Pulchrana glandulosa
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~20% in a week ~40%
Hylarana glandulosa, commonly known as the rough-sided frog or the glandular frog, is a species of true frog in the genus Hylarana. It is native to Brunei Darussalam, Indonesia, Malaysia, Singapore, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical swampland, rivers, freshwater marshes, caves, and plantations. It is not considered threatened by the IUCN.
In Thailand, it is called h̄mā n̂ảm (Thai: หมาน้ำ; literally: water dog) because its call sounds like a barking puppy. Sound recordings of Hylarana glandulosa at BioAcoustica Wikipedia →
Recording0:36
Malaysia · 2025
© ChanSK · iNaturalist · CC BY-NC 4.0
Recording0:16
Malaysia · 2024
© Aster Hii · iNaturalist · CC BY-NC 4.0
Recording0:12
Brunei · 2024
© Amaël Borzée · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sepilok | 🇲🇾 Malaysia | |
| 2 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia |
With luck
About 10% of wildlife watchers report a Rough-sided frog sighting in Kuala Lumpur on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 11th most-seen of the 17 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June–July, September and December–March
In those months about 10% of wildlife watchers report a Rough-sided frog in Kuala Lumpur on a given day, against under 5% in April–May, August and October–November, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Rough-sided frog 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 Kuala Lumpur, in our data
Kuala Lumpur is the only city on Wallace's Line with enough records to rate Rough-sided frog sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Ranidae
The closest relatives of the Rough-sided frog that you can see in Kuala Lumpur (family Ranidae, Typical Frogs) are White-lipped Frog (about 20%), Green Paddy Frog (about 10%) and American Bullfrog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rough-sided frog is recorded against all the amphibians logged in Kuala Lumpur (13 verified sightings), 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.
