{"references": ["Handley, C. O., Jr. 1976. Mammals of the Smithsonian Venezuelan Project. Brigham Young University Science Bulletin, Biological Series, 20: 1 - 91.", "Husson, A. M. 1978. The mammals of Suriname. E. J. Brill, Leiden, 569 pp., 160 pls.", "Voss, R. S. 1992. A revision of the South American species of Sigmodon (Mammalia: Muridae) with notes on their natural history and biogeography. American Museum Novitates, 3050: 1 - 56."]}

Sigmodon alstoni (Thomas, 1881). Proc. Zool. Soc. Lond., 1880:691 [1881]. TYPE LOCALITY: Venezuela, Sucre, Cumanâ. DISTRIBUTION: Intermittently distributed in savannas over NE Colombia, N and E Venezuela, Guyana, Surinam, and N Brazil. Range amplified by Handley (1976), Husson (1978), and Voss (1992). SYNONYMS: savannarum, venester.

Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 747, DOI: 10.5281/zenodo.7353098