Ansonia spinulifer
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 spinulifer, also known as spiny slender toad or Kina Balu stream toad, is a species of true toad in the family Bufonidae. It is found in Sarawak and Sabah, northern Borneo (Malaysia), and presumably also in Kalimantan on the Indonesian part of the island.
Ansonia spinulifer males measure 30–40 mm (1.2–1.6 in) and females up to 45 mm (1.8 in) in snout–vent length. Tympanum is visible. Dorsum has big spinose warts and usually a light spot between the shoulders. The warts are large and have keratinized projections, hence the species name. Tadpoles have the typical sucker mouth of rheophilous Ansonia tadpoles.
Its natural habitats are lowland rainforests at elevations of 150–750 m (490–2,460 ft) asl. Adults range widely over the floor and herb stratum in areas of steep terrain, but breeding requires small, clear, rocky-bottomed streams. Males call at night, sitting in low vegetation close to streams. The tadpoles live in torrents; they cling to rocks and feed on lithophytes.
Ansonia spinulifer is common in Sarawak, but it seems not to adapt to habitat modification. It is threatened by habitat loss (deforestation and the associated... Wikipedia →
Recording0:34
Indonesia · 2020
© Amat Ribut · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kinabalu Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Spiny Slender Toad sighting in Kinabalu Park on a given day, based on 42 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 14th most-seen of the 40 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.
February, April and September–December
In those months about 40% of wildlife watchers report a Spiny Slender Toad in Kinabalu Park on a given day, against under 5% in January, the lowest month.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Spiny Slender Toad sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Kinabalu Park, in our data
Kinabalu Park is the only park on Wallace's Line with enough records to rate Spiny Slender Toad sightings: about 30% of wildlife watchers there report one on a given day.
Same genus: Ansonia
The closest relatives of the Spiny Slender Toad that you can see in Kinabalu Park (genus Ansonia, Stream Toads) are Kinabalu Slender Toad (about 40%), Long-fingered Stream Toad (about 30%) and North Borneo Stream Toad (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Spiny Slender Toad is recorded against all the amphibians logged in Kinabalu Park (42 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.
