[031]
PLATE 21. V. I. p. 221.
Pterodactylus longirostris in the lithographic slate of Aichstedt. (Cuvier
and Goldfuss.)
In this Plate, and Plate 22, the same letters and figures designate
the corresponding Bones in the different Animals to which they are affixed;
they are copied chiefly from the figures and Explanations of Dr. Goldfuss,
in his Beiträge zur Kenntniss verschiedener Reptilien der Vorwelt.
. Cavitas
narium.
. Cavitas
intermedia.
. Orbita.
a. Maxilla superior.
b. Vel os nasi vel inter-maxillare?
c. Operculum nasale.
d. Aut os frontis anterius vel nasale?
e. Os frontis proprium.
f. Os parietale.
g. Os petrosum.
H. Pars basilaris ossis occipitis.
h. Pars lateralis.
i. Os tympanicum s. quadratum.
k. Os frontis posterius.
l. Os mastoideum.
m. Os zygomaticum.
n. Aut os lacrymale vel superciliare?
o. Annulus orbitalis.
P. Corpus ossis sphenoidei.
p. Processus transversus ossis sphenoidei.
q. Os pterygoideurn. [032]
r. Os transversum.
s. Os palatinum.
t. Processus palatinus maxillæ superioris.
v. Pars angularis inferior maxillæ inferioris.
w. Pars angularis superior.
x. Pars condyloidea.
y. Pars complementaria, Cuv. (coronahis, auctor.)
z. Os hyoideum.
|
I.
|
Atlas |
|
II.
|
Epistropheus. |
|
III—VII.
|
Vertebræ colli. |
|
VIII—XXII.
|
Vertebræ dorsi. |
|
XXIII. XXIV.
|
Vertebraæ lumborum. |
|
XXV. XXVI.
|
Os sacrum. |
|
XXVII.
|
Ossa coccygea. |
|
XXVIII.
|
Sternum. |
|
1—15.
|
Costæ |
|
16.
|
Scapula. |
|
17.
|
Os coracoideum. |
|
18.
|
Ilium. |
|
19.
|
Os pubis. |
|
20.
|
Os ischium. |
|
21.
|
Humerus. |
|
22.
|
Ulna. |
|
23.
|
Radius. |
|
24.
|
Carpus. |
|
25.
|
Os metacarpi primum s. pollicis. |
|
26.
|
O. m. secundum. |
|
27.
|
O. m. tertium. |
|
28.
|
O. m. quartum. |
|
29.
|
O. m. quintum. |
|
30, 31.
|
Phalanges pollicis. |
|
32—34.
|
Ph. indicis. |
|
35—38.
|
Ph. digiti medii. [033] |
|
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. |
|
|
Impressions of the membrane of the wing? * |
——————
* Professor Agassiz considers that the Corrugations on
the surface
of the Stone (
),
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.