Host-Parasite Relations among the Digenetic Trematodes

Abstract

The activities of digenetic trematodes, at various stages of the life-cycle, which bring them into their hosts, and the routes taken by them to reach the sites of infection are discussed, also the routes of exit of certain larval stages. Each sp. apparently carries on its activities within the broad rules laid down by, and for, its family, but it appears to have developed within this code its own special rules and regulations.