Guyenne spiny rat

The Guyenne spiny-rat (Proechimys guyannensis) or Cayenne spiny rat, is a spiny rat species^[2] found in Brazil, Colombia, French Guiana, Guyana, Suriname and Venezuela.

Guyenne spiny-rat
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Echimyidae
Subfamily:	Echimyinae
Tribe:	Myocastorini
Genus:	Proechimys
Species:	P. guyannensis
Binomial name
Proechimys guyannensis (É. Geoffroy, 1803)
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

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.^[3][4][5]

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 guyannensis     Proechimys boimensis   Proechimys guyannensis (Guyenne spiny rat)   Proechimys oris   Proechimys roberti (Roberto's spiny rat)   group longicaudatus     Proechimys cuvieri (Cuvier's spiny rat)   Proechimys brevicauda (Short-tailed spiny rat)   Proechimys gularis   Proechimys longicaudatus (Long-tailed spiny rat)   group goeldii     Proechimys amphichoricus   Proechimys goeldii (Goeldi's spiny rat)   Proechimys hyleae   Proechimys quadruplicatus (Napo spiny rat)   Proechimys steerei (Steere's spiny rat)   group trinitatus     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.[3][4][6][5]

References

1. Catzeflis, F.; Patton, J. (2016). "Proechimys guyannensis". IUCN Red List of Threatened Species. 2016: e.T18277A22209103. doi:10.2305/IUCN.UK.2016-2.RLTS.T18277A22209103.en. Retrieved 13 November 2021.
2. Woods, C.A.; Kilpatrick, C.W. (2005). "Species Proechimys guyannensis". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 1538–1600. ISBN 978-0-8018-8221-0. OCLC 62265494.
3. Patton, James L. (1987). "Species groups of spiny rats, genus Proechimys (Rodentia: Echimyidae)". Fieldiana: Zoology, Studies in Neotropical Mammalogy: Essays in Honor of Philip Hershkovitz. 39: 305–345. ISSN 0015-0754.
4. Da Silva, Maria Nazareth F. (1998). "Four New species of spiny rats of the genus Proechimys (Rodentia : Echimyidae) from the Western Amazon of Brazil". Proceedings of the Biological Society of Washington. 111: 436–471. ISSN 0006-324X.
5. Patton, James L.; Leite, Rafael N. (2015-03-09). "Genus Proechimys J. A. Allen, 1899". In Patton, James L.; Pardiñas, Ulyses F. J.; D’Elía, Guillermo (eds.). Mammals of South America, Volume 2: Rodents. University of Chicago Press. pp. 950–989. ISBN 9780226169606.
6. Patton, James L.; Da Silva, Maria Nazareth F.; Malcolm, Jay R. (2000-01-01). "Mammals of the Rio Juruá and the evolutionary and ecological diversification of Amazonia". Bulletin of the American Museum of Natural History. 244: 1–306. doi:10.1206/0003-0090(2000)244<0001:MOTRJA>2.0.CO;2. ISSN 0003-0090.