Synonyms: Cyprinus calbasu: Hamilton-Buchanan, 1822. Labeo calbasu: Day, 1878; Shaw and Shebbeare, 1937; Bhuiyan, 1964; Macdonald, 1948. Common name: Kalbasu, Black rohu (English name) Bangla name: Kalbaus, Baus, Kalia Taxonomic position: Phylum: Chordata Class: Osteichthyes Order: Cypriniformes