Ryukyu mouse
Mus caroli Bonhote, 1902
Status not recordedrodents
The ryukyu mouse (Mus caroli) is a species in the family Muridae, order Rodentia. Recorded adults weigh 11.3 g to 18.7 g and live up to 6 years.
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Quick facts about the ryukyu mouse
- Weight
- 11.3 g – 18.7 g
- Length
- Not recorded
- Lifespan
- 4 years – 6 years
- Diet
- Herbivore
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 19.6 days
- Young per litter or clutch
- 5.81
- Age at maturity
- 42 days – 53.4 days
- Litters or clutches a year
- 4.57
- Active
- At night (nocturnal)
- Lifestyle
- Terrestrial
- Conservation status
- Not recorded
- Countries on record
- Not recorded
Where does the ryukyu mouse live?
Not recorded
Is the ryukyu mouse endangered?
No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.
How is the ryukyu mouse classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familyMuridae
- genusMus
- SpeciesMus caroli Bonhote, 1902
Synonyms Mus boninensis, Mus caroli boninensis, Mus caroli formosanus, Mus formosanus, Mus kurilensis, Mus ouwensi
Other names and names in other languages (12)
- Ricefield mouseEnglish
- فأر ريوكيوArabic
- ReisfeldmausGerman
- Ratón de RyukyuSpanish
- riukiusaartenhiiriFinnish
- Souris de RothschildFrench
- オキナワハツカネズミJapanese
- mysz ryżowaPolish
- Рюкюйская мышьRussian
- หนูหริ่งนาหางยาวThai
- 田鼷鼠Chinese
- Liuqiu XiaojiashuChinese
Relatives of the ryukyu mouse
Other species in the same genus Mus.

House mouse
Mus musculus
Pygmy mouse
Mus minutoides
Steppe mouse
Mus spicilegus
Common Indian field mouse
Mus booduga
Macedonian mouse
Mus macedonicus
Algerian mouse
Mus spretus
CompareRyukyu mouse vs House mouseRyukyu mouse vs Pygmy mouseRyukyu mouse vs Steppe mouseRyukyu mouse vs Common Indian field mouse
Common questions
Answered only where our data holds the answer.
How big is the ryukyu mouse?
An adult ryukyu mouse weighs 11.3 g – 18.7 g, according to values recorded on Wikidata.
How long does the ryukyu mouse live?
The ryukyu mouse has a recorded lifespan of 4 years – 6 years.
How long is the ryukyu mouse pregnant?
The recorded gestation period is 19.6 days.
What kind of animal is the ryukyu mouse?
The ryukyu mouse (Mus caroli) 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 - AmphiBIO, a global database for amphibian ecological traits · CC BY 4.0 · v1
Oliveira, B.F., São-Pedro, V.A., Santos-Barrera, G., Penone, C. & Costa, G.C. (2017) AmphiBIO, a global database for amphibian ecological traits. Scientific Data 4: 170123. https://doi.org/10.1038/sdata.2017.123. Data: https://doi.org/10.6084/m9.figshare.4644424.v5 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - 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). Ryukyu mouse (Mus caroli). Retrieved from https://creaturedata.com/animals/ryukyu-mouse
“Ryukyu mouse (Mus caroli).” CreatureData, 2026, https://creaturedata.com/animals/ryukyu-mouse.
@misc{ryukyu_mouse_2026,
title = {Ryukyu mouse (Mus caroli)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/ryukyu-mouse},
note = {Data as of 2026-11-11}
}