<i>Tylomys nudicaudus</i> (Rodentia: Cricetidae)

Abstract Tylomys nudicaudus Peters, 1866, is a large cricetid commonly called Peter’s Climbing Rat. It can be distinguished from other members of Tylomys by its reddish-brown to light brown dorsal pelage, which becomes more intense on the flanks, whitish or pale reddish-yellow ventral pelage, and large, dark, naked ears. The tail length is almost as long as head–body length, naked, and shiny with large scales forming wide rings along the dark, proximal two-thirds; the distal portion of the tail is white. It is a nocturnal and crepuscular arboreal species that inhabits deciduous and evergreen tropical forests in México, Belize, Guatemala, Honduras, El Salvador, and Nicaragua. Globally, it is listed as “Least Concern” by the International Union for Conservation of Nature.