238 
at Grange Burn (“Forsyth’s”), and Muddy Creek (“McDonald’s”); 
also on the Glenelg River; and in the upper part of the borings in the 
Wimmera. In S. Australia, in the upper beds at Aldinga; and in various 
borings in that State. 
The homotaxial equivalents of our Tertiary strata can only be decided 
upon by a comparison of universally distributed organisms; and the group 
of the Cetacea will, no doubt, furnish us with some valuable data in this 
respect. On these grounds the present occurrence of so restricted a form in 
European Tertiary deposits is of the greatest value and interest. It also 
tends to confirm Prof. Sir F. McCoy’s conclusion as to the age of the 
Beaumaris beds, as given in his statement with regard to the discovery 
of Physetodon baileyi , made in 1879 1 , when he referred to “ the ferru¬ 
ginous layers of the older Pliocene Tertiary strata of Mordialloc ” 
(— Beaumaris.) 
Explanation of Plate. 
XL. 
Fig. 1.—Tooth of Scaldicetus macgeei, sp. nov. ; showing large, open 
pulp-cavity. Nearly f natural size. 
Fig. 2. Ditto; showing enamel cap, and cement layer of the basal 
portion revealing the dentine layer beneath. Nearly f natural size. 
Fig. 3. Ditto-; showing the rugosely striated enamel cap, slightly en¬ 
larged. i^j-th natural size. 
{Report sent in 14.1.10.] 
1 Prod. Pal. Viet., Dec. VI., 1879, p, 20. 
I 
By Authority : J. Kemp, Government Printer, Melbourne. 
