Chilean rock rat
Aconaemys fuscus (Waterhouse, 1842)
The chilean rock rat (Aconaemys fuscus) is a small rodent in the family Octodontidae, within the suborder Hystricomorpha. Adults typically weigh about 134 g, its diet is classed as herbivore, and its activity pattern is nocturnal.
Quick facts about the chilean rock rat
A litter holds 3 or 4 young, and it is listed as Least Concern (LC), which is not a threatened category.
- Weight
- 121 g – 133.5 gsrc for Weight
- Length
- 13.5 cm – 18.7 cmsrc for Length
- Lifespan
- Not recorded
- Diet
- Herbivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Young per litter or clutch
- 3.23src for Young per litter or clutch
- Active
- At night (nocturnal)src for Active
- Lifestyle
- Terrestrialsrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
How big is the chilean rock rat?
Where does the chilean rock rat live?
Not recorded
What is the chilean rock rat?
The Chilean rock rat (Aconaemys fuscus) is a species of rodent in the family Octodontidae. It is found in the high Andes of Argentina and Chile.
From the Wikipedia article “Chilean rock rat” (en.wikipedia.org/w/index.php?title=Chilean_rock_rat&oldid=1369114971), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the chilean rock rat endangered?
The chilean rock rat is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.
How is the chilean rock rat classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familyOctodontidae
- genusAconaemys
- SpeciesAconaemys fuscus (Waterhouse, 1842)
Synonyms Schizodon fuscus
Other names and names in other languages (11)
- جرذ الصخر التشيليArabic
- osmák skalníCzech
- Chilenische FelsenratteGerman
- Südamerikanische FelsenratteGerman
- Rata vizcacha pehuencheSpanish
- andienkivideguFinnish
- チリアナネズミJapanese
- Chilensk KlipperotteNorwegian Bokmål
- AndesrotsratDutch
- Skalniczka płowaPolish
- Чилийский крысиный восьмизубRussian
Relatives of the chilean rock rat
Other species in the same genus Aconaemys.
Sage's rock rat
Aconaemys sagei
Porter's rock rat
Aconaemys porteri
CompareChilean rock rat vs Sage's rock ratChilean rock rat vs Porter's rock rat
Common questions
Each answer is written from the sourced facts on this page, and only where they hold the answer.
How much does the chilean rock rat weigh?
Adults typically weigh about 134 g, and the lowest value reported is 121 g.
What does the chilean rock rat eat?
Its diet is classed as herbivore, and its trophic level as herbivore.
Is the chilean rock rat nocturnal?
Yes, its activity pattern is nocturnal, and its lifestyle is terrestrial.
How many young does the chilean rock rat have?
A litter holds 3 or 4 young.
Is the chilean rock rat endangered?
No. It is listed as Least Concern (LC) in the global assessment, which is not a threatened category.
Sources and how to cite this page
Data as of 2026-11-13. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Chilean rock rat (Aconaemys fuscus). Retrieved from https://creaturedata.com/animals/chilean-rock-rat
“Chilean rock rat (Aconaemys fuscus).” CreatureData, 2026, https://creaturedata.com/animals/chilean-rock-rat.
@misc{chilean_rock_rat_2026,
title = {Chilean rock rat (Aconaemys fuscus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/chilean-rock-rat},
note = {Data as of 2026-11-13}
}