Large rodent from South America that might have originated from escapes from a wildlife research facility. Population size, trends, and impact on native species are unknown. Although not reported breeding in the wild, sightings are not uncommon, and a breeding population may exist.
| County | First Year | Extirpated Year | Breeding status | Notes |
| ALACHUA | 2000 | | Not reported breeding | Some animals reportedly escaped from captive herd in 2001 |
| BRADFORD | 1990s | | Not reported breeding | |
| UNION | 1995 | | Not reported breeding | Animal killed on Interstate 10 in 2001 |
| SARASOTA | 2001 | | Not reported breeding | Adult animal killed on State Road 72 just east of the Myakka River bridge (P. Beshoff, FDEP, Myakka River State Park, personal communication) |