20 MR. A. L. ADAMS ON THE OSTEOLOGY OF 
The entire lower molar, no. 44, of which the accompanying woodcut (fig. 3) and its 
crown view (Pl. IV. fig. 3) will give a good idea, contains eleven ridges in 3 inches. 
The talons here are mere appendages. ‘The crown, like that of the last milk-molar of 
E. melitensis (Falc.), is long and narrow, the disks are also rhomboidal, with little, even, 
faint crimping; the central angulations, however, as usual, are apparent. Indeed, 
in regard to dimensions, this tooth might fairly claim to be the lower molar of Pl. I. 
figs. 10 & 17, and of the upper tooth described by Busk. 
C Series.—The two left lower molars, No. 66 (PI. VI. figs. 5 & 5a) and No. 67 (Pl. V. 
fig. 2), are precisely of the same type. They differ, not only in size but in configura- 
tion and other characters, from any preceding lower molars. The entire specimen 
No. 66 (PI. VI. fig. 5) contains eleven ridges in 4-2 inches. Unlike No. 44 (PI. IV. fig. 3), 
the crown is much arcuated, and instead of being narrow in front is broad and rounded on 
the internal border and narrows posteriorly. The plates, moreover, are thicker, being 
0-34 instead of 0°3 inch. Indeed, altogether the tooth has very much the aspect of 
a true molar. The crown, like the other, is long and narrow; and the discal pattern 
(Pl. VI. fig. 5a) shows the pronounced expansions and angulations’, with very little faint 
crimping and numerous digitations. ‘The enamel is not thick; but the plates are large 
as compared with No. 44 (Pl. IV. fig. 3). 
The septum (a, fig. 5) still remains; but as the crown was just being invaded, we 
should not expect the next tooth to have made great progress; however, the slope on 
the back part shows there was pressure being exerted. 
The entire and remarkable upper molar described by Falconer as either the first or 
the second true molar of his Elephas melitensis’, holds eleven ridges in three inches. At 
first sight one would be disposed to place it in the D series, with the molars referred 
to the last milk-teeth of the largest form, which it and the specimen in my collection, 
No. 24 (Pl. Il. fig. 9) closely resemble, but only in the crown-pattern’. 
The latter contains only seven of the anterior ridges, the remainder having been lost. 
As far as the specimen goes, however, it may be called a fac simile of the Zebbug tooth. 
They differ from the last milk-molar above mentioned in the greater breadth of crown 
and great height of ridges, which, however, are not nearly so thick, there being, for 
instance, five ridges in 1-4 inch in Pl. II. fig. 9, whereas there are only four in the same 
space in Pl. III. fig. 4. 
The profusion of the digitations is noteworthy, as they are especially plentiful on the 
collines of all the thin-plated milk- and true molars. Altogether these teeth appear to 
‘ The central rib or ribs which give this feature to the crown are more pronounced in some specimens than 
in others, and more especially in those referable to the smallest form. See Pl. II. fig. 5, where these ridges 
are seen side by side in a plate of an analogous tooth to the above. 
? Vol. vi. pl. 53. figs. 9 & 9a. 
* Compare my specimen (Pl. II. figs. 9 & 9a) and Falconer’s figures 9 & 9a with the disks of Pl. IV. fig. 2a 
and Pl. IIL. fig. 4. 
