Leptobrachium montanum
Silhouette: Chuanixn Yu · PhyloPic
In 3 days ~80% in a week >90%
Leptobrachium montanum is a species of frog from the family Megophryidae. It is endemic to Borneo and is, as currently defined, found in Kalimantan (Indonesia), Sabah and Sarawak (Malaysia), and Labi, Belait (Brunei). However, the nominal Leptobrachium montanum is a composed of more than one lineage. Available information mostly refers to this composite rather than the "true" Leptobrachium montanum. Common names montane large-eyed litter frog, mountain spadefoot toad, and mountain litter frog have been coined for it.
The holotype of Leptobrachium montanum is an adult female measuring 63 mm (2.5 in) in snout–vent length (SVL). Two adult males and four females representing "Leptobrachium montanum lineage 1" measure 56–57 mm (2.2–2.2 in) and females 49–72 mm (1.9–2.8 in) SVL, respectively. This lineage from southeastern Kalimantan is believed to represent the "true" Leptobrachium montanum. The dorsum is brown above, mimicking dead leaves. The head is broad. The eyes are big.
male advertisement call is a loud "quak". The tadpoles are large and possess a strong tail with well-developed tail fin. They reach a total length of 70 mm (2.8 in) or even more. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kinabalu Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
Likely
About 40% of wildlife watchers report a Montane Large-eyed Litter Frog sighting in Kinabalu Park on a given day, based on 81 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 40 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.
November
In that month about 70% of wildlife watchers report a Montane Large-eyed Litter Frog in Kinabalu Park on a given day, against about 20% in January and May, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Montane Large-eyed Litter Frog sightings with a recorded time, and about 8 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 Montane Large-eyed Litter Frog sightings: about 40% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Montane Large-eyed Litter Frog is recorded against all the amphibians logged in Kinabalu Park (81 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.
