Ayyar, M. Ekambaranatha, and Ananthakrishnan, T. N. A Manual of Zoology : Vol. II, Part - II (Chordata) - Chennai S. Viswanathan (Printers & Publishers), Pvt. Ltd. 1981 - 879 ISBN: 9788187156680 Publisher. No.: Ananda Book Depot Chennai Subjects--Personal Names: Zoology Subjects--Topical Terms: Zoology