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NATURAL HISTORY · CATALOGUE RECORD

Mountain Degu

Octodontomys gliroides (Gervais & d'Orbigny, 1844)

Source-backed taxonomic record

Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Mountain Degu (Octodontomys gliroides) in Argentina

Mountain Degu (Octodontomys gliroides) in Argentina

Ben Costamagna · CC BY 4.0 · Image source

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Open encyclopedia reference

The mountain degu (Octodontomys gliroides), also known as the Andean degu, is a species of rodent in the family Octodontidae. It is the only species in the genus Octodontomys. It is a medium-sized rodent with long, silky grey-brown fur, large grey ears, and white-furred chin and underparts. It is found in the foothills of the Andes in Argentina, Bolivia and Chile, and closely resembles the mountain viscacha rat and viscacha rats in the genus Tympanoctomys, all of which are found in Argentina. It is an herbivore, and eats grasses, leaves, bark, and cacti. The mountain degu gets most of its water from eating the tissues of prickly pear cactuses and cactuses in the genus Cereus. The mountain degu is a social animal, though not as much as the related common degu, and lives in family units of two to four individuals that share a burrow, play together, and take dust baths in turn with each other. Mountain degus have no special ability to dig with their claws, and their burrows are often short.

Wikipedia contributors, Mountain degu; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T03:07:19.471692+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Octodontomys gliroides (Gervais & d'Orbigny, 1844)
Name authority
(Gervais & d'Orbigny, 1844)
Common name
Mountain Degu
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Octodontidae
Genus
Octodontomys
Extinction status
Recorded extant

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. megaclassTetrapoda
  8. classMammalia Linnaeus, 1758
  9. subclassTheria Parker & Haswell, 1897
  10. infraclassEutheria Gill, 1872
  11. orderRodentia Bowdich, 1821
  12. suborderHystricomorpha Brandt, 1855
  13. infraorderHystricognathi Brandt, 1855
  14. familyOctodontidae Waterhouse, 1840
  15. genusOctodontomys Palmer, 1903
  16. speciesOctodontomys gliroides (Gervais & d'Orbigny, 1844)

Close classified relatives

No other member of this genus is present in the selected snapshot.

Browse 11 records assigned to Octodontidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Octodontomys simonsi (Thomas, 1902) (Thomas, 1902)synonym
Octodon gliroides Gervais & d'Orbigny, 1844 Gervais & d'Orbigny, 1844synonym

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

South America

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

  1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=584783 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:48JW6. Classification follows source parent identifiers. English common names may vary by region.