Biology:Giant tree-rat

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Short description: Species of mammals belonging to the spiny rat family of rodents

Giant tree-rat
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Superfamily: Octodontoidea
Family: Echimyidae
Subfamily: Echimyinae
Tribe: Echimyini
Genus: Toromys
Iack-Ximenes, De Vivo, & Percequillo, 2005
Species:
T. grandis
Binomial name
Toromys grandis
(Wagner, 1845)
Synonyms

Loncheres grandis Wagner, 1845
Echimys grandis (Wagner, 1845)
Makalata grandis (Wagner, 1845)

The giant tree-rat (Toromys grandis) is a species in the family Echimyidae, the spiny rats. It is the only species in the monotypic genus Toromys. It is endemic to Brazil , where it occurs in the flooded forest along the banks of the Amazon River and its tributaries.[1]

This species was formerly considered to be a member of the genera Loncheres and Makalata. In 2005 it was reclassified as the only member of the new genus Toromys.[2]

The etymology of the genus name derives from the onomatopoeic Portuguese word toró, referring to the vocalizations of this rodent, and the ancient greek word μῦς (mûs), meaning "mouse, rat".[3][4]

Phylogeny

Toromys is the sister genus to Pattonomys. These taxa are closely related to Echimys, Phyllomys, and Makalata, reflecting the fact that Toromys grandis and Pattonomys occasius have formerly been placed in Makalata by some authorities.[5] In turn, these five genera share phylogenetic affinities with a clade containing the bamboo rats Dactylomys, Olallamys, Kannabateomys together with Diplomys and Santamartamys.[6]

Genus-level cladogram of the Echimyini.

References

  1. 1.0 1.1 Percequillo, A. & Patton, J. 2008. Toromys grandis. The IUCN Red List of Threatened Species 2008. Downloaded on 11 January 2016.
  2. Iack-Ximenes, De Vivo & Percequillo 2005. A new genus for Loncheres grandis Wagner, 1845, with taxonomic comments on other arboreal echimyids (Rodentia, Echimyidae). Arquivos do Museu Nacional (Rio de Janeiro), 63(1), 89-112.
  3. Bailly, Anatole (1981-01-01). Abrégé du dictionnaire grec français. Paris: Hachette. ISBN 978-2010035289. OCLC 461974285. 
  4. Bailly, Anatole. "Greek-french dictionary online". http://www.tabularium.be/bailly/. 
  5. Woods, C.A.; Kilpatrick, C.W. (2005). "Species Makalata grandis". in Wilson, D.E.; Reeder, D.M. 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. http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13400442. 
  6. Cite error: Invalid <ref> tag; no text was provided for refs named Fabre2017

Wikidata ☰ Q302748 entry