Uperodon rohani
Silhouette: PhyloPic
In 3 days ~80% in a week >90%
Uperodon rohani, commonly known as Rohan's globular frog, is a species of Microhylid frog. It is endemic to Sri Lanka. It was named after scientist Rohan Pethiyagoda, known for his works on Sri Lankan fishes and amphibians, among others.
It was previously considered conspecific with Uperodon variegatus, but was separated in 2018. The genetic difference between them is large, around 2.8%. It is a small frog, typically around 26–34 millimetres (2.6–3.4 cm) long in males and 28–35 millimetres (2.8–3.5 cm) in females. It is maroon with slightly pale olive yellow spots, blotches and streaks. Near its belly and thigh there are densely packed olive speckles. It has a partially translucent foot and ankle.
It is found throughout Sri Lanka, but is most abundant in the lowlands. It is found in wet environments, such as ponds and puddles. It regularly interacts with humans, being common in water bodies and reservoirs, agricultural land such as paddyfields, and moist locations within houses and buildings, such as bathrooms. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wilpattu National Park | 🇱🇰 Sri Lanka | |
| 2 | Minneriya National Park | 🇱🇰 Sri Lanka |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka |
Likely
About 40% of wildlife watchers report a Rohan's Globular Frog sighting in Wilpattu National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 3rd most-seen of the 6 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.
August
In that month about 70% of wildlife watchers report a Rohan's Globular Frog in Wilpattu National Park on a given day, against under 5% in July and November–December, the lowest months. That is one of Wilpattu National Park's driest months, with about 65 mm of rain against 320 mm in November.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Rohan's Globular Frog sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 2 parks where we can rate Rohan's Globular Frog sightings, Wilpattu National Park has the highest daily chance: about 40%. Next come Minneriya National Park (Sri Lanka, about 30%).
Same order: Anura
The closest relatives of the Rohan's Globular Frog that you can see in Wilpattu National Park (order Anura, Frogs and Toads) are Chunam Tree Frog (about 50%), Common skittering frog (about 40%) and Indian Five-Fingered Frog (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rohan's Globular Frog is recorded against all the amphibians logged in Wilpattu National Park (13 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.
