236 
Portion of (?) jugular plate.—No. 1942, 1967. 
Fragments.—No. 2011. 
Fish remains, indet.— 1943, 1956, 1961, 1974, 1981, 1987, 1988, 
2005-2008, 2012. 
Explanation of Plate. 
XXXIX. 
Fig. 1.—Scale of Ceratodus (?) avus , A. S. Woodward. About nat. 
size. 
Fig. 2.—Portion of basal area of scale of Ceratodus (?) avus , showing 
arrangement of minute granules of enamel, x 4. 
Fig. 2 a.—A group of the smaller tubercules highly magnified, x 52. 
Fig. 3.—Part of border of distal half of scale of Ceratodus 
( ii)avus, showing depressed ridges and division of area by fissures. x 4. 
Fig. 4.—Fragmentary lamina of Tceniopteris spaiulata, var. Daintreei, 
McCoy, found on same slab with the Ceratod.us scale, x 2. 
Fig. 5.—A fragmentary branch of Palissya australis , McCoy, in which 
the leaves are turned edgewise to the plane of the slab, and the stem, with 
petiole bases are imperfectly preserved. Found associated with scale of 
C eratodus. X 2. 
[Refort sent in 5.12.08.'] 
ON THE OCCURRENCE OF SCALDICETUS IN VICTORIA. 
By Fredk. Chapman , A.I.S., &C., Palaeontologist to the National 
Museum , Melbourne. 
Note on the Genus. —The genus Scaldicetus was established in 1867 by 
Du Bus 1 , for a type of cetacean tooth of the family of the Sperm V hales 
{Physeteridae). The diagnosis of the genus is thus given in the British 
Museum Catalogue by R. Lydekker 2 , quoting from Du Bus’ original 
description. u The teeth are somewhat smaller than those of 
Physeter macrocephalus, and are distinguished by a coat of grooved enamel 
on the summit of the crown. The section of the tooth is subcircular ; 
the cement is abundant and much thicker in the middle than at the two 
extremities, thus causing the tooth to be fusiform; the dentine core is sub- 
cylindrical throughout the greater part of the tooth; and the central axis 
of dentine very slender, darker in colour than the overlying layer, and 
without a nodular structure. In the young specimens the pulp cavity is 
open and conical in shape.” 
Du Bus’ type specimen was named Scaldicetus carreti; it was found 
in the Antwerp Crag (Lower Pliocene), at Borgerhout, Belgium, and is 
preserved in the Museum at Brussels. There is a cast of one of the 
teeth in the British Museum (Nat. Hist.), M. 3658. The original specimen 
consists of a series of 45 associated teeth, evidently belonging, says Du 
Bus, to the same individual. Their lengths vary from 20-24 cms., and 
their largest circumference between 40 and 53 cms. They are elongated 
cones, a little narrower towards the base, gently curved, principally to¬ 
wards the crown, of which the enamel is longitudinally striated. They 
are excavated at their base for two-thirds or three-quarters of their length. 
The weight of the largest is a kilogramme and a half 3 . 
1 Bull. Ac. E. Belg., ser. 2, vol. XXIV., p. 568. 
2 Cat. Foss. Mammalia in the Brit. Mus. (Nat. Hist.), pt. V., 1887, p. 57. 
3 Op. supra cit., p. 567. 
