Notes on adventive Amphipoda (Crustacea, Malacostraca) on the Dutch coast

During the last few years several persons have been paying attention to the animals transported by floating objects (e.g. bunches of weeds and hydroids, corks, mines, floats, etc.). A careful examination of recent finds increased the list of species known of nearly all groups of marine animals, found washed ashore on the Dutch coast, and gave a good notion of the origin of passively transported floating objects on our shores. The present authors, agreeing with IJzerman (1937), Kaas & Ten Broek (1939), Bloklander & Brouwer (1946—’47). Lucas (1950) and several others, in most cases look upon the Channel, the coast of Normandy and the South coast of England as their places of origin.