Brush mouse
Peromyscus boylii (Baird, 1855)
The brush mouse (Peromyscus boylii) is a species in the family Cricetidae, order Rodentia. Recorded adults weigh 21.4 g to 23.9 g and live up to 1.5 years. Its IUCN Red List status is Least Concern.
Quick facts about the brush mouse
- Weight
- 21.4 g – 23.9 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 1.5 yearssrc for Lifespan
- Diet
- Carnivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 25 dayssrc for Gestation
- Young per litter or clutch
- 3.19src for Young per litter or clutch
- Age at maturity
- 53 dayssrc for Age at maturity
- Litters or clutches a year
- 4src 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 brush mouse live?
Not recorded
What is the brush mouse?
The brush mouse (Peromyscus boylii) 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". It is found in mountainous areas of Mexico and the western United States at altitudes over 2,000 m (6,600 ft).
From the Wikipedia article “Brush mouse” (en.wikipedia.org/w/index.php?title=Brush_mouse&oldid=1380759019), 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 brush mouse endangered?
The brush 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. What the categories mean.
How is the brush mouse classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familyCricetidae
- genusPeromyscus
- SpeciesPeromyscus boylii (Baird, 1855)
Synonyms Hesperomys boylii, Peromyscus boylii glasselli, Peromyscus boylii utahensis, Peromyscus gaurus, Peromyscus metallicola, Peromyscus parasiticus, Sitomys major, Sitomys robustus, Sitomys rowleyi, Sitomys rowleyi pinalis
Other names and names in other languages (8)
- Brush deermouseEnglish
- Brush deermouseEnglish
- Ratón arbusteroSpanish
- pensaikkopeurahiiruFinnish
- ボイリーシロアシマウスJapanese
- myszak zaroślowyPolish
- Camundongo-arbusteiroPortuguese
- Гребенчатый хомячокRussian
Relatives of the brush mouse
Other species in the same genus Peromyscus.
White-footed mouse
Peromyscus leucopus
Eastern deer mouse
Peromyscus maniculatus
Cactus mouse
Peromyscus eremicus
Cotton mouse
Peromyscus gossypinus
Oldfield mouse
Peromyscus polionotus
California deermouse
Peromyscus californicus
CompareBrush mouse vs White-footed mouseBrush mouse vs Eastern deer mouseBrush mouse vs Cactus mouseBrush mouse vs Cotton mouse
Common questions
Answered only where our data holds the answer.
How big is the brush mouse?
An adult brush mouse weighs 21.4 g – 23.9 g, according to values recorded on Wikidata.
Is the brush mouse endangered?
The brush mouse is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the brush mouse live?
The brush mouse has a recorded lifespan of 1.5 years.
How long is the brush mouse pregnant?
The recorded gestation period is 25 days.
What kind of animal is the brush mouse?
The brush mouse (Peromyscus boylii) 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). Brush mouse (Peromyscus boylii). Retrieved from https://creaturedata.com/animals/brush-mouse
“Brush mouse (Peromyscus boylii).” CreatureData, 2026, https://creaturedata.com/animals/brush-mouse.
@misc{brush_mouse_2026,
title = {Brush mouse (Peromyscus boylii)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/brush-mouse},
note = {Data as of 2026-11-11}
}