Goeldi's spiny-rat (''Proechimys goeldii'') 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 ...

Phylogeny

Morphological characters and mitochondrial cytochrome b DNA sequences showed that ''P. goeldii'' belongs to the so-called ''goeldii'' group of ''Proechimys'' species, and shares closer phylogenetic affinities with the other members of this clade: '' P. steerei'' and '' P. quadruplicatus''.

References

Proechimys Mammals described in 1905 Taxa named by Oldfield Thomas {{Echimyidae-stub