{"references": ["Ellerman, J. R. 1941. The families and genera of living rodents. Vol. II. Family Muridae. British Museum (Natural History), London, 690 pp.", "Osgood, W. H. 1933 a. The South American mice referred to Microryzomys and Thallomyscus. Field Museum of Natural History, Zoological Series, 20: 1 - 8.", "Gyldenstolpe, N. 1932. A manual of Neotropical sigmodont rodents. Kungliga Svenska Vetenskapsakademiens Handlingar, Tredje Serien, 11: 1 - 164.", "Tate, G. H. H. 1932 e. The taxonomic history of the South and Central American cricetid rodents of the genus Oryzomys. Part 2: Subgenera Oligoryzomys, Thallomyscus, and Melanomys. American Museum Novitates, 580: 1 - 16.", "Thomas, O. 1926 c. The Godman-Thomas expedition to Peru. II. On mammals collected by Mr. Hendee in north Peru between Pacasmayo and Chachapoyas. Annals and Magazine of Natural History, ser. 9, 17: 610 - 616.", "Carleton, M. D., and G. G. Musser. 1984. Muroid rodents. Pp. 289 - 379, in Orders and families of Recent mammals of the world (S. Anderson and J. K. Jones, Jr., eds.). John Wiley and Sons, New York, 686 pp."]}

Microryzomys Thomas, 1917. Smithson. Mise. Coll., 68:1. TYPE SPECIES: Hesperomys minutus Tomes, 1860. SYNONYMS: Thallomyscus. COMMENTS: Oryzomyine. Named as a subgenus of Oryzomys and either retained as such (Cabrera, 1961; Ellerman, 1941; Osgood, 1933a) or placed in synonymy with Oligoryzomys (Gyldenstolpe, 1932; Tate, 1932e; Thomas, 1926c). Junior synonymy of Thallomyscus established by Osgood (1933a). Raised to genus by Carleton and Musser (1984) and later revised by them (1989).

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 708, DOI: 10.5281/zenodo.7353098