34
EXPLANATION OF PLATE 23.
by Dr. Goldfuss. No authority for this seems to be afforded by the fossil specimen N.
H. Right foot P. longirostris. (Cuvier.)
I. Foot of P. macronyx. (Buckland.)
K. Hind foot of a Bat.
L. Skeleton of Draco volans. (Cams. Comp. Anat. P. 370.) showing the elongated bones, or false ribs, which support the membranous expansion of its Parachute.
M. Skeleton of a Bat. (Cheselden.)
N. Skeleton of P. crassirostris, in the Museum at Bonn, in Solenhofen slate. (Goldfuss.)
O. Skeleton of P. brevirostris, from near Aichstadt, in the same slate. (Goldfuss.)
P. Imaginary restoration of Pterodactyles, with a contemporary Libellula, and Cycadites.
Plate 23. V. I. p. 180.
Fig. 1'. Anterior extremity of the right jaw of Megalosaurus, from the Stonesfield slate, Oxon. (Buckland.)
Fig. 2'. Outside view of the same, exhibiting near the extremity, large perforations of the bone for the passage
of vessels. (Buckland.)
Fig. 1. Tooth of Megalosaurus, incomplete towards the root, and seen laterally as in Fig. 1'. Nat. size. (Buckland.)
Fig. 2. Side view of a tooth nearly arrived at maturity. The dotted lines mark the compressed conical cavity,
containing Pulp, within the Root of the growing tooth. Scale two thirds. (Buckland.)
Fig. 3. Tranverse section of Fig. 1'. showing the thickness of the largest tooth (a.) and its root set deep and firmly in the bony socket, which descends
