EXPLANATION OF THE PLATES. 



Plate L The Quadrupeds of this plate are suflicieritly 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. I, 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 III and IV. The Birds of this plate are sufficiently 

 described in the text under their respective genera. 



Vol. I. 3 G 



