Plate II 
Corythosaurus excavatus Gilmore. Plesiotype No. 8676, Geol. Surv., Canada. 
Figure I. Articulated dentaries and predentary with impression of horny beak. 
H.B. \ natural size. (Negative No. 77488.) 
Figure 2. Inferior view of predenfeary and tips of dentaries. % natural size. 
(Negative No. 77524.) 
Figure 3. Dental magazine, internal view, f natural size. (Negative No. 77524.) 
