Thai National Parks

Species of Thailand

Kokarit frog

Pelophylax lateralis, George Albert Boulenger, 1887

(In Thai: เขียดหลังไพล)

Pelophylax lateralis is a species of frog in the Ranidae family. It is found in Cambodia, Laos, Myanmar, Thailand, and Vietnam. It is commonly known as Kokarit frog, yellow frog or (ambiguously) wood frog.

Placed in Rana when this was still loosely circumscribed, it was since assigned to the "water frog" genus Pelophylax. However, it is not clear whether this is the most appropriate treatment, and the Kokarit Frog might rather belong in Hylarana. The supposed species Rana nigrolineata was recently determined to be a junior synonym of "P." lateralis.

Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, subtropical or tropical dry lowland grassland, moist shrubland, plantations, swamps, freshwater marshes, intermittent freshwater marshes, ponds, and seasonally flooded or irrigated agricultural land. It is not considered threatened by the IUCN.

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Scientific classification

Pelophylax lateralis

Common names

  • English:
    • Kokarit frog
    • Yellow frog
  • Thai:
    • เขียดหลังไพล
    • กบหลังไพล


  • Rana nigrolineata, Liu & Hu (1960)
  • Pelophylax lateralis, George Albert Boulenger (1887)
  • Hylarana lateralis, George Albert Boulenger (1887)
  • Rana lateralis, George Albert Boulenger (1887)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


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Pelophylax lateralis (green morph)
Pelophylax lateralis (yellow morph)
Pelophylax lateralis (yellow morph)
Pelophylax lateralis (greenish morph)
Pelophylax lateralis (brown morph)
Pelophylax lateralis (brown morph)

Range Map

Distribution map of Kokarit frog, Pelophylax lateralis in Thailand
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan District, Phetchaburi
  • Kaeng Krachan National Park
  • Mae Wong National Park
  • Mueang Loei District, Loei
  • Nong Phai District, Phetchabun
  • Prachantakham District, Prachinburi
  • Sakaerat Environmental Research Station
  • Thung Salaeng Luang National Park
Range map of Pelophylax lateralis in Thailand