242 ROYAL SOCIETY OF CANADA 
Puate LY. 
Figure 11.—Left jugal, exterior aspect; 114, the same, interior aspect. 
Natural size. À 
1, suture for lachrymal; mx, suture for maxilla; pb, base of post- 
orbital bar; tpl, suture for transpalatine. 
Figure 12.—Dorsal vertebra, side view; 12a, the same, front view. 
Natural size. 
a.f, anterior face of centrum; tp, transverse process; 2, prezygapo- 
physis; z, postzygapophysis. 
Figure 13.—Second sacral vertebra, back view; natural size. 
. 4 . 
p.f, pesterior face of centrum; s.r, sacral rib; z, postzygapophysis. 
