Biology:Mesomys

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

Mesomys
Temporal range: Recent
Mesomys hispidus female.jpg
Ferreira's spiny tree-rat
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Echimyidae
Subfamily: Echimyinae
Tribe: Echimyini
Genus: Mesomys
Wagner, 1845
Type species
Mesomys ecaudatus
Species

Mesomys hispidus
Mesomys leniceps
Mesomys occultus
Mesomys stimulax

EchimysFerrugineusMintern.jpg

Mesomys is a genus of South American spiny rats in the family Echimyidae.[1]

The genus name Mesomys derives from the two ancient greek words μέσος (mésos), meaning "middle of, between", and μῦς (mûs), meaning "mouse, rat".[2][3] It refers to the fact that these rodents — literally the "middle mouse" — were considered an intermediate form between the genus Loncheres and the genus Echinomys, both of which are now known to be synonyms of Echimys.[4][5]

Extant Species

Image Scientific name Common Name Distribution
Mesomys hispidus Ferreira's spiny tree-rat Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela
Mesomys leniceps Woolly-headed spiny tree-rat Peru
Mesomys occultus Tufted-tailed spiny tree-rat Brazil
Mesomys stimulax Pará spiny tree-rat Brazil.

Phylogeny

Mesomys is a member of the Echimyini clade of arboreal Echimyidae rodents.[6] The closest relative of Mesomys is Lonchothrix, reflecting the fact that these taxa have once been classified in the Eumysopinae,[1] a subfamily now recognized as an artificial assemblage.[7] These two genera share phylogenetic affinities with several taxa and clades: (i) Echimys, Phyllomys, Makalata, Pattonomys, and Toromys ; (ii) the bamboo rats Dactylomys, Olallamys, Kannabateomys together with Diplomys and Santamartamys ; and (iii) Isothrix.[8]

Genus-level cladogram of the Echimyini.

References

  1. 1.0 1.1 Woods, C.A.; Kilpatrick, C.W. (2005). "Genus Mesomys". in Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 1583–1584. ISBN 978-0-8018-8221-0. OCLC 62265494. http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13400472. 
  2. Bailly, Anatole (1981-01-01). Abrégé du dictionnaire grec français. Paris: Hachette. ISBN 978-2010035289. OCLC 461974285. 
  3. Bailly, Anatole. "Greek-french dictionary online". http://www.tabularium.be/bailly/. 
  4. Wagner, Johann Andreas (1845). "Diagnosen einiger neuen Arten von Nagern und Handflüglern". Archiv für Naturgeschichte 11 (1): 145. https://www.biodiversitylibrary.org/item/30279#page/153/mode/1up. 
  5. Palmer, T. S. (1904) (in en). Details - Index generum mammalium: a list of the genera and families of mammals. - Biodiversity Heritage Library. Washington, Govt. Print. Off.. pp. 415. doi:10.5962/bhl.title.39809. https://archive.org/details/indexgenerummamm23palm/page/n422/mode/1up. 
  6. Fabre, Pierre-Henri; Patton, James L.; Leite, Yuri L. R. (2016). "Family Echimyidae (hutias, South American spiny-rats and coypu)". Handbook of the Mammals of the World. Vol 6. Lagomorphs and Rodents I. Barcelona: Lynx Edicions. pp. 552–641. ISBN 978-84-941892-3-4. 
  7. Fabre, Pierre-Henri; Galewski, Thomas; Tilak, Marie-ka; Douzery, Emmanuel J. P. (2013-03-01). "Diversification of South American spiny rats (Echimyidae): a multigene phylogenetic approach" (in en). Zoologica Scripta 42 (2): 117–134. doi:10.1111/j.1463-6409.2012.00572.x. ISSN 1463-6409. 
  8. Fabre, Pierre-Henri; Upham, Nathan S.; Emmons, Louise H.; Justy, Fabienne; Leite, Yuri L. R.; Loss, Ana Carolina; Orlando, Ludovic; Tilak, Marie-Ka et al. (2017-03-01). "Mitogenomic Phylogeny, Diversification, and Biogeography of South American Spiny Rats". Molecular Biology and Evolution 34 (3): 613–633. doi:10.1093/molbev/msw261. ISSN 0737-4038. PMID 28025278. 

Wikidata ☰ Q911378 entry