PLATE XV. 



Fiys. 1-12. — Axestusbijssinvs. Bonesof one individual, one-half uatural size. Type specimen. Page 116. 



Fig. 1. — Cervic.ll vertebra ; a, from below ; b, posteKor extremity. 



Fig. 2. — Two sacral vortebrie, left side ; a, from above ; b, anterior view of anterior vertebra. 



Fig. 3. — A caudal vortobra ; h, from behind. 



Fig. 4. — Scapular arch, right side, from behind. 



Fig. 5. — HunicniK, from lichind; a, from side. 



Fig. C. — Pelvic arch of left siili-, lacking ischium. 



Fig. 7. — KigUt ilium. 



Fig. 8. — Femur, from within ; a, from side. 



Figs. y-11. — Phalanges. 



Fig. 13. — Po.stabdomiMal bone, from below. 



Figs. 13-1.5. — Eatlrianun aUahiatnn. Type, ime-third natural size. Page 140. 



Fig. 13. — Half of anterior lobe of plastron, from below; a, from above. 



Fig. 14.— Three posterior marginal boneSj from above. 



Fig. 15. — Edge view of left hand of tig. 14. 



