S. Pathak, M. M. Goswami, and N. N. Sarma, “Record of Pillaia indica Yazdani 1972, an endangered earthworm eel (Teleostei: Chaudhuriidae) from the streams of Brahmaputra drainage in Northeast India”, J. Res. Bio, vol. 4, no. 5, pp. 1365-1370, Jun. 2014.