Heteromys

Heteromys is a genus of rodents in the family Heteromyidae, commonly known as spiny pocket mice. It is the only extant genus in the subfamily Heteromyinae which also includes the extinct genera Diprionomys and Metaliomys. Heteromys was recently enlarged by inclusion of the members of formerly recognized heteromyine genus Liomys, which was found to be paraphyletic.

==Distribution== Heteromyines are distributed from southern Texas to Ecuador and Venezuela, and include all but one of the castorimorph species of South America. Like all of South America's other non-caviomorph rodents, they arrived in the continent relatively recently as part of the Great American Interchange. They inhabit mainly forests; some are also found in scrubland.