J. R. Griffiths has been working on a revision of this genus for the past year and he has supplied us with the following notes on the species recorded from Victoria. The chief features which distinguish the Victorian species of Notocypraea are the colour and markings of the dorsum, and the shape and teeth of the fossula. Other differences exist between the species, but they are to a great extent masked by the considerable variation within each species, and are therefore only of small diagnostic value. These main distinctions are themselves subject to variation, and occasional specimens are found which cannot be identified even by these means; in these cases the shape of the radula is the only satisfactory criterion.