EXPLANATION OF THE PLATES. 
Plate I. The Quadrupeds of this plate are sufliciently de- 
scribed in the text, for which refer to the genera by the Index. 
Plate II. This plate exhibits the osteology of the head of 
two anomalous Mammalia. 
Fig. 1, 2,3... The Aye-Aye (Cheiromys, C.), which, with the 
teeth of the Rodentia, possesses a head very similar to that of 
the Quadrumana, and principally as relates to the zygomatic 
arch, the orbit, &c. 
Fig. 4, 5,6. The Phascolomys, which also has the teeth of 
the Rodentia united to a head very analogous to that of the 
Carnaria, and evidently closely allied to that of the Phalangers. 
Plates II and IV. The Birds of this plate are sufliciently 
described in the text under their respective genera. 
VoL. l.—3 G 
