Twelve of frogs were collected from small streams in the Khlong Yai District, Trat Province by a team from the Thailand Natural History Museum (THNHM) during February and April, 2009. The morphological characteristics are identical to the description of Limnonectes kohchangae (Smith, 1922). The type locality of this species is Koh Chang in the Inner Gulf of Thailand. The discovery of this new location, confirms the distribution of this species on the mainland.