The Guyenne spiny-rat (Proechimys guyannensis) or Cayenne spiny rat, is a spiny rat species found in Brazil, Colombia, French Guiana, Guyana, Suriname and Venezuela.
Phylogeny
Morphological characters and mitochondrial cytochrome b DNA sequences showed that P. guyannensis belongs to the so-called guyannensis group of Proechimys species, and shares closer phylogenetic affinities with the other member of this clade: P. roberti.
| Species-level cladogram of the genus Proechimys. |
| Myocastorini |
| Hoplomys |
Hoplomys gymnurus
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| Proechimys |
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Proechimys canicollis (Colombian spiny rat)
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Proechimys decumanus (Pacific spiny rat)
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Proechimys echinothrix (Stiff-spine spiny rat)
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Proechimys simonsi (Simon's spiny rat)
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| group gardneri |
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Proechimys kulinae (Kulina spiny rat)
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Proechimys gardneri (Gardner's spiny rat)
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Proechimys pattoni (Patton's spiny rat)
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| group semispinosus |
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| group semispinosus |
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Proechimys boimensis
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Proechimys guyannensis (Guyenne spiny rat)
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Proechimys oris
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Proechimys roberti (Roberto's spiny rat)
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| group semispinosus |
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Proechimys cuvieri (Cuvier's spiny rat)
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| group semispinosus |
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Proechimys amphichoricus
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Proechimys goeldii (Goeldi's spiny rat)
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Proechimys hyleae
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Proechimys quadruplicatus (Napo spiny rat)
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Proechimys steerei (Steere's spiny rat)
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| group semispinosus |
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Proechimys chrysaeolus (Boyacá spiny rat)
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Proechimys guairae (Guaira spiny rat)
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Proechimys hoplomyoides (Guyanan spiny rat)
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Proechimys magdalenae (Magdalena spiny rat)
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Proechimys mincae (Minca spiny rat)
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Proechimys poliopus (Gray-footed spiny rat)
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Proechimys trinitatus (Trinidad spiny rat)
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Proechimys urichi (Sucre spiny rat)
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| The cladogram has been reconstructed from morphological characters and mitochondrial DNA (cytochrome b) sequences. |
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