62 ENTOMOPHAGA. 
original describer, and which is figured at the head of the 
present section, the Marsupial characters are more strongly 
manifested in the general form of the jaw, and in the extent 
and position of its inflected angle; while the agreement with 
the genus Didelphys in the number of the premolar and molar 
teeth is complete. 
The form of the crowns of these teeth corresponds, how- 
ever, so closely with that which has been described in the 
Amphitherium Broderipii, as to argue strongly for their 
close natural affinity ; and accordingly whatever additional 
approximation to the Marsupial Order is made by the Phas- 
colotherium, may be held to support the Marsupial nature of 
the Thylacotherium although the proof be yet absent. 
Respecting the jaw of the Phascolotherium, — ‘‘ Some 
years have elapsed,” writes my friend Mr. Broderip, in 
1828, “‘ since an ancient stone-mason, living at Heddington, 
who used to collect for me, made his appearance in my 
rooms at Oxford, with two specimens of the lower jaws of 
mammiferous animals, imbedded in Stonesfield slate, fresh 
from the quarry. At the same time he brought several 
other very fine Stonesfield fossils, the result of the same 
trip. One of the jaws was purchased by my friend Pro- 
fessor Buckland, who exclaimed against my retaining both, 
and the other I lent to him some time ago. Dr. Buckland’s 
specimen, which wants incisor and canine teeth, has been 
examined by M. Cuvier, and is figured by M. Prevost as 
an illustration to his ‘‘ Observations sur les Schistes caleaires 
Oolitiques de Stonesfield en Angleterre,” &c.,* the other 
was lost, after the Professor had returned it; and the loss 
was, most unjustly as I must now acknowledge, attributed 
to him. To my no small gratification, this specimen has 
* Ann. des Sciences, Nat. Avr. 1825. 
