Thai National Parks

Species of Thailand

Mabled torrent frog

Amolops marmoratus, Edward Blyth, 1855

(In Thai: กบลายหินเหนือ)

Amolops marmoratus is a species of ranid frog found in Asia. Its common names include marbled sucker frog, marbled cascade frog, Pegu torrent frog, and many others. The taxonomic status of many populations formerly assigned to this species, or species now considered as its synonyms, is uncertain.

Distribution and habitat

Amolops marmoratus is only known with certainty from Myanmar and likely from northern Thailand, though it may occur more widely. For example, International Union for Conservation of Nature (IUCN), using a less stringent delineation of the species, reported the species also from Bangladesh, Bhutan, China, India, and Nepal. While IUCN in its assessment in 2004 considered Amolops marmoratus to be of "Least Concern" in view of its wide distribution and presumed large population, recognizing higher biodiversity within the species warrants further assessment of its conservation status.

As is typical for the genus Amolops, Amolops marmoratus lives near fast-flowing mountain streams.


Amolops marmoratus shows a pronounced sexual dimorphism in size: males grow to snout-vent length of 38 - 48 mm and females to 70 - 79 mm. It is a relatively small species among Amolops.

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Scientific classification

Amolops marmoratus

Common names

  • English:
    • Mabled torrent frog
    • Marbled sucker frog
    • Northern torrent frog
    • Northern cascade frog
  • Thai: กบลายหินเหนือ


  • Amolops nepalicus, Da-tong Yang (1991)
  • Rana senchalensis, Shyamal Kumar Chanda (1987)
  • Rhacophorus (Philautus) argus, Christoph Gustav Ernst Ahl (1931)
  • Rana (Hylorana) latopalmata, George Albert Boulenger (1920)
  • Ixalus argus, Nelson Annandale (1912)
  • Rana latopalmata, George Albert Boulenger (1882)
  • Polypedates (?) marmoratus, Edward Blyth (1855)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


No photo for this species yet

Range Map

Distribution map of Mabled torrent frog, Amolops marmoratus in Thailand
  • Doi Inthanon National Park
  • Doi Suthep - Pui National Park
  • Huai Kha Khaeng Wildlife Sanctuary
  • Taksin Maharat National Park
  • Umphang District, Tak
Range map of Amolops marmoratus in Thailand