The Guyanan spiny-rat (''Proechimys hoplomyoides'') is a spiny rat species found in

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

Guyana Guyana, officially the Co-operative Republic of Guyana, is a country on the northern coast of South America, part of the historic British West Indies. entry "Guyana" Georgetown, Guyana, Georgetown is the capital of Guyana and is also the co ...

and

Venezuela Venezuela, officially the Bolivarian Republic of Venezuela, is a country on the northern coast of South America, consisting of a continental landmass and many Federal Dependencies of Venezuela, islands and islets in the Caribbean Sea. It com ...

. The species was first described by

George Henry Hamilton Tate George Henry Hamilton Tate (April 30, 1894 – December 24, 1953) was a British-born American zoologist and botanist, who worked as a mammalogist for the American Museum of Natural History in New York City. In his lifetime he wrote several book ...

in 1939.

Phylogeny

Morphological characters and mitochondrial cytochrome b DNA sequences showed that ''P. hoplomyoides'' belongs to the so-called ''trinitatus'' group of species of ''Proechimys'', and shares closer phylogenetic affinities with the other members of this clade: '' P. trinitatus'', '' P. mincae'', '' P. guairae'', '' P. poliopus'', '' P. magdalenae'', '' P. chrysaeolus'', and '' P. urichi''.

References

Proechimys Guayana Highlands Rodents of Brazil Mammals of Guyana Mammals of Venezuela Mammals described in 1939 Taxa named by George Henry Hamilton Tate {{Echimyidae-stub