374 PBO.F. ST. GEOKGE MIVAKT ON THE 



PLATE LVI. 



VERTEBRA OF Sula. 



Fig. 1. Atlas vertebra, seen preaxially. 

 Fig. 2. Atlas vertebra, seen laterally. 

 Fig. 3. Axis vertebra, seen laterally. 

 Fig. 4. Third vertebra, seen laterally. 

 Fig. 5. Fifth vertebra, seen ventrally. 

 Fig. 6. Sixth vertebra, seen laterally. 

 Fig. 7. Sixth vertebra, seen dorsally. 

 Fig. 8. Sixth vertebra, seen ventrally. 

 Fig. 9. Seventh vertebra, seen laterally. 

 Fig. 10. Seventh vertebra, seen dorsally. 

 Fig. 11. Seventh vertebra, seen ventrally. 

 Fig. 12. Seventh vertebra, seen preaxially. 

 Fig. 13. Eighth vertebra, seen laterally. 

 Fig. 14. Eighth vertebra, seen dorsally. 

 Fig. 15. Eighth vertebra, seen ventrally. 

 Fig. 16. Eighth vertebra, seen preaxially. 

 Fig. 17. Eighth vertebra, seen postaxially. 

 Fig. 18. Ninth vertebra, seen laterally. 

 Fig. 19. Ninth vertebra, seen dorsally. 

 Fig. 20. Ninth vertebra, seen ventrally. 

 Fig. 21. Ninth vertebra, seen preaxially. 

 Fig. 22. Tenth vertebra, seen laterally. 

 Fig. 23. Tenth vertebra, seen dorsally. 

 Fig. 24. Tenth vertebra, seen preaxially, 

 Fig. 25. Fifteenth vertebra, seen dorsally. 

 Fig. 26. Fifteenth vertebra, seen ventrally. 

 Fig. 27. Fifteenth vertebra, seen laterally. 

 Fig. 28. Fifteenth vertebra, seen preaxially. 



PLATE LVII. 



VERTEBRAE OP Phalacrocorax, 



Fig. 1. Atlas vertebra, seen preaxially ,"1 



Fig. 2. Atlas vertebra, seen laterally, >once and a half the natural size. 



Fig. 3. Atlas vertebra, seen ventrally. J 



Fig. 4. Axis vertebra, seen laterally, natural size. 



