Sinnamary brush-tailed rat

{{Short description|Species of rodent}}

{{Speciesbox

| name = Sinnamary brush-tailed rat

| image =

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Catzeflis, F. |author2=Patton, J. |date=2016 |title=Isothrix sinnamariensis |volume=2016 |page=e.T41786A22211171 |doi=10.2305/IUCN.UK.2016-2.RLTS.T41786A22211171.en |access-date=12 November 2021}}

| display_parents = 3

| genus = Isothrix

| species = sinnamariensis

| authority = Vié, Volobouev, Patton & Granjon, 1996

| synonyms =

}}

The Sinnamary brush-tailed rat (Isothrix sinnamariensis), is a species of rodent in the family of Echimyidae.{{Cite journal|last1=Vié|first1=Jean-Christophe|last2=Volobouev|first2=Vitaly|last3=Patton|first3=James L.|author-link3=James L. Patton|last4=Granjon|first4=Laurent|year=1996|title=A new species of Isothrix (Rodentia: Echimyidae) from French Guiana|journal=Mammalia|volume=60|pages=393–406|doi=10.1515/mamm-1996-0305|s2cid=87155336}} It is found in French Guiana, Guyana, and possibly Suriname. Its natural habitat is subtropical or tropical moist lowland forests.