Mayor's mouse
Mus mayori (Thomas, 1915)
The mayor's mouse (Mus mayori) is a species in the family Muridae, order Rodentia. Recorded adults weigh about 20.8 g. Its IUCN Red List status is Vulnerable.
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Quick facts about the mayor's mouse
- Weight
- 20.8 gsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Herbivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Young per litter or clutch
- 2.98src for Young per litter or clutch
- Active
- At night (nocturnal)src for Active
- Lifestyle
- Terrestrialsrc for Lifestyle
- Conservation status
- Vulnerable (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the mayor's mouse live?
Not recorded
What is the mayor's mouse?
Mus mayori is a species of rodent in the genus Mus, the mice. Its common names include Mayor's mouse, highland rat, and spiny mouse. It is endemic to Sri Lanka.
This mouse lives in tropical and subtropical forest types and wet grassland habitat. It is fossorial, seeking shelter by digging burrows. It is nocturnal.
This species is widespread in parts of Sri Lanka but it faces a number of threats, including deforestation and domestic cats.
There are two subspecies, M. m. mayori and M. m. pococki. A recent study catalogued the parasites associated with subspecies pococki: a mite of genus Echinolaelaps, a tick of genus Ixodes, and the sucking louse Polyplax spinulosa. A new species of pseudoscorpion was found on the mouse, described, and named Megachernes kanneliyensis. The mouse also carries the native Sri Lankan flea Stivalius phoberus.
From the Wikipedia article “Mayor's mouse” (en.wikipedia.org/w/index.php?title=Mayor%27s_mouse&oldid=1344758776), 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 mayor's mouse endangered?
The mayor's mouse is listed as Vulnerable on the IUCN Red List: it faces a 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 Vulnerable species. What the categories mean.
How is the mayor's mouse classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familyMuridae
- genusMus
- SpeciesMus mayori (Thomas, 1915)
Synonyms Coelomys bicolor, Coelomys mayori, Mus mayori mayori, Mus mayori pococki
Other names and names in other languages (13)
- Highland ratEnglish
- Highland ratEnglish
- Mayor s mouseEnglish
- Mayor’s mouseEnglish
- Mayor’s mouseEnglish
- myš MayorovaCzech
- Mayor-MausGerman
- srilankanhiiriFinnish
- スリランカハツカネズミJapanese
- mysz dżunglowaPolish
- Мышь МайораRussian
- Kelle-miyaSinhala
- Kart’elliTamil
Relatives of the mayor's mouse
Other species in the same genus Mus.

House mouse
Mus musculus

African pygmy mouse
Mus minutoides

Steppe mouse
Mus spicilegus

Little Indian field mouse
Mus booduga

Macedonian mouse
Mus macedonicus

Algerian mouse
Mus spretus
CompareMayor's mouse vs House mouseMayor's mouse vs African pygmy mouseMayor's mouse vs Steppe mouseMayor's mouse vs Little Indian field mouse
Common questions
Answered only where our data holds the answer.
How big is the mayor's mouse?
An adult mayor's mouse weighs 20.8 g, according to values recorded on Wikidata.
Is the mayor's mouse endangered?
The mayor's mouse is listed as Vulnerable on the IUCN Red List, meaning it faces a high risk of extinction in the wild.
What kind of animal is the mayor's mouse?
The mayor's mouse (Mus mayori) belongs to the family Muridae 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).
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). Mayor's mouse (Mus mayori). Retrieved from https://creaturedata.com/animals/mayors-mouse
“Mayor's mouse (Mus mayori).” CreatureData, 2026, https://creaturedata.com/animals/mayors-mouse.
@misc{mayors_mouse_2026,
title = {Mayor's mouse (Mus mayori)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/mayors-mouse},
note = {Data as of 2026-11-11}
}