Ansonia minuta
Silhouette: Michael Scroggie, from original photograph by Gary M. Stolz, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~70% in a week ~90%
Ansonia minuta is a species of toad in the family Bufonidae, described from the forests of Sarawak in 1960. It is known by a number of common names: tiny stream toad, dwarf slender toad, and minute slender toad. It is endemic to Borneo (both Indonesia and Malaysia) and occurs in tropical moist lowland forests. It is threatened by habitat loss.
Recent phylogenetic studies found that A. minuta forms a sister relationship with another as yet undescribed member of Ansonia, and is positioned in a clade consisting of Ansonia hanitschi, Ansonia spinulifer, Ansonia platysoma, and the undescribed species.
A. minuta is a smaller member of the genus Ansonia. Males range up between 20–24 mm (0.79–0.94 in) while the females measure up to 30 mm (1.2 in) in snout–vent length. The species is slender, with a wide truncate snout. Ear tympani are visible; the feet have rudimentary webbing. The skin on the back is tuberculate with rounded warts, while flanks and throat are more finely granulated. The male possesses a vocal sac with a longitudinal slit on the left side of the mouth. Larvae are recorded to grow up to 17.2 mm (0.68 in).
The...
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kubah National Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Dwarf Slender Toad sighting in Kubah National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 29th most-seen of the 41 amphibians we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
June
In that month about 60% of wildlife watchers report a Dwarf Slender Toad in Kubah National Park on a given day, against under 5% in March and November, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Dwarf Slender Toad sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Kubah National Park, in our data
Kubah National Park is the only park on Wallace's Line with enough records to rate Dwarf Slender Toad sightings: about 30% of wildlife watchers there report one on a given day.
Same genus: Ansonia
The closest relatives of the Dwarf Slender Toad that you can see in Kubah National Park (genus Ansonia, Stream Toads) are Spiny Slender Toad (about 50%) and Brown Slender Toad (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dwarf Slender Toad is recorded against all the amphibians logged in Kubah National Park (17 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.
