PROFESSOR HUXLEY ON THE OSTEOLOGY OF THE GENUS GLYPTODON. 39 
viz. Glyptodon clavipes, G. reticulatus, and G. ornatus ; a fourth species, G. tulerculatus, 
is based upon purchased specimens, from the Pampas of Buenos Ayres, the precise 
locality of which is not stated. 
The fact that the dermal ossicles of three species of Glyptodon were found in the 
same locality as the bones described, and the absence of any evidence demonstrating the 
association of the ossicles ascribed to G. clavipes, rather than those attributed to the 
other species, with the bones, throws, it will be observed, some doubt upon the certainty 
of that ascription, and opens the question whether the bones really belonged to one form 
of carapace or to another. 
Of the Plates which illustrate the c Catalogue,’ the first contains a side view, partly 
restored, of the Glyptodon clavipes ; the second, views of the carapace and tail ; the 
third, of the skull ; the fourth and fifth, of parts of the carapace ; and the description of 
the Plates comprises accounts of the structure of the skull and of the tail, parts which 
had not been received until after the printing of the body of the catalogue. 
In what locality the skull and the tail were obtained, and upon what evidence they 
are ascribed to the particular species, G. clavipes , is not stated. The lower jaw and the 
defensive bony covering of the skull in plate 1 “ are restored on the authority of an 
original sketch of an entire specimen of this species of Glyptodon transmitted to Sir 
Woodbine Parish from Buenos Ayres.” The bones of the fore foot are given in outline 
after D’Alton. 
On the 8th of June, 1846, the late Johannes Muller read a short paper to the Ber- 
lin Academy upon the bones of the leg and hind foot described by D’Alton, which 
had been worked out and mounted by the help of Professor Owen’s memoir. This 
paper, accompanied by an excellent plate, was published in 1849*. 
The number of the ‘ Comptes Bendus ’ for August 28, 1855, contains a “ Description 
d’un nouveau genre d’Edente fossile renfermant plusieurs especes voisines des Glypto- 
dons, et classification methodique de treize especes appartenant a ces deux genres,” by 
M. L. Nodot, Director of the Museum of Natural History at Dijon; and this essay, 
enlarged and illustrated with plates, appeared two years later in the 4 Memoires de 
l’Academie Imperiale de Dijon,’ Deuxieme Serie, tom. v. 1857f. 
M. Nodot, in his introductory remarks, states that Vice-Admiral Dupetit brought 
back from Monte Video, in 1846, a great number of fossil bones which had been 
collected by Dr. Numez on the banks of the river Lujan, and were given to the 
Vice-Admiral by the orders of the Dictator Rosas. Admiral Dupetit presented most 
of these remains to the Museum of the Jardin des Plantes in Paris ; but dying before 
* “ Bemerkungen fiber die Fussknoehen des fossilen Giirtelthiers ( Glyptodon clavipes, Ow.),” Abhand- 
lungen d. Konigl. Akad. d. Wissenschaften, 1849. 
t Under the title “ Description d’un nouveau genre d’Edente fossile renfermant plusieurs especes voisines 
du Glyptodon, suivie d’une nouvelle methode de classification applicable a toute l’histoire naturelle et speciale- 
ment a ces animaux. Avec un atlas de douze planches lithographiees.” 
MDCCCLXV. H 
