237 
Occurrence and General Remarks. —A few years ago Mr. F. D. MacGee 
obtained the present very interesting specimen of a cetacean tooth from 
the ferruginous and calcareous clays of the Beaumaris Cliffs, a quarter of 
a mile north of the Beaumaris Hotel, and at about 6-10 feet above high 
water mark. This tooth, therefore, came from the midst of the Kalimnan 
series, and not from the basal bed with rolled fossils. 
The shape and size of this tooth is essentially different from that of 
Pliysetodon baileyi, McCoy 1 , teeth of which occur also in the Beaumaris 
Cliffs. It is notably much shorter in proportion than that species, widen¬ 
ing rapidly towards the base; the conical pulp-cavity, as in the living 
Physeter, is hollow. In Scaldicetus the apex is covered by an enamel 
cap, which is grooved longitudinally. This enamel cap is well preserved 
in our specimen, except for the extreme point, which has been broken off. 
The larger portion of the external surface of the tooth is covered by 
the cement. This is in the form of a thin layer, almost uniform, and 
not much thicker in the middle portion of the tooth, the contrary being 
the case in the Belgian genotype; for even quite superficial fractures reveal 
the underlying dark-brown core of dentine. 
Through the kindness of Drs. A. Smith Woodward, F.R.S., and C. 
W. Andrews, F.R.S., my conclusion as to the generic position of the Vic¬ 
torian fossil has been confirmed, these gentlemen having compared a photo¬ 
graph of the present specimen with the British Museum example of 
Scaldicetus. 
Although we have no knowledge of the cranial parts of the animal, 
nor a complete series of teeth, yet I think we may justifiably assign a new 
specific name to the present tooth, on account of its marked difference 
in shape from the Belgium specimens, which are not only half as long 
again, but proportionately much wider at the base. 
Description of Scaldicetus macgeei , sd. nov. Plate XL. 
Tooth. —Present length, 118 mm.; lost height of apex, ch\, 7 mm.; 
greatest width of tooth, at opening of pulp-cavity, 48 mm. ; narrower 
diameter of same, 43 mm. ; extent of root (below enamel cap), 83 mm. ; 
probable height of enamel cap, cir. 42 mm. 
Shape, a stout cone, with a moderate curvature, apical portion more 
strongly curved. Pulp cavity large and deep. Surface of enamel cap 
rugosely, vertically striated, otherwise smooth and shining. Thickness of the 
enamel, revealed at the fractured apex, 1.25 mm. Base of enamel cap 
projecting over surface of dentine cone. The latter dull, and with a 
bony texture, but where fractured beneath the surface, dark brown, shining 
with a resinous lustre. Encircling, wavy bands extend around the basal 
part of the dentine cone. A transverse section through the enamel cap 
would give a subcircular or broadly elliptical figure; that through th? 
pulp-cavity, an irregularly subcircular outline, depressed on the concave 
side of the tooth. 
The holotvpe is named in honour of its discoverer, who has deposited 
it on loan in the National Museum. 
Strati graphical Remarks. —The Beaumaris Cliffs consist of ferruginous 
and calcareous clays, and contain a fauna which is referred to the Kalim¬ 
nan series of \ ictoria. This series also embraces other fossiliferous beds 
in the same State, at Jemmy’s Point, Gippsland Lakes; near Hamilton 
1 Prod. Pal. Viet. Dec. VI. 1879, p. 19, PL LV., Figs. 1, 2. 
