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Guyenne spiny-rat
The animal kingdom, arranged according to its organization, serving as a foundation for the natural history of animals - and an introduction to comparative anatomy (Vol. 1) (1834) (18197923381) (cropped3).jpg
Conservation status
Scientific classification
Genus:
Proechimys
Species:
guyannensis
Subspecies

P. g. arabupu Moojen, 1948
P. g. arescens Osgood, 1944
P. g. cherriei Thomas, 1899
P. g. guyannensis (É. Geoffroy, 1803)
P. g. riparum Moojen, 1948
P. g. vacillator Thomas, 1903
Synonyms

P. cayennensis Desmarest, 1817
P. warreni Thomas, 1905

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

  Proechimys  

  Proechimys canicollis (Colombian spiny rat)


  Proechimys decumanus (Pacific spiny rat)


  Proechimys echinothrix (Stiff-spine spiny rat)


  Proechimys simonsi (Simon's spiny rat)

  group gardneri  

  Proechimys kulinae (Kulina spiny rat)



  Proechimys gardneri (Gardner's spiny rat)


  Proechimys pattoni (Patton's spiny rat)



  group semispinosus  

  Proechimys gorgonae


  Proechimys oconnelli (O'Connell's spiny rat)


  Proechimys semispinosus (Tome's spiny rat)


  group semispinosus  

  Proechimys boimensis


  Proechimys guyannensis (Guyenne spiny rat)


  Proechimys oris


  Proechimys roberti (Roberto's spiny rat)


  group semispinosus  

  Proechimys cuvieri (Cuvier's spiny rat)



  Proechimys brevicauda (Short-tailed spiny rat)


  Proechimys gularis


  Proechimys longicaudatus (Long-tailed spiny rat)



  group semispinosus  

  Proechimys amphichoricus


  Proechimys goeldii (Goeldi's spiny rat)


  Proechimys hyleae


  Proechimys quadruplicatus (Napo spiny rat)


  Proechimys steerei (Steere's spiny rat)


  group semispinosus  

  Proechimys chrysaeolus (Boyacá spiny rat)


  Proechimys guairae (Guaira spiny rat)


  Proechimys hoplomyoides (Guyanan spiny rat)


  Proechimys magdalenae (Magdalena spiny rat)


  Proechimys mincae (Minca spiny rat)


  Proechimys poliopus (Gray-footed spiny rat)


  Proechimys trinitatus (Trinidad spiny rat)


  Proechimys urichi (Sucre spiny rat)




The cladogram has been reconstructed from morphological characters and mitochondrial DNA (cytochrome b) sequences.
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Guyenne spiny rat Facts for Kids. Kiddle Encyclopedia.