The Distribution of the Fauna of Some Intertidal Sands and Muds on the Northumberland Coast

The main object of the investigations was to determine the distribution of the fauna at various levels of the beach at different localities on the Northumberland coast. In addition, some of the more inportant factors of the environment of the animals collected were investigated, partly with the object of discovering what correlation, if any, existed between them and the distribution of the fauna, and partly to determine the existence of any unusual conditions. The consistency of the sand and the salinity and pH of the interstitial water were the main factors examined. The laboratory work connected with the tesearch was carried out at the Cullercoats Dove Marine Laboratory, and I am indebted to Prof. A. Meek, Mr B. Storrow, Dr H. 0. Bull and Mrs Cowan for much encouragement and advice. I am also grateful to Prof. A. D. Hobson for valuable suggestions regarding the preparation of this paper.