Thai National Parks

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Reptiles of Thailand

Species of Thailand

Burmese peacock softshell

Binomial name: Nilssonia formosa, John Edward Gray, 1869

The Burmese peacock softshell turtle (Nilssonia formosa) is a species of softshell turtle in the Trionychidae family. It is considered to be the one of five species in the genus Nilssonia

Geogrphical region

The Burmese peacock softshell is found in Burma and possibly Thailand.

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Scientific classification

Nilssonia formosa

Common names

  • English: Burmese soft-shelled turtle


  • Nilssonia formosa, Peter Praschag et al. (2007)
  • Nilssonia formosa, Gerald Kuchling et al. (2004)
  • Trionix formosus, Enrique Richard (1999)
  • Trionyx formosanus, Jenkins (1995)
  • Trionyx fomosus, Jerzy Gosławski & Adam Hryniewicz (1993)
  • Nilssonia formosa, Carl Henry Ernst & Thomas Barbour (1989)
  • Trionyx formosus, David Alderton (1988)
  • Amyda formosa, Robert Mertens, Lorenz Müller & Rust (1934)
  • Trionyx grayi, Malcolm Arthur Smith (1931)
  • Amyda formosus, R. Mell (1929)
  • Trionyx formosa, H. Gadow (1923)
  • Isola formosa, Oliver Perry Hay (1904)
  • Aspidonectes formosus, Georg Baur (1893)
  • Trionyx formosus, George Albert Boulenger (1889)
  • Trionyx grayii, William Theobald (1875)
  • Isola peguensis, John Edward Gray (1873)
  • Nilssonia formosa, John Edward Gray (1872)
  • Trionyx peguensis, John Edward Gray (1870)
  • Trionyx formosus, John Edward Gray (1869)

Conservation status

Endangered (IUCN2.3)

Endangered (IUCN2.3)

Burmese peacock softshell (nilssonia formosa)

Burmese peacock softshell (nilssonia formosa)

Public domain

Range map of Nilssonia formosa in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

It is free to use this map on various media. See the creative common license terms by clicking "CC" icon below the map. But remember, again; the map may not be accurate or complete.

Contribute or get help with ID

Please help us improving our species range maps. To add a new location to the range map we need a clear image of the specimen you have encountered. No problem if you do not know the species, we will do our best to identify it for you.

For the location, please provide the district name or the national park/ wildlife sanctuary name.

Please post your images to our Thai Biodiversity Survey & Species ID group on Facebook.