110 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Genus XENOMYS Merriam. 



1892. Xenomi/s Merriam, Proc. biol. soc. Washington, vii, p. 

 160. September 29, 1892, Type. — Xenomys nelsoni Merriam. 



Xenomys nelsoni Merriam. 



1892. Xenomys nelsoni Merriam, Proc. biol. soc. Washing- 

 ton, VII, p. 161. September 29, 1892. 



Ttpe LOCALITY. — Haclenda Magdalena, between the City of 

 Colima and jNIanzanillo, State of Colima, Mexico. 



Genus NEOTOMODON Merriam. 



1898. Xeotomodon Merriam, Proc. biol. soc. Washington, xii, 

 p. 127. April 30, 1898. T\\)Q.— Xeotomodon alstoni Merriam. 



Neotomodon alstoni Merriam. 



1898. Xeotomodon alstoni Merriam, Proc. biol. soc. Washr 



ington, XII, p. 128. April oO, 1898. 

 Type locality. — Xahuatzin, State of Micboacan, Mexico. 

 Altitude, 8500 feet. 



Neotomodon orizabae Merriam. 



189.S. Xeotomodon orizahae Merriam, Proc. biol. soc. Wash- 

 ington, XII, p. 129. April 30, 1898. 



Type locality. — Mount Orizaba, State of Puebla, Mexico. 

 Altitude, 9500 feet. 



Neotomodon perotensis Merriam. 



l.su>^. X' otomodon /;^yo?e/(6-/.s 31erriam, Proc. biol. soc. Wash- 

 ington, xii, ]). 129. April 30, 1898. 



Type locality. — Cofre de Perote, State of Vera Cruz, Mex- 

 ico. Altitude, 9500 feet. 



