GALLERY.] NATURAL HISTORY. 125 
mams') : all from the lias of Lyme Regis;—a new small 
species (Ichthyosaurus latifrons), in which the spiracle 
on the top of the head, between the eyes, claims particular 
attention : this specimen was found at Balderton in the 
county of Nottingham, twelve feet under the surface, about 
three miles and a half south of Newark-upon-Trent, near 
the drain*dividing the counties of . Lincoln and Notting¬ 
ham : presented by Dr. Bland.—From nearly the same 
locality is the specimen here deposited of a species of ple- 
, siosaure, an account and figure of which have been given 
in the Philosophical Transactions for 1719, by Mr. Stukely, 
j who took it for a crocodile. A very perfect specimen, 
with head exhibiting the teeth, of the long-necked plesio- 
saure (Plesiosaurus dolichodeirus of Conybeare) from 
Lyme Regis; and another, apparently specifically distinct, 
plesiosaure (as likewise a cast of the same, with restora¬ 
tions) from Street in Somersetshire. 
As illustrative of the natural order of Chelonid^e, we 
' have some interesting specimens, chiefly from the isle of 
Sheppey, and the coast of Essex. 
The only fossil species of the Batrachi an Reptiles in this 
: collection is the gigantic Salamander, the subject of worthy 
Scheuchzer’s dissertation. Homo diluvii testis et theoscopos . 
Tiguri, 1726 . 
The two upright Glass Cases of the western wall of the 
centre compartment contain osseous remains (both original 
and in plaster casts) of the orders Edentata and Pachy- 
dermata. To the former of these the Megatherium (M. 
Cuverii ) is generally referred, of which the casts here depo¬ 
sited, though constituting only a small portion of the whole 
skeleton, are sufficient to convey an idea of the consider¬ 
able dimensions of this animal.—Among the specimens of 
the last mentioned natural order, may be specified the 
casts, chiefly of the lower jaw, of two species of that ex¬ 
traordinary genus the Deinotlierium, lately discovered 
in Bavaria, some of the teeth of which were known to 
Cuvier, who supposed them to belong to gigantic tapirs; 
—jaws, tusks, molar teeth, and other osseous parts of the 
elephant (Elepuas primigenius oi Blumenbach), especially 
those of the Siberian variety, which is the Mammouth of 
early writers : a name erroneously transferred to the gi¬ 
gantic Mastodon (Mastodon ohioticus). There are va« 
