Male paratypes of Ansonia karen sp. nov. in dorsal (upper row) and ventral (lower row) views from Suan Phueng District, Ratchaburi Province, western Thailand. A. ZMMU A-7607. B. ZMMU A-7606. C. ZMMU A-7608. D. AUP-00661. E. AUP-00662. Photos by N. A. Poyarkov.

  Part of: Suwannapoom C, Grismer LL, Pawangkhanant P, Naiduangchan M, Yushchenko PV, Arkhipov DV, Wilkinson JA, Poyarkov NA (2021) Hidden tribe: A new species of Stream Toad of the genus Ansonia Stoliczka, 1870 (Anura: Bufonidae) from the poorly explored mountainous borderlands of western Thailand. Vertebrate Zoology 71: 763-779.