Gray leaf-eared mouse

{{Short description|Species of rodent}}

{{Speciesbox

| image = Mus griseo-flavus (BM 1931,0213.1351).jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Pardinas, U. |author2=D'Elia, G. |author3=Jayat, J.P. |author4=Teta, P. |date=2016 |title=Graomys griseoflavus |volume=2016 |page=e.T9467A22368422 |doi=10.2305/IUCN.UK.2016-2.RLTS.T9467A22368422.en |access-date=12 November 2021}}

| genus = Graomys

| species = griseoflavus

| authority = Waterhouse, 1837

| synonyms = Mus griseo-flavus
Phyllotis griseo-flavus

| synonyms_ref = Tate, G. H. H. [http://digitallibrary.amnh.org/bitstream/handle/2246/4225/N0541.pdf?sequence=1 The taxonomic history of the South American cricetid genera Euneomys (subgenera Euneomys and Galenomys), Auliscomys, Chelemyscus, Chinchillula, Phyllotis, Paralomys, Graomys, Eligmodontia and Hesperomys.] American Museum Novitates No. 541. 16 June 1932. Page 5

}}

The gray leaf-eared mouse (Graomys griseoflavus) is a rodent species from South America. It is found in Argentina, Bolivia, Brazil and Paraguay; its habitat includes the Gran Chaco.

This is a variable and widely distributed species that can be found in many habitat types. It is considered to be a species complex, and some populations might be considered separate species.Theiler, G. R. and A. Blanco. [https://academic.oup.com/jmammal/article/77/3/776/944287 Patterns of evolution in Graomys griseoflavus (Rodentia: Muridae): II. Reproductive isolation between cytotypes.] Journal of Mammalogy 77:3, August 1996.

Ramirez, P. B., et al. [https://academic.oup.com/jmammal/article/82/1/102/2372736 Geographic variation in genome size of Graomys griseoflavus (Rodentia: Muridae).] Journal of Mammalogy 82:1, February 2001. Genus Graomys contains species once considered to be part of the complex.Ferro, L. I. and J. J. Martínez. [https://www.researchgate.net/publication/240754390_Molecular_and_morphometric_evidence_validates_a_Chacoan_species_of_the_grey_leaf-eared_mice_genus_Graomys_Rodentia_Cricetidae_Sigmodontinae Molecular and morphometric evidence validates a Chacoan species of the grey leaf-eared mice genus Graomys (Rodentia: Cricetidae: Sigmodontinae).] Mammalia 73:3 265-71. September 2009.