Antechinus stuartii
Silhouette: Robbi Bishop-Taylor · PhyloPic
In 3 days ~50% in a week ~80%
The brown antechinus (Antechinus stuartii), also known as Stuart's antechinus and Macleay's marsupial mouse, is a species of small carnivorous marsupial of the family Dasyuridae. The males die after their first breeding season, and the species holds the world record for being the world's smallest semelparous mammal.
Antechinus stuartii is mostly light brown above, including the upper surfaces of its feet, and a lighter brown below and on its tail. Its body length is 93–130 mm (3.7–5.1 in) and its tail 92–120 mm (3.6–4.7 in), and it weighs 16–44 g (0.56–1.55 oz). Unlike in other members of Antechinus, no pale-coloured eye ring occurs. Antechinus agilis is similar in appearance and difficult to distinguish except by its distribution.
The brown antechinus was only the third in its genus to be described and as such, until recently, has included species such as the agile antechinus (Antechinus agilis), the subtropical antechinus (Antechinus subtropicus), and the tropical antechinus (Antechinus adustus). It has also been included itself with the yellow-footed antechinus as the subspecies A. flavipes burrelli. It was described in 1841 by the entomologist William... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Royal National Park | 🇦🇺 Australia | |
| 2 | Lamington National Park | 🇦🇺 Australia | |
| 3 | Booderee National Park | 🇦🇺 Australia | |
| 4 | Blue Mountains National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sydney | 🇦🇺 Australia |
No species of the same family or order lives in Royal National Park, so these are its closest relatives here: other mammals.
Possible
About 20% of wildlife watchers report a Brown Antechinus sighting in Royal National Park on a given day, based on 30 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 15 mammals we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
September
In that month about 40% of wildlife watchers report a Brown Antechinus in Royal National Park on a given day, against under 5% in March and April, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Brown Antechinus sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 parks where we can rate Brown Antechinus sightings, Royal National Park has the highest daily chance: about 20%. Next come Lamington National Park (Australia, about 20%) and Booderee National Park (Australia, about 10%).
GBIF citizen-science records
It is estimated from how often the Brown Antechinus is recorded against all the mammals logged in Royal National Park (30 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
