401 
DESCRIPTION 
OF 
PLATE II. 
Fig. 1. Tlie Os frontis of a species of Crocodile, from Til- 
gate Forest; p. 26 1-. 
2. 4. Teeth of the C uliyidri codon ; p. 292. 
3. Tliree teeth of the Cylindricodon^ placed to illus- 
trate the manner in which the crown of the tooth 
becomes worn aw'ay laterally ; p. 293. 
5. The Os tympani of a reptile, probably of the 
Ignanodon; 305. 
6. The Os frontis of a Saurian animal, described 
p. 305. 
7. The Fibtda, or small bone of the leg of an Iguan- 
odon; the original is 27^ inches long; p. 310. 
8. The Tibia, or large bone of the leg of the same 
individual; the original is 30 inches in length, 
and 22 inches in cii'cumference at the femcn-al or 
upper extremity, and 19 inches at the lower; 
described at p. 310. 
D D 
