140 PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 



Genus PLATYGEOMYS Men-lam. 1 



1895. Platygeomys MERRIAM, North Amer. fauna, no. 8, p. 162. 

 January 31, 1895. Type. Geomys gymnurus MERRIAM. 



Platygeomys gymnurus (Men-lam) . 



1892. Geomys gymnurus MERRIAM, Proc. biol. soc. Wash- 

 ington, vii, p. 166. September 29, 1892. 



1895. Platygeomys gymnurus MERKIAM, North Amer. fauna, 

 no. 8, p. 164 January 31, 1895. 



TYPE LOCALITY. Zapotlan, State of Jalisco, Mexico. 



Platygeomys tylorhinus Men-lam. 



1895. Platygeomys tylorhinus MERRIAM, North Amer. fauna, 



no. 8, p. 167. January 31, 1895. 

 TYPE LOCALITY. Tula, State of Hidalgo, Mexico. 



Platygeomys planiceps Merriam. 



1895. Platygeomys planiceps MERRIAM, North Amer. fauna, 



no. 8, p. 168. January 31, 1895. 



TYPE LOCALITY. North slope Volcano of Toluca, State of 

 Mexico, Mexico. 



Platygeomys fumosus (Merriam). 



1892. Geomys fum.osus MERRIAM, Proc. biol. soc. Washing- 

 ton, vii, p. 165. September 29, 1892. 



1895. Platygeomys fumosus MERRIAM, North Amer. fauna, 

 no. 8, p. 170. January 31, 1895. 



TYPE LOCALITY. Colima City, State of Colima, Mexico. 



Genus ORTHOGEOMYS Merriam. 2 



1895. Orthogeomys MERRIAM, North Amer. fauna, no. 

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



1 Revised by Merriam, North Amer. fauna, no. 8, pp. 162-171. January 31, 1895. 



2 Revised by Merriam, North Amer. fauna, no. 8, pp. 172-179. January 31, 1895. 



