1046 
PROFESSOR OWEN ON SOME REMAINS OF THE 
“ supra-nasal horn” in Megalama (Plate 38, fig. 1, d). The larger horns in Moloch 
(Plate 37, fig. 2, h) curve obliquely outward and backward; the “post-orbital” (c) and 
“ nasal ” (cl) horns are vertical: both are short. Moreover, in Moloch a pair of horns 
of intermediate size, but broad basally in proportion to their height (ib., fig. 2, a), 
stand upright, their bases touching each other above the occiput. There is not such 
good ground for homologising these with the “ supra-parietal pair” (ib., fig. 1, f f), 
but the extension in breadth of the summit of these horn-supporters in Megalania is 
notable in relation to this comparison. 
The occipital segment of the skull had not come to hand at the date of Mr. 
G. F. Bennett’s discovery and transmission of the parts above described; but the 
previous acquisition of that cranial vertebra (Plate 36, figs. 1 and 2), by M. St. Jean, 
of another Megalania, in a different locality, has enabled me to show, in the free 
tuberous termination of the superoccipital spine (ib., ns) and the restricted attach¬ 
ment by confluence in other elements with the cranial segment in advance, characters 
which are more closely repeated in the skull of Moloch (ib., fig. 5) than in other 
Lacertian subjects of comparison. 
Moreover, in the skull of Moloch (Plate 37, figs. 3, 4, 5) a single edentulous pre¬ 
maxillary ( 22 ) is sheathed with horn. It is relatively smaller than the similarly 
edentulous upper jaw-bone of Megalania, and the retained sutures in the small horned 
Lizard show the articulation at each side-end of (22) with a maxillary (21). The pre¬ 
maxillary sends up a short medial process which partially divides the single external 
nostril (ib., fig. 5, ol), but does not reach the nasal (is). This bone forms, as in 
Megalania, a broad, mainly horizontal platform, uniting behind with a similarly broad 
mid-frontal, and laterally with the nasal process of each maxillary (ib., fig. 5, 21 ) and 
with a portion of each pre-frontal ( 14 ). 
Each maxillary in Moloch supports a single series of minute teeth, acrodont in 
attachment, slightly increasing in size as they recede in position. These denticles are 
close set, 20 in number in each maxillary. The malar is broad, ascends obliquely 
backward to join the post-frontal, and, by a short slender process, combines with a 
short and broad squamosal to bound the temporal fossa (ib., t). A small mastoid 
and the posteriorly-produced angles of the parietal form the joint for abroad tympanic 
(ib., fig. 4, 2 8). 
There is a small transverse vacuity between the parietal and frontal representing the 
“ foramen parietale a pair of similar “ fontanelles ” open between the parietal and 
super-occipital, the division being partially made by the anteriorly-produced tuberous 
occipital spine (fig. 3, 3). The palatonares (ib., fig. 4, n) are small and anterior, 
divided by transversely-extended palatines from the large]- pterygo-maxillary vacuities 
(y) behind. The parietal develops a pair of short conical processes or “cores” for the 
support of the vertical horns (fig. 5, e, c). There is no such jirocess for the single 
nasal horn (rt). 
In the skeleton of Moloch horridus (ib., fig. 9) there are 21 vertebrae between the 
