During the last few years a considerable number of Crocodilian remains have been collected from the Middle and Upper Eocene beds of the Fayûm, most of these specimens having been obtained by Mr. H. J. L. Beadnell in the course of his excavations in that locality. This material has recently been examined and determined, and it is found that several new species belonging to the genera Crocodilus and Tomistoma are represented by more or less complete remains. In the present note it is proposed to give a preliminary account of these new forms, which will be fully described and figured in the Catalogue of the Tertiary Vertebrata of the Fayûm now in course of preparation.