Guyanan spiny-rat
The Guyanan spiny-rat (Proechimys hoplomyoides) is a spiny rat species found in Brazil, Guyana and Venezuela. The species was first described by George Henry Hamilton Tate 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 Rodents of South America Guayana Highlands Mammals of Brazil Mammals of Guyana Mammals of Venezuela Mammals described in 1939 Taxa named by George Henry Hamilton Tate