Karimi's fat-tailed mouse opossum

{{Short description|Species of marsupial}}

{{Speciesbox

| name = Karimi's fat-tailed mouse opossum

| image =

| status = VU

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Carmignotto, A.P. |author2=Costa, L.P. |author3=Astúa, D. |date=2021 |title=Thylamys karimii |volume=2021 |page=e.T136653A197308408 |doi=10.2305/IUCN.UK.2021-1.RLTS.T136653A197308408.en |access-date=19 November 2021}}

| genus = Thylamys

| species = karimii

| authority = Petter, 1968

| synonyms =

| range_map = Karimi's Fat-tailed Mouse Opossum area.png

| range_map_caption = Karimi's fat-tailed mouse opossum range

}}

Karimi's fat-tailed mouse opossum (Thylamys karimii) is a species of opossum in the family Didelphidae.{{MSW3 Didelphimorphia | id = 10400164 | page = 17}} It is endemic to central and northeast Brazil, where it is found in the cerrado and caatinga at elevations from 300 to 1100 m. This opossum is crepuscular and mostly terrestrial; its omnivorous diet includes leaves, insects and small vertebrates. Its head-and-body length is about 95 millimeters, and its tail length is about 72 millimeters. It is very similar to T. pallidor. Its tail may be nonprehensile.{{Cite book

| last = Eisenberg | first = John Frederick

|author2=Redford, Kent Hubbard

| title = Mammals of the Neotropics: The Central Neotropics: Ecuador, Peru, Bolivia, Brazil

| publisher = University of Chicago Press | year = 1999 | pages = 624 (see p. 75)

| url = http://google.com/books?id=p2MDAzCeQQoC&pg=PA75

| isbn = 978-0-226-19542-1}} The species is named after Iranian epidemiologist Y. Karimi.{{Cite book

| last = Beolens | first = Bo |author2=Watkins, Michael |author3=Grayson, Michael

| title = The Eponym Dictionary of Mammals

| publisher = The Johns Hopkins University Press

| date = 2009-09-28 | location = Baltimore | pages = 219–20

| url = http://google.com/books?id=I-kSmWLc6vYC&pg=PA219

| isbn = 978-0-8018-9304-9| oclc = 270129903}} It is threatened by habitat destruction and fragmentation due to agriculture and ranching.