The Rio Negro brush-tailed rat or dark brush-tailed tree rat (''Isothrix negrensis''), is a
spiny rat species found in
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
.
References
Isothrix
Mammals described in 1920
Taxa named by Oldfield Thomas
{{Echimyidae-stub