Mesomys
Template:Short description Template:Automatic taxobox
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 Template:Wikt-lang (Template:Grc-transl), meaning "middle of, between", and Template:Wikt-lang (Template:Grc-transl), 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]
References
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