Oreoglanis sudarai is a species of catfish in the family Sisoridae found in the upper reaches of the Ping River drainage, itself a tributary of the Chao Phraya River in northern Thailand. The species was discovered by Vidthayanon, Saenjundaeng and H.H. Ng in 2009. Vidthayanon, C., P. Saenjundaeng and H.H. Ng, 2009. Eight new species of the torrent catfish genus Oreoglanis (Teleostei: Sisoridae) from Thailand. Ichthyol. Explor. Freshwat. 20(2):127-156.
Size This species reaches a length of .
Etymology The fish is named in honor of Surapol Sudara (1939–2003), a Thai marine biologist who was prominent in raising awareness of the conservation of aquatic environments in Thailand.
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