Oryzomys hammondi (Thomas, 1913) . Ann. Mag. Nat. Hist., ser. 8, 12:570.

TYPE LOCALITY: Ecuador, Pichincha Prov., Mindo, 4213 ft .

DISTRIBUTION: NW Ecuador.

COMMENTS: Described as a species of Nectomys and included therein as incertae sedis by Hershkovitz (1944). Later designated as the type species of Macruroryzomys, subgenus Oryzomys, by Hershkovitz (1948b), who afterwards (1970b) acknowledged the taxon as a nomen nudum (also see Pine and Wetzel, 1975:653). Distributional limits poorly definded and affinities obscure, perhaps related to the extirpated Antillean form Megalomys (Ray, 1962) .