The white-faced spiny tree-rat (''Echimys chrysurus'') is a
spiny rat species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
from
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the sout ...
.
It is 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 ...
,
French Guiana
French Guiana ( or ; french: link=no, Guyane ; gcr, label=French Guianese Creole, Lagwiyann ) is an overseas department/region and single territorial collectivity of France on the northern Atlantic coast of South America in the Guianas. ...
,
Guyana and
Suriname.
The etymology of the species name derives from the two
ancient greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...
words (), ''gold'', and (), ''animal tail''.
The main diagnostic
character state of this ''
Echimys'' species is the presence of a dorsal white median stripe on the head. As compared to ''
Echimys vieirai'' and ''
Echimys saturnus'', ''E. chrysurus'' also possesses a brighter dorsum.
References
Echimys
Mammals described in 1780
Taxa named by Eberhard August Wilhelm von Zimmermann
{{Echimyidae-stub