Article · Wikipedia archive · Last revised Jun 16, 2026

Trinidad spiny rat

The Trinidad spiny rat is a species of rodent in the family Echimyidae. It is found in Trinidad and Tobago and northern Venezuela.

Last revised
Jun 16, 2026
Read time
≈ 2 min
Length
492 w
Citations
11
Source
Trinidad spiny rat
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Placentalia
Order: Rodentia
Family: Echimyidae
Subfamily: Echimyinae
Tribe: Myocastorini
Genus: Proechimys
Species:
P. trinitatis
Binomial name
Proechimys trinitatis

The Trinidad spiny rat (Proechimys trinitatis23) is a species of rodent in the family Echimyidae. It is found in Trinidad and Tobago and northern Venezuela.

Phylogeny

Morphological characters and mitochondrial cytochrome b DNA sequences showed that P. trinitatus belongs to the so-called trinitatus group of Proechimys species, and shares closer phylogenetic affinities with the other members of this clade: P. mincae, P. guairae, P. poliopus, P. magdalenae, P. chrysaeolus, P. urichi, and P. hoplomyoides.4567

Species-level cladogram of the genus Proechimys.
The cladogram has been reconstructed from morphological characters and mitochondrial DNA (cytochrome b) sequences.4567
References

References

  1. Emmons, L. (2016). "Proechimys trinitatis". IUCN Red List of Threatened Species. 2016 e.T18301A22208438. doi:10.2305/IUCN.UK.2016-2.RLTS.T18301A22208438.en. Retrieved 11 November 2022.
  2. "ITIS Standard Report Page: Proechimys trinitatis". www.itis.gov.
  3. Woods, C.A.; Kilpatrick, C.W. (2005). "Species Proechimys trinitatis". 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.
  4. 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.
  5. 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.
  6. Patton, James L.; Da Silva, Maria Nazareth F.; Malcolm, Jay R. (2000-01-25). "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.
  7. 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 978-0-226-16960-6.