Fig. 1. Liver, stomach, and duodenal loop o£ Majaqueus cequinoctialis, viewed from in 

 front. L. Liver, pr. Proventriculus (the letters are placed on its fundus), g. Gizzard. 

 p. Pancreas, g.b. Gall-bladder, r.h.d., l.h.d. Right and left hepatic ducts, v.p. Vena 

 portae. h.a. Hepatic artery. 



Fig. 2. Outline of stomach, &c, of Fregetta grallaria. 



Fig. 3. Colic caeca of Majaqueus cequinoctialis, enlarged slightly. 



Fig. 4. Gizzard of Fulmarus glacialis laid open, to show the character of its 

 epithelium. 



Fig. 5. Tongue of Oceanites oceanicus. 



Fig. 6. Tongue of Pelecanoides urinatrix. 



Fig. 7. Tongue of Diomedea brachyura. 



Fig. 8. Tongue of Phcebetria fuliginosa. 



Fig. 9. Tongue of Oymochorea leucorrhoa. 



Fig. 10. Tongue of Ossifraga gigantea. 



Fig. 11. Tongue of Aeipetes an tarcticus. 



Fig. 12. Tongue of Daption capensis. 



Fig. 13. Tongue of Prion banksi. 



Fig. 14. Tongue of Pagodroma nivea. 



Fig. 15. Tongue of CEstrelata lessoni. 



Fig. 16. Tongue of Larus sp. ? 



Fig. 17. Tongue of Majaqueus cequinoctialis. 



Fig. 18. Tongue of Puffinus brevicauda. 



Fig. 19. Palate of Oceanites oceanicus, enlarged. (The line shows the natural size.) 



Fig. 20. Palate of Pelecanoides urinatrix. 



Fig. 21. Palate of CEstrelata lessoni. 



Fig. 22. Palate of Fulmarus glacialis. 



Fig. 23. Palate of Prion banksi. 



All the figures, except figs. 3 and 19, axe of the natural size. 



