Thomasomys andersoni
Thomasomys apeco (Apeco oldfield mouse) (Attributes)
Thomasomys aureus (golden oldfield mouse) (Attributes)
Thomasomys auricularis
Thomasomys australis
Thomasomys baeops (beady-eyed mouse) (Attributes)
Thomasomys bombycinus (silky oldfield mouse) (Vulnerable) (Attributes)
Thomasomys burneoi
Thomasomys caudivarius (white-tipped oldfield mouse) (Attributes)
Thomasomys cinereiventer (ashy-bellied oldfield mouse) (Attributes)
Thomasomys cinererventer
Thomasomys cinereus (ash-colored oldfield mouse) (Attributes)
Thomasomys cinnameus (cinnamon-colored oldfield mouse) (Attributes)
Thomasomys contradictus
Thomasomys daphne (Daphne's oldfield mouse) (Attributes)
Thomasomys dispar
Thomasomys eleusis (Peruvian oldfield mouse) (Vulnerable) (Attributes)
Thomasomys emeritus
Thomasomys erro (wandering oldfield mouse) (Attributes)
Thomasomys fumeus
Thomasomys gracilis (slender oldfield mouse) (Attributes)
Thomasomys hudsoni (Hudson's oldfield mouse) (Vulnerable) (Attributes)
Thomasomys hylophilus (woodland oldfield mouse) (Vulnerable) (Attributes)
Thomasomys incanus (Inca oldfield mouse) (Attributes)
Thomasomys ischyrus (strong-tailed oldfield mouse) (Attributes)
Thomasomys kalinowskii (Kalinowski's oldfield mouse) (Attributes)
Thomasomys ladewi (Ladew's oldfield mouse) (Attributes)
Thomasomys laniger (Butcher oldfield mouse) (Attributes)
Thomasomys macrotis (large-eared Oldfield mouse)
Thomasomys monochromos (unicolored oldfield mouse) (Vulnerable) (Attributes)
Thomasomys nicefori
Thomasomys niveipes (snow-footed oldfield mouse) (Attributes)
Thomasomys notatus (distinguished oldfield mouse) (Attributes)
Thomasomys onkiro (Ashaninka oldfield mouse) (Attributes)
Thomasomys oreas (montane oldfield mouse) (Attributes)
Thomasomys paramorum (Paramo oldfield mouse) (Attributes)
Thomasomys popayanus (Popayán oldfield mouse) (Attributes)
Thomasomys praetor (Cajamarca oldfield mouse) (Attributes)
Thomasomys princeps
Thomasomys pyrrhonotus (Thomas's oldfield mouse) (Attributes)
Thomasomys rhoadsi (Rhoads's oldfield mouse) (Attributes)
Thomasomys rosalinda (Rosalinda's oldfield mouse) (Endangered) (Attributes)
Thomasomys salazari
Thomasomys silvestris (forest oldfield mouse) (Attributes)
Thomasomys taczanowskii (Taczanowski's oldfield mouse) (Attributes)
Thomasomys ucucha (Ucucha Oldfield Mouse) (Vulnerable) (Attributes)
Thomasomys vestitus (Dressy oldfield mouse) (Attributes)
Thomasomys vulcani (Pichincha oldfield mouse) (Attributes)