Megadontomys nelsoni Merriam 1898
Megadontomys nelsoni Merriam 1898, Proc. Biol. Soc. Wash., 12: 116.
Type Locality: México, Veracruz, Jico, 6000 ft (1830 m).
Vernacular Names: Nelson's Big-toothed Deermouse.
Distribution: E slopes of Sierra Madre Oriental, from SE Hidalgo to C Veracruz, México.
Conservation: IUCN – Lower Risk (lc).
Discussion: Relegated to a subspecies of Peromyscus thomasi by Musser (1964); reinstated to species rank by Carleton (1989).