Hairy Atlantic spiny rat
| Hairy Atlantic spiny rat | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Echimyidae |
| Subfamily: | Euryzygomatomyinae |
| Genus: | Trinomys |
| Species: | T. setosus
|
| Binomial name | |
| Trinomys setosus (Desmarest, 1817)
| |
| Subspecies | |
|
T. s. denigratus (Moojen, 1948) | |
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| |
| Synonyms | |
|
Proechimys setosus | |
The hairy Atlantic spiny rat (Trinomys setosus) is a spiny rat species from South America.[2]
Taxonomy
[edit]Anselme Gaëtan Desmarest described it in 1817 as Proechimys setosus. It was moved to Trinomys by Lara and Patton in 2000.[1]
Description
[edit]It is a medium-large rat, with a head and body length averaging 204 millimetres (8.0 in) and a 209 millimetres (8.2 in) tail. The fur on the back is "brownish-olive to cinnamon", gradually paling to white on the stomach. The tail has a brown base and white tip, with a tuft of hair at the end.[3]
They have 56 pairs of chromosomes.[4] A 2022 genetic analysis found that within Trinomys, T. setosus is most closely related to T. yonengae, and they may have separated approximately 8 million years ago.[5]
The species is endemic to Brazil, and can be found in Sergipe, Bahia, Minas Gerais, Espírito Santo, and Rio de Janeiro.[3] Its habitat includes forest and savanna.[1] It is likely nocturnal.[6]
The IUCN list T. setosus as a species of least concern due to its wide distribution and local abundance.[1]
References
[edit]- ^ a b c d Bonvicino, C.R.; Catzeflis, F. (2016). "Trinomys setosus". IUCN Red List of Threatened Species. 2016: e.T18298A22212292. doi:10.2305/IUCN.UK.2016-2.RLTS.T18298A22212292.en. Retrieved 13 November 2021.
- ^ Woods, C.A.; Kilpatrick, C.W. (2005). "Species Trinomys setosus". 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.
- ^ a b Patton, James L.; Pardiñas, Ulyses F. J.; D’Elía, Guillermo (2015). Mammals of South America, Volume 2: Rodents. University of Chicago Press. doi:10.7208/chicago/9780226169606.001.0001. ISBN 978-0-226-16957-6.
- ^ Araújo, Naiara Pereira; Dias, Cayo Augusto Rocha; Stumpp, Rodolfo; Svartman, Marta (2018-07-31). "Cytogenetic analyses in Trinomys (Echimyidae, Rodentia), with description of new karyotypes". PeerJ. 6: e5316. doi:10.7717/peerj.5316. ISSN 2167-8359. PMC 6074804. PMID 30083457.
- ^ Nacif, Camila Leitão; Bastos, Diogo Lisbôa; Mello, Beatriz; Lazar, Ana; Hingst-Zaher, Erika; Geise, Lena; Bonvicino, Cibele Rodrigues (2023-05-05). "Hidden diversity of the genus Trinomys (Rodentia: Echimyidae): phylogenetic and populational structure analyses uncover putative new lineages". Zoological Journal of the Linnean Society. 198 (1): 113–130. doi:10.1093/zoolinnean/zlac073. ISSN 0024-4082.
- ^ Fabio-Braga, Ana Paula; Klein, Wilfried (2018-03-09). "Temperature and circadian effects on metabolic rate of South American echimyid rodents, Trinomys setosus and Clyomys bishopi (Rodentia: Echimyidae)". Zoologia. 35: 1–6. doi:10.3897/zoologia.35.e24572. ISSN 1984-4689.