First Record of Batasio Spilurus Ng from the Siang River of Arunachal Pradesh, Northeastern India (Teleostei: Bagridae)

Batasio spilurus Ng 2006 was described from the vicinity of Dibrugarh, Assam (Brahmaputra River) and its distribution to tributaries of the Brahmaputra River is unknown. Recent collections from the Siang River at Pasighat, Arunachal Pradesh included this species, and hereby reported for the first time. With the record of this species, a total of five species of Batasio are known from the state. A key to the species of Batasio occurring in Arunachal Pradesh has also been provided.