80-84Thirty two species of harpacticoid copepods were recorded, and Pseudostenhelia secunda was an ubiquitous species in the intertidal mudflats of the estuary. Mean highest density of harpacticoid copepods was recorded at a station in a mangrove biotope. The diversity in the copepod communities was high in the lower reaches and low in the upper reaches of the estuary. The similarity in the harpacticoid copepod fauna between various stations in the estuary is discussed