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| Megalomys audreyae Temporal range: Quaternary
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| Holotype mandible (lower jaw) of Megalomys audreyae, seen from the right (lingual view) above and from the left (labial view) below.[1] | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | †Megalomys |
| Species: | †M. audreyae
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| Binomial name | |
| †Megalomys audreyae Hopwood, 1926[2]
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| Synonyms | |
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Megalomys audreyae, known as the Barbudan (?) muskrat[3] or the Barbuda giant rice rat,[4] is an extinct oryzomyine rodent from Barbuda in the Lesser Antilles. Described on the basis of a single mandible (lower jaw) with the first molar missing and an isolated upper incisor, both of uncertain but Quaternary age, it is one of the smaller members of the genus Megalomys. Little is known about the animal, and its provenance and distinction from "Ekbletomys hypenemus", an even larger extinct oryzomyine that also occurred on Barbuda, have been called into question. The toothrow in the lower jaw has a length of 8.7 mm at the alveoli. The third molar is relatively narrow and both the second and third molars have a wide valley between their outer cusps.
- ^ Cite error: The named reference
RplXIVwas invoked but never defined (see the help page). - ^ Hopwood, A.T. 1926. A fossil rice-rat from the Pleistocene of Barbuda. Annals and Magazine of Natural History (9)17:328–330.
- ^ Ray, C.E. 1962. The Oryzomyine Rodents of the Antillean Subregion. Doctor of Philosophy thesis, Harvard University, 211 pp.
- ^ MacPhee and Flemming, 1999, table 2