Tate's fat-tailed mouse opossum (Thylamys tatei) is a species of opossum in the family Didelphidae, named after American zoologist George Henry Hamilton Tate

George Henry Hamilton Tate

George Henry Hamilton Tate was an English-born American zoologist, who worked as a mammalogist for the American Museum of Natural History in New York....

. It is found at elevations of 300 to 3,000 m along the coast of central Peru

Peru

Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

. The species has the northernmost range of any member of its genus. It has white ventral fur and short condylobasal and zygomatic

Zygomatic bone

The zygomatic bone is a paired bone of the human skull. It articulates with the maxilla, the temporal bone, the sphenoid bone and the frontal bone. The zygomatic is homologous to the jugal bone of other tetrapods...

 lengths. T. pallidor

White-bellied Fat-tailed Mouse Opossum

The White-bellied Fat-tailed Mouse Opossum is a species of opossum in the family Didelphidae. It is found in Argentina, Bolivia, Chile and Peru.-Description:...

is very similar.