Cactus mouse
Peromyscus eremicus (Baird, 1857)
The cactus mouse (Peromyscus eremicus) is a species in the family Cricetidae, order Rodentia. Recorded adults weigh 20 g to 23.7 g and live up to 7.4 years. Its IUCN Red List status is Least Concern.

Quick facts about the cactus mouse
- Weight
- 20 g – 23.7 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 7.4 yearssrc for Lifespan
- Diet
- Carnivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 21 days – 26 dayssrc for Gestation
- Young per litter or clutch
- 2.6src for Young per litter or clutch
- Age at maturity
- 4.23 monthssrc for Age at maturity
- Litters or clutches a year
- 3.5src for Litters or clutches a year
- 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
Where does the cactus mouse live?
Not recorded
What is the cactus mouse?
The cactus mouse or cactus deermouse (Peromyscus eremicus) is a species of rodent in the family Cricetidae. It is a species of the genus Peromyscus, a closely related group of New World mice often called "deermice". They are native to desert areas of western North America.
From the Wikipedia article “Cactus mouse” (en.wikipedia.org/w/index.php?title=Cactus_mouse&oldid=1328341133), 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 cactus mouse endangered?
The cactus mouse 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.
How is the cactus mouse classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familyCricetidae
- genusPeromyscus
- SpeciesPeromyscus eremicus (Baird, 1857)
Synonyms Hesperomys anthonyi, Hesperomys eremicus, Peromyscus cedrosensis, Peromyscus collatus, Peromyscus eremicus alcorni, Peromyscus eremicus avius, Peromyscus eremicus cinereus, Peromyscus eremicus insulicola, Peromyscus eremicus papagensis, Peromyscus eremicus phaeurus, Peromyscus eremicus polypolius, Peromyscus eremicus pullus, Peromyscus eremicus sinaloensis, Peromyscus eremicus tiburonensis
Other names and names in other languages (15)
- Cactus deermouseEnglish
- San Lorenzo deermouseEnglish
- San Lorenzo mouseEnglish
- křeček kaktusovýCzech
- Ratón de cactusSpanish
- Ratón de la isla San LorenzoSpanish
- saaripeurahiiruFinnish
- kaktuspeurahiiruFinnish
- Souris des cactusFrench
- サボテンシロアシマウスJapanese
- myszak wyspowyPolish
- myszak kaktusowyPolish
- Rato-dos-cactosPortuguese
- Кактусовый хомячокRussian
- Сен-лоранский хомячокRussian
Relatives of the cactus mouse
Other species in the same genus Peromyscus.

White-footed mouse
Peromyscus leucopus

Eastern deer mouse
Peromyscus maniculatus
Cotton mouse
Peromyscus gossypinus
Oldfield mouse
Peromyscus polionotus
California deermouse
Peromyscus californicus
Northwestern deer mouse
Peromyscus keeni
CompareCactus mouse vs White-footed mouseCactus mouse vs Eastern deer mouseCactus mouse vs Cotton mouseCactus mouse vs Oldfield mouse
Common questions
Answered only where our data holds the answer.
How big is the cactus mouse?
An adult cactus mouse weighs 20 g – 23.7 g, according to values recorded on Wikidata.
Is the cactus mouse endangered?
The cactus mouse is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the cactus mouse live?
The cactus mouse has a recorded lifespan of 7.4 years.
How long is the cactus mouse pregnant?
The recorded gestation period is 21 days – 26 days.
What kind of animal is the cactus mouse?
The cactus mouse (Peromyscus eremicus) belongs to the family Cricetidae in the order Rodentia.
Sources and how to cite this page
Data as of 2026-11-11. 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). Cactus mouse (Peromyscus eremicus). Retrieved from https://creaturedata.com/animals/cactus-mouse
“Cactus mouse (Peromyscus eremicus).” CreatureData, 2026, https://creaturedata.com/animals/cactus-mouse.
@misc{cactus_mouse_2026,
title = {Cactus mouse (Peromyscus eremicus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/cactus-mouse},
note = {Data as of 2026-11-11}
}