Hypogeomys
| 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 | 
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.