Synonyms: Macrognathus armatus: Lacepede, 1803; Hamilton, 1822. Mastacembelus armatus: Day, 1878; Shaw and Shebbeare, 1937; Bhuiyan, 1964; Day, 1889; Gunther, 1961; Ahmad, N. 1943. Mastacembelus manipurensis: Hora, 1921a. Common name: Tire-track spiny eel (English). Bangla name: Baim, Bam,