Hypogeomys

Hypogeomys is a genus of rodents in the family Nesomyidae, found in Madagascar. There is one extant species, the Malagasy giant rat (Hypogeomys antimena), currently an endangered species with a restricted range. There is also another species known from subfossils from a few thousand years ago, Hypogeomys australis. H. antinema measures 33 centimetres (13 in), making it the largest rodent in Madagascar, while H. australis seems to have been slightly larger.^[1]

Hypogeomys Temporal range: Early Pleistocene - Recent
Malagasy giant rat (Hypogeomys antimena)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Nesomyidae
Subfamily:	Nesomyinae
Genus:	Hypogeomys A. Grandidier, 1869

References

1. Goodman, S.M. and Rakotondravony, D. 1996. The Holocene distribution of Hypogeomys (Rodentia: Muridae: Nesomyinae) on Madagascar. Archived 2011-07-22 at the Wayback Machine Biogéographie de Madagascar 1996:283–293.