River Toad

River Toad

Phrynoidis asper

Silhouette: Michael Scroggie, from original photograph by Gary M. Stolz, USFWS (original photograph in public domain). · PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~10% · With luck
at Bandung

In 3 days ~20% in a week ~50%

6 Verified sightings at Bandung
94 In all 3 parks From 2019 to 2026
January Best month
☀️ Diurnal When it's spotted

About the River Toad

The Asian giant toad (Phrynoidis asper), sometimes referred to as the river toad, is a species of true toad native to Mainland Southeast Asia and the Greater Sundas. It is a medium-large toad, but it is easily confused with its larger relative, the giant river toad (P. juxtasper).

Phrynoidis asper is generally a dark grey, green, black or brown in color, and is heavily covered in tubercles. Females can reach up to 14 cm (5.5 in) in snout–to–vent length and males up to 10 cm (3.9 in). They can be commonly found near stream and rivers.

"Bufo asper". Integrated Taxonomic Information System. Retrieved 19 March 2006. Frogs of the Malay Peninsula: Bufo asper Wikipedia →

Sounds

Advertisement call0:28

Malaysia · 2014

© Marc Anderson · XC883200 · CC BY-NC-ND 4.0

Recording0:29

2023

© Averroes Oktaliza · iNaturalist · CC BY-NC 4.0

Recording0:05

Indonesia · 2020

© Ganjar Cahyadi · iNaturalist · CC BY-NC 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Khao Luang National Park 🇹🇭 Thailand
~40%
2 Khao Sok National Park 🇹🇭 Thailand
~40%
3 Gunung Leuser National Park 🇮🇩 Indonesia
~40%

Cities Where Found

# City Country Daily sighting probability
1 Malang 🇮🇩 Indonesia
~50%
2 Jakarta 🇮🇩 Indonesia
~40%
3 Tasikmalaya 🇮🇩 Indonesia
~30%
4 Bandung 🇮🇩 Indonesia
~10%

Zoos & Centres Where Found

# Zoo / Centre Country
1 San Diego Zoo 🇺🇸 United States In captivity
2 California Academy of Sciences 🇺🇸 United States In captivity
3 Omaha’s Henry Doorly Zoo and Aquarium 🇺🇸 United States In captivity
4 Chester Zoo 🇬🇧 United Kingdom In captivity
5 Birmingham Zoo 🇺🇸 United States In captivity
6 Night Safari 🇸🇬 Singapore In captivity
7 Singapore Zoo 🇸🇬 Singapore In captivity
8 Entopia 🇲🇾 Malaysia In captivity

Before you go

What are the chances of seeing a River Toad in Bandung?

With luck

About 10% of wildlife watchers report a River Toad sighting in Bandung on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 7th most-seen of the 9 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.

When is the best time to see a River Toad in Bandung?

January

In that month about 20% of wildlife watchers report a River Toad in Bandung on a given day, against under 5% in February–June, August–September and December, the lowest months. That is one of Bandung's wettest months, with about 340 mm of rain against 45 mm in August.

What time of day is best to see a River Toad?

Between 2 and 5 pm

Across all the parks we cover, that three-hour window holds the most River Toad sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Bandung the best place to see a River Toad?

4th of 4

Of the 4 cities where we can rate River Toad sightings, Bandung ranks 4th at about 10%. The best odds are in Malang (Indonesia, about 50%), Jakarta (Indonesia, about 40%) and Tasikmalaya (Indonesia, about 30%).

Where does the River Toad sighting chance come from?

GBIF citizen-science records

It is estimated from how often the River Toad is recorded against all the amphibians logged in Bandung (6 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.

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