Canariomys

Canariomys is an extinct genus of rodents that once existed on the islands of Tenerife and Gran Canaria, part of the Canary Islands, Spain. These giant rats could reach a weight of about 1 kg. The species was a herbivore; its diet was based on plant materials, probably soft vegetables as some roots, ferns, and berries.

Two species are currently recognized:
 * Tenerife giant rat
 * Gran Canaria giant rat