Long-tailed dunnart
Sminthopsis longicaudata Spencer, 1909
The long-tailed dunnart (Sminthopsis longicaudata) is a species in the family Dasyuridae, order Dasyuromorphia. Recorded adults weigh 18 g to 78.2 g and live up to 2.29 years. Source checklists list it for 1 country: Australia. Its IUCN Red List status is Least Concern.

Quick facts about the long-tailed dunnart
- Weight
- 18 g – 78.2 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 2.29 yearssrc for Lifespan
- Diet
- Invertivoresrc for Diet
- Longest recorded lifespan
- 5 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 15 dayssrc for Gestation
- Young per litter or clutch
- 3.62src for Young per litter or clutch
- Litters or clutches a year
- 2src 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
- 1 countrysrc for Countries on record
Where does the long-tailed dunnart live?
Countries where Catalogue of Life checklists list the species. Many checklists carry no country data, so the list is often incomplete. It is not a range map.
The long-tailed dunnart is listed for 1 country.
- Listed
- Not listed
The same countries as a list
Why a country list is not a range map
Listed by: ITIS (scope: global), through the Catalogue of Life.
What is the long-tailed dunnart?
The long-tailed dunnart (Antechinomys longicaudatus) is an Australian dunnart that, like the little long-tailed dunnart, has a tail longer than its body. It is also one of the larger dunnarts at a length from snout to tail of 260–306 mm (10.2–12.0 in) of which head to anus is 80–96 mm (3.1–3.8 in) and tail 180–210 mm (7.1–8.3 in) long. Hind foot size is 18 mm (0.71 in), ear length of 21 mm (0.83 in) and with a weight of 15–20 g (0.53–0.71 oz).
From the Wikipedia article “Long-tailed dunnart” (en.wikipedia.org/w/index.php?title=Long-tailed_dunnart&oldid=1377494722), 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 long-tailed dunnart endangered?
The long-tailed dunnart 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 long-tailed dunnart classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderDasyuromorphia
- familyDasyuridae
- genusSminthopsis
- SpeciesSminthopsis longicaudata Spencer, 1909
Synonyms Antechinomys longicaudatus
Other names and names in other languages (3)
- Greater long-tailed dunnartEnglish
- Long tailed marsupial-mouseEnglish
- Langschwanz-Schmalfuß-BeutelmausGerman
Relatives of the long-tailed dunnart
Other species in the same genus Sminthopsis.

Fat-tailed dunnart
Sminthopsis crassicaudata

Kangaroo island dunnart
Sminthopsis aitkeni

Stripe-faced dunnart
Sminthopsis macroura

Sandhill dunnart
Sminthopsis psammophila
Chestnut dunnart
Sminthopsis archeri
Julia Creek dunnart
Sminthopsis douglasi
CompareLong-tailed dunnart vs Fat-tailed dunnartLong-tailed dunnart vs Kangaroo island dunnartLong-tailed dunnart vs Stripe-faced dunnartLong-tailed dunnart vs Sandhill dunnart
Common questions
Answered only where our data holds the answer.
How big is the long-tailed dunnart?
An adult long-tailed dunnart weighs 18 g – 78.2 g, according to values recorded on Wikidata.
Where does the long-tailed dunnart live?
Catalogue of Life checklists list the long-tailed dunnart for 1 country: Australia. Checklist coverage is uneven, so the true range may be wider.
Is the long-tailed dunnart endangered?
The long-tailed dunnart is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the long-tailed dunnart live?
The long-tailed dunnart has a recorded lifespan of 2.29 years.
How long is the long-tailed dunnart pregnant?
The recorded gestation period is 15 days.
What kind of animal is the long-tailed dunnart?
The long-tailed dunnart (Sminthopsis longicaudata) belongs to the family Dasyuridae in the order Dasyuromorphia.
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). Long-tailed dunnart (Sminthopsis longicaudata). Retrieved from https://creaturedata.com/animals/long-tailed-dunnart
“Long-tailed dunnart (Sminthopsis longicaudata).” CreatureData, 2026, https://creaturedata.com/animals/long-tailed-dunnart.
@misc{long_tailed_dunnart_2026,
title = {Long-tailed dunnart (Sminthopsis longicaudata)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/long-tailed-dunnart},
note = {Data as of 2026-11-11}
}