. December 9, 1905. 

 Type Locality. — Yautepec, Oaxaca, Mexico. 



*Orthogeomys scalops (Thomas). 



1894. Geomys scalops Thomas, Ann. and Mag. Nat. Hisf., ser. 6, 

 vol. 13, p. 437. May, 1894. 



1895. Orthogeomys scalops ^Ierriam, North Amer. Fauna, No. 8, 

 p. 174. January 31, 1895. 



Type Locality.' — Tehuantepec, State of Oaxaca, Mexico. 

 Range. — Extreme southern Mexico, in State of Oaxaca, and 

 probably adjacent part of Chiapas. 



*Orthogeomys grandis (Thomas). 



1893. Geomys grandis Thomas, Ann. and Mag. Nat. Hist., ser. 6, 

 vol. 12, p. 270. October, 1893. 



1895. Orthogeomys grandis ^Ierriam, North Amer. Fauna, No. 8, 



p. 175. January 31, 1895. 

 Type Locality. — Duenas, Guatemala. 

 Range. — Highlands of Guatemala. 



t*Orthogeomys nelsoni Merriam. 



1895. Orthogeomys nelsoni Merriam, North Amer. Fauna, No. 8, 



p. 176. January 31, 1895. 

 Type Locality. — Mount Zempoaltepec, State of Oaxaca, 



Mexico. Altitude, 8,000 feet. 

 Range. — Mount Zempoaltepec, in the State of Oaxaca, Mexico, 



and the adjacent region, including Comaltepec and Totontepec. 



» Revised by Merriam, North Amer. Fauna, No. 8, pp. 172-179, Jamuary 31, 1895. 



