XXI.—Studies in the Scottish Marine Fauna. — The Crustacea of the Sandy and Muddy Areas of the Tidal Zone

Abstract

Summary1. An attempt is made to indicate the quantitative distribution of the Crustaceans inhabiting certain Scottish intertidal areas.2. Certain areas in the Clyde, notably Cumbrae, show a rich Amphipodan fauna which exhibits zoning by species.3. Bathyporeia guilliarnsoniana is the dominant amphipod on the Tellina-Nephthys grounds (clean sand) and Corophium volutator is indicative of a muddy to brackish environment.