Thai National Parks

Species of Thailand

Karin horned toad

Brachytarsophrys carinense

George Albert Boulenger, 1889

In Thai: อึ่งกรายข้างแถบ

Brachytarsophrys carinense (common names: Burmese horned toad, Karin Hills frog, and many others) is a species of frog in the Megophryidae family. It is now understood to include Brachytarsophrys platyparietus of China. Defined this way, its distribution area includes southern Myanmar and the adjacent Thailand and southern China.


Brachytarsophrys platyparietus Rao & Yang, 1997 is now considered a synonym of Brachytarsophrys carinense. This taxon represented the Chinese component of the present B. carinense. In 2004 the International Union for Conservation of Nature assessed Brachytarsophrys platyparietus to be of "Least concern".


Brachytarsophrys carinense are large frogs, particularly females: males grow to about 89 mm and females to about 137 mm in snout-vent length. Tadpoles are small in comparison, up to 42 mm in length.

Habitat and conservation

Brachytarsophrys carinense are associated with forest streams where also the larvae develop. In China it is common where it occurs, whereas in Myanmar and Thailand it is considered to be uncommon to rare.

The species is widespread and there are no major threats, but it is potentially threatened by habitat loss. In China it is collected for local consumption, but at present this is not a major threat.

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Scientific classification

Brachytarsophrys carinense

Common names

  • English:
    • Karin horned toad
    • Burmese horned toad
    • Burmese horned frog
    • Karin Hills frog
  • Thai: อึ่งกรายข้างแถบ


  • Brachytarsophrys platyparietus, Ding-Qi Rao & Da-Tong Yang (1997)
  • Brachytarsophrys carinensis, George Albert Boulenger (1889)
  • Leptobrachium carinense, George Albert Boulenger (1889)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


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Brachytarsophrys carinense

Range Map

Distribution map of Karin horned toad, Brachytarsophrys carinense in Thailand
  • Doi Suthep - Pui National Park
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan National Park
  • Khao Nan National Park
  • Khao Sok National Park
  • Suan Phueng District, Ratchaburi
  • Thung Yai Naresuan Wildlife Sanctuary
Range map of Brachytarsophrys carinense in Thailand