Citation:Weerasundara, G.A., Pathiratne, A. and Costa, H.H. 1996. Composition, abundance and distribution of aquatic Oligochaeta in Colombo (Beira) Lake. Proceedings of the 10th Annual Scientific sessions of the Sri Lanka Association for Fisheries and Aquatic Resources, Sri Lanka Association for Fisheries and Aquatic Resources, Colombo, Sri Lanka. (Abstract) p. 06.