Ayyar, M.Ekambaranatha. and Ananthakrishnan, T.N. A Manual of Zoology Volume I (Protozoa to Annelida) - Madras S.Viswanathan (Printers & Publishers) Pvt.Ltd. 1954 - 466 Publisher. No.: Anjana Book Distributors Subjects--Personal Names: Zoology Subjects--Topical Terms: Zoology