Pulchrana signata
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~80% in a week >90%
" Pulchrana signata, commonly known as the variable-backed frog, striped stream frog, spotted stream frog, or Matang frog, is a species of "true frog" (family Ranidae). It is native to the Malay Peninsula (Thailand and Peninsular Malaysia), Sumatra and Natuna Archipelago (Indonesia), and Borneo (Malaysia, Brunei Darussalam, Indonesia). Its occurs in lowland tropical forests, including swamp and heath forests, a altitudes up to 700 m (2,300 ft) above sea level. It is not currently considered threatened by the IUCN.
Sound recordings of Pulchrana signata at BioAcoustica
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kubah National Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Entopia | 🇲🇾 Malaysia | |
| 2 | Downtown Aquarium, Houston | 🇺🇸 United States |
Likely
About 40% of wildlife watchers report a Striped Stream Frog sighting in Kubah National Park on a given day, based on 23 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 41 amphibians we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
June and August–September
In those months about 50% of wildlife watchers report a Striped Stream Frog in Kubah National Park on a given day, against under 5% in March and July, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Striped Stream Frog sightings with a recorded time, and about 8 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 Striped Stream Frog sightings: about 40% of wildlife watchers there report one on a given day.
Same genus: Pulchrana
The closest relatives of the Striped Stream Frog that you can see in Kubah National Park (genus Pulchrana) are Brown Marsh Frog (about 40%) and Spotted Stream Frog (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Striped Stream Frog is recorded against all the amphibians logged in Kubah National Park (23 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.
