Some aspects of the biology of the critically endangered catfish Rita rita (Hamilton, 1822) (Siluriformes: Bagridae) in the Ganges river, Northwestern, Bangladesh - Rajshahi, Author, 2009 - 98 L. 30 cm. Includes bibliography (90-98 L.) Subjects--Topical Terms: Cat fish: Dissertations, Academic Dewey Class. No.: T597.49 S593