i 
g. 
1. Entosternal. 
2. Episternal, under side. 
2. Ditto, upper side. 
3. Part of right hyosternal, and the hyposternal, under or outer side. 
0 Ditto, and ps, ditto, upper side. 
4. Two views of the scapula (51), and connate acromial clavicle (58) ; 4" shows the 
PLATE 28. 
Trionyx incrassatus. 
The parts are figured half the nat. size. 
osseous structure of the end of the scapula, nat. size. | 
5. The coracoid. 
6, 6'. Two views of the ilium. 
7, 7. Two views of the femur. 
8, 8. Two views of an ungual phalanx, nat. size. 
9. Under view of the sixth cervical vertebra ; y, y, the hypapophyses. 
9. Upper view of the same vertebra ; c, the anterior convex articular surface of the 
centrum; 2, the neural arch; z, 2, the zygapophyses (oblique or articular 
processes). 
9”. Back view of the same vertebra, showing the double concavity of the articular 
surface. 
