Megalomys Trouessart, 1881 . Le Naturaliste, 1:357.

TYPE SPECIES: Mus desmarestii Fischer, 1829 .

SYNONYMS: Moschomys (of Trouessart, 1903), Moschophoromys .

COMMENTS: Named as a subgenus of the all-inclusive Hesperomys but later associated with Oryzomys by Major (1901); typically recognized as an oryzomyine genus endemic to the Lesser Antilles (Ellerman, 1941; Hall, 1981; Tate, 1932c). Closest mainland relative may be the poorly known Oryzomys hammondi of Ecuador (Ray, 1962). Both species are extinct but persisted perhaps until the late 1800s (Ray, 1962; Woods, 1989«).