continue to exist. The Cozumel population has declined substantially since the mid-1980s, perhaps due to habitat disturbance and predation by introduced species. Footnotes References Literature cited Allen, J.A. 1891. Notes on new or little-known North American mammals, based on recent additions to the collection of mammals in the American Museum of Natural History. Bulletin of the American Museum of Natural History 3:263–310. Allen, J.A. 1897. Further notes on mammals collected in Mexico by Dr. Audley C. Buller, with descriptions of new species. Bulletin of the American Museum of Natural History 9:47–57. Allen, J.A. 1910. Additional mammals from Nicaragua. Bulletin of the American Museum of Natural History 28:87–115. Allen, J.A. and Chapman, F.M. 1897. On a collection of mammals from Jalapa and Las Vigas, state of Vera Cruz, Mexico. Bulletin of the American Museum of Natural History 9:197–208. Alston, E.R. 1877 ["1876"]. On two new species of Hesperomys. Proceedings of the Zoological Society of London 1876(4):755–757. Alston, E.R. 1882. Biologia centrali-americana. Mammalia. R.H. Porter, 220 pp. Baker, R.H. 1951. Mammals from Tamaulipas, Mexico. University of Kansas Publications, Museum of Natural History 5:207–215. Barnard, W.P., Ernst, J.V. and Stevens, R.O. 1971. Eimeria palustris sp. n. and Isospora hammondi sp. n. (Coccidia: Eimeriidae) from the marsh rice rat, Oryzomys palustris (Harlan). The Journal of Parasitology 57(6):1293–1296. Benson, D.E. and Gehlbach, F.R. 1979. Ecological and taxonomic notes on the rice rat (Oryzomys couesi) in Texas. Journal of Mammalogy 60(1):225–228. Bole, B.J. Jr. 1937. Annotated list of the mammals of the Mariato River District of the Azuero Peninsula. Scientific Publications of the Cleveland Museum of Natural History 7:140–196. Burt, W.H. 1934. A new rice rat (Oryzomys) from Sonora, Mexico. Proceedings of the Biological Society of Washington 47:107–108. Burt, W.H. and Stirton, R.A. 1961. The mammals of El Salvador. Miscellaneous Publications of the Museum of Zoology, University of Michigan 117:1–69. Cameron, G.N. and Scheel, D. Getting warmer: Effect of global climate change on distribution of rodents in Texas. Journal of Mammalogy 82(3):652–680. Carleton, M.D. and Arroyo-Cabrales, J. 2009. Review of the Oryzomys couesi complex (Rodentia: Cricetidae: Sigmodontinae) in Western Mexico. Bulletin of the American Museum of Natural History 331:94–127. Carleton, M.D. and Musser, G.G. 1984. Muroid rodents. pp. 289–379 in Anderson. S. and Jones, J.K. Jr. (eds.). Orders and families of Recent mammals of the world. John Wiley and Sons, New York, 686 pp. Chu, Y.-K., Owen, R.D., Sánchez-Hernández, C., Romero-Almarez, M. de L. and Jonsson,