256 
Teeth of a nearly similar form, but of much less magnitude, are 
also frequently found. It is difficult to say whether these have 
belonged to young animals of the same species as those which bore 
the teeth just described, or to animals specifically distinct. The 
circumstance, however, of the vast difference in size, leads me to 
believe the latter to be the case. Plate XIX. Fig. 2 and 9, represent 
some of the smaller specimens of triangular teeth. 
The straight conical glossopetrae have been supposed to resemble 
the tongue or beak of a raven, and have been named Ornithoglossee 
and Grazirrhinchi. These appear to have belonged to fish approxi- 
mating very nearly to those to which the preceding teeth have 
belonged. Scilla, who carefully examined the fossils of this descrip- 
tion, supposed these fossil teeth to have belonged to that species of 
shark which the Messinese have named Stampella, ( Squalus zygena, 
Linn.) the balance-fish, of which fish he gives a correct figure, as 
well as three figures of the accordant fossil teeth, so frequently found 
at Malta*. A representation of a fossil tooth from Malta, of this 
species, is given Plate XIX. Fig. 2. 
The fossil tooth from the Kentish chalk-pits, Plate XIX. Fig. 3, 
very much accords with the description of the teeth of the Squalus 
galeus, Linn. Its length hardly exceeds its width ; and its point is 
so much inclined to one side, as to form a notch on that side. The 
edges are very finely serrated. The teeth of the Squalus mustelus, 
according to M. Cuvier, agree in form with the preceding, but are 
scarcely at all jagged on their internal edge. It seems to be to this 
species that the teeth named Acanthiodontes, and figured by Lhwydd, 
No. 141^, may be referred. 
The fossil tooth, Plate XIX. Fig. 5, rising into a sharp simple point, 
with a small point on each side, projecting immediately from the root, 
resembles, in these characters, the teeth of the Squalus cinereus. All 
* De Corp. Marin. Lap. Tab. xxvm. Fig. n. in. 
