Large White-lipped Frog

Large White-lipped Frog

Chalcorana megalonesa

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~10% · With luck
at Sepilok
11 Verified sightings at Sepilok From 2019 to 2026
44 Verified sightings across all 4 parks From 2019 to 2026
April Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Large White-lipped Frog

Chalcorana megalonesa is a species of true frog in the family Ranidae, the "true frogs". It is endemic to Borneo and is known from both Malaysia (Sarawak, Sabah) and Indonesia (Kalimantan). It was split off from Rana chalconota (now Chalcorana chalconota) in 2009 by Robert Inger and colleagues, along with a number of other species. Common name large white-lipped frog has been coined for it.

Chalcorana megalonesa are moderately large-sized frogs: adult males measure 33–48 mm (1.3–1.9 in) and females 45–66 mm (1.8–2.6 in) in snout–vent length. Body is moderately slender and legs are long. Dorsum is weakly granular. Colouration is mostly green. The snout is long and pointed. Finger and toe tips have adhesive disks. It is very similar to Chalcorana raniceps in colouration and general body shape but is clearly bigger in size.

Chalcorana megalonesa occurs in tropical moist lowland and swamp forest at elevations of 20–600 m (66–1,969 ft) above sea level. Breeding takes place in small, permanent ponds (usually >30 cm deep). It can also be found in oil palm and forest concessions and appears to tolerate habitat disturbance. However, the use of pesticides and herbicides... Wikipedia →

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Daily sighting probability
1 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia
~20%
2 Sepilok 🇲🇾 Malaysia
~10%
3 Danum Valley Conservation Area 🇲🇾 Malaysia
Insufficient data
4 Kinabalu Park 🇲🇾 Malaysia
Insufficient data

Quick answers

What are the chances of seeing a Large White-lipped Frog in Sepilok?

About 10% of wildlife watchers report a Large White-lipped Frog sighting in Sepilok, based on 11 verified sightings from GBIF citizen-science data.

When is the best time to see Large White-lipped Frog in Sepilok?

April has the highest sighting rate for Large White-lipped Frog in Sepilok in our monthly data.

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