San Lorenzo mouse
Peromyscus interparietalis Burt, 1932
CRCritically Endangeredrodents
The san lorenzo mouse (Peromyscus interparietalis) is a species in the family Cricetidae, order Rodentia. Recorded adults weigh 21.8 g to 28 g and live up to 7.4 years. Its IUCN Red List status is Critically Endangered.
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Quick facts about the san lorenzo mouse
- Weight
- 21.8 g – 28 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 7.4 yearssrc for Lifespan
- Diet
- Carnivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 26 dayssrc for Gestation
- Young per litter or clutch
- 2.52src 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
- Critically Endangered (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the san lorenzo mouse live?
Not recorded
What is the san lorenzo mouse?
The San Lorenzo mouse (Peromyscus interparietalis) 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 endemic to Mexico, where it is found only from the islands of San Lorenzo Norte, San Lorenzo Sur, and Salsipuedes off the east coast of Baja California. The species is threatened by predation by feral and domestic cats, particularly on San Lorenzo Sur.
From the Wikipedia article “San Lorenzo mouse” (en.wikipedia.org/w/index.php?title=San_Lorenzo_mouse&oldid=1315241646), 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 san lorenzo mouse endangered?
The san lorenzo mouse is listed as Critically Endangered on the IUCN Red List: it faces an extremely high risk of extinction in the wild.
- 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 Critically Endangered species. What the categories mean.
How is the san lorenzo mouse classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familyCricetidae
- genusPeromyscus
- SpeciesPeromyscus interparietalis Burt, 1932
Synonyms Peromyscus guardia interparietalis, Peromyscus interparietalis lorenzi, Peromyscus interparietalis ryckmani
Other names and names in other languages (2)
- San Lorenzo deermouseEnglish
- San Lorenzo deermouseEnglish
Relatives of the san lorenzo 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
CompareSan Lorenzo mouse vs White-footed mouseSan Lorenzo mouse vs Eastern deer mouseSan Lorenzo mouse vs Cactus mouseSan Lorenzo mouse vs Cotton mouse
Common questions
Answered only where our data holds the answer.
How big is the san lorenzo mouse?
An adult san lorenzo mouse weighs 21.8 g – 28 g, according to values recorded on Wikidata.
Is the san lorenzo mouse endangered?
The san lorenzo mouse is listed as Critically Endangered on the IUCN Red List, meaning it faces an extremely high risk of extinction in the wild.
How long does the san lorenzo mouse live?
The san lorenzo mouse has a recorded lifespan of 7.4 years.
How long is the san lorenzo mouse pregnant?
The recorded gestation period is 26 days.
What kind of animal is the san lorenzo mouse?
The san lorenzo mouse (Peromyscus interparietalis) 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 - 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).
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CreatureData. (2026). San Lorenzo mouse (Peromyscus interparietalis). Retrieved from https://creaturedata.com/animals/san-lorenzo-mouse
“San Lorenzo mouse (Peromyscus interparietalis).” CreatureData, 2026, https://creaturedata.com/animals/san-lorenzo-mouse.
@misc{san_lorenzo_mouse_2026,
title = {San Lorenzo mouse (Peromyscus interparietalis)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/san-lorenzo-mouse},
note = {Data as of 2026-11-11}
}