EXPLANATION OF PLATE 22.
33
| 39—43. | Ph. digiti annularis. |
| 44—47. | Ph. digiti auricularis. |
| 48. | Femur. |
| 49. | Tibia. |
| 50. | Fibula. |
| 51. | Tarsus. |
| 52—56. | Metatarsus. |
| 57, 58. | Phalanges digiti primi. |
| 59—61. | Ph. d. secundi. |
| 62—65. | Ph. d. tertii. |
| 66—70. | Ph. d. quarti. |
| 71—74. | Ph. d. quinti. |
| δ Impressions of the membrane of the wing.[1] | |
Plate 22. V. I. p. 171.
A. Restoration of the Skeleton of Pterodactylus crassirostris. (Goldfuss.)
B. Fore foot of a Lizard. (Cuvier.)
C. Restoration of the right fore foot, or right hand of Pterodactylus crassirostris. (Goldfuss.)
D. The right fore foot, or hand of P. longirostris. (Cuvier and Soemmering.)
E. The Fore foot of P. macronyx. (Buckland, Geol. Trans. Lond. 2d. Ser. Vol. 3. Pl. 27.)
F. The hind foot of a Lizard. (Cuvier, Oss. Foss. Vol. V. Pt. II. PI. XVII.)
G. Right foot of P. crassirostris, as conjecturally restored
- ↑ Professor Agassiz considers that the Corrugations on the surface of the Stone (δ), which Dr. Goldfuss supposed to be the impressions of Hairs, or Feathers, are only casts of the minute foldings of the contracted membrane of the wing. It is probable that Pterodactyles had a naked skin like the Ichthyosaurus; (See Pl. 10. A.) because the weight of scales would have encumbered their movements in the air.
