Oryzomys alfaroi J. A. Allen 1891

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 955-1189 : 1145

Oryzomys alfaroi J. A. Allen 1891

Oryzomys alfaroi J. A. Allen 1891 , Bull. Am. Mus . Nat. Hist., 3: 214.

Type Locality: Costa Rica, Alajuela Prov., San Carlos.

Vernacular Names: Alfaro's Oryzomys.

Synonyms: Oryzomys agrestis Goodwin 1959 ; Oryzomys dariensis Goldman 1915 ; Oryzomys gloriaensis Goodwin 1956 ; Oryzomys gracilis Thomas 1894 ; Oryzomys incertus J. A. Allen 1908 ; Oryzomys intagensis Hershkovitz 1940 ; Oryzomys palatinus Merriam 1901 ; Oryzomys palmirae J. A. Allen 1912 .

Distribution: Lowland to lower montane forests from S Tamaulipas and Oaxaca, México, through Middle America, to W Colombia and Ecuador.

Conservation: IUCN – Lower Risk (lc).

Discussion: Goldman (1918) forged a broad definition of the species, expanded more so by Hall and Kelson (1959), that encompassed many forms previously treated as distinct (e.g., Merriam, 1901a). We recognize chapmani, rhabdops, and saturatior as species (revision in progress). Oryzomys alfaroi proper may be more closely related to melanotis-rostratus than to the chapmani-saturatior group. Karyotype reported by Haiduk et al. (1979) and Engstrom (1984).