As confirmatory of the Miocene age assigned by me, on other palæontological grounds, to the Tertiary sands on the Southern shores of Victoria, containing the Trigonia semiundulata (M'Coy), I think the accompanying figure (Plate VIII., Fig. 1), of the natural size, of a molar of an Australian species of the mammalian genus Squalodon, may be of interest.

The species is smaller than any of the American Eocene Zeuglodonts, or the Maltese Miocene Squalodon Melitensis, and it differs form them all in the great proportions, length (or depth), and imperfect bifurcation of the root. In the latter, and all other characters, it most nearly agrees with the Squalodon Grateloupi of von Meyer, from the French Miocene beds near Bordeaux.