Phrynoidis aspera
River Toad, Rough Toad, Giant Asian Toad, Kodok Buduk Sungal, Kodok Puru Besar
family: Bufonidae
Species Description: Gravenhorst, J. L. C. 1829. Deliciae Musei Zoologici Vratislaviensis. Fasciculus primus. Chelonios et Batrachia. Leipzig: Leopold Voss.

© 2003 Alexander Haas (1 of 19)

  hear call (736.9K MP3 file)

[call details here]

Frogs of Borneo account.

Conservation Status (definitions)
IUCN (Red List) Status Least Concern (LC)
Other International Status None
National Status None
Regional Status None



View distribution map using BerkeleyMapper.

From the IUCN Red List Species Account:


Range Description

This species is found from Myanmar (Kyaik Ti Yo National Park in Mon State), through western Thailand (Tenasserim) and Malaysia (including Penang and Tioman) to Indonesia (Sumatra, Java, Kepulanuan Riau Islands, Kalimantan, Natuna Besar and southwest Sulawesi, where it is introduced) and Borneo (Brunei Darussalam and Malaysian Borneo). It is absent from Singapore and Phuket. It occurs from lowlands up to 1,200 m asl (and up to 1,400 m asl in Sumatra).

Habitat and Ecology

In Borneo it is apparently confined to the banks of rainforest streams and rivers throughout its life cycle and has been recorded only from heavily forested areas. It has not been reported from disturbed or heavily logged forests. Its larvae live on the bottom of riffles and rapids. In Sumatra and Java it is found in rivers or along small streams in various habitats, from primary rainforest to degraded areas and even near cities. On these islands, the species can tolerate a considerable amount of pollution and is still abundant where other species have disappeared.


Its abundance throughout its range varies greatly. It can be present and abundant, present but uncommon, or absent from forests that appear roughly the same.

Population Trend


Major Threats

In Borneo the destruction of large portions of the lowland forests and the reduction of remaining forests into fragmented mosaic are the principal threats. On Borneo, deforestation has an immediate impact on larval development through the siltation of streams. However, in some other places (especially Java) it breeds in polluted rivers in cities.

Conservation Actions

It occurs in many protected areas. In Borneo the protection of large areas of rainforest in Kalimantan and Sarawak is needed. In Peninsular Thailand and Malaysia this species inhabits almost every protected forest area. It is also protected by the WARPA 1992 law of Thailand.

Red List Status

Least Concern (LC)


Listed as Least Concern in view of its wide distribution and presumed large population.


IUCN SSC Amphibian Specialist Group 2014. Phrynoidis asper. The IUCN Red List of Threatened Species 2014: e.T54579A62062983. .Downloaded on 19 February 2019


IUCN Terms of Use