Fig. 1. Sternum, with coracoids and furcula, of Thalassiarche melanophrys , from 

 in front. Reduced. 



Fig. 2. The same, from the side. 



Fig. 3. Sternum and pectoral arch of Pelecanoides urinatrix, from in front. 



Fig. 4. The same, from the side. 



Fig. 5. The same, of Cymochorea leucorrhoa, from in front. 



Fig. 6. The same, from the side. 



Fig. 7. The same of Fregetta rnelanogastra, from in front. 



Fig. 8. The same, from the side. 



Fig. 9. Outline of posterior margin (right side) of sternum of Ossifraga gigantea. 

 Reduced. 



Fig. 10, The same of Da<ption capensis. 



Fig. 11. The same of Fulmar us glacialis. 



Fig. 12. The same of Aeipetes antarcticus. 



Fig. 13. The same of Thalassoeca glacialoides. 



Fig. 14. The same of Prion desolatus. 



Fig. 15. The same of Pagodroma nivea. 



Fig. 16. The same of Bidweria columbina. 



Fig. 17. The same of GLstrelata lessoni. 



Fig. 18. The same of A damastor cinereus. 



Fig. 19. The same of Majaqueus cequinoctialis. 



Fig. 20. The same of Puffinus anglorum. 



