22 



Figs. 6-10. Chasiemtis sandvicensis. 



6. Dorsal view of the bill, nostrils, and feather-tracts. Nat. size. 



7. Side view of bill and nostrils. Nat. size. 



8. Dorsal view of tongue. Nat. size. 



9. Ventral view of bones of palate ; enlarged. v. = vomer; macc.pl. = left maxillo-palatine ; 



£?•./>/. = transpalatine portion of left palatine. 



10. Right-sided view of the intestinal convolutions. 



FigS. 11-16. LOXIOIDES BAILLEUI. 



11. Side view of bill and nostrils. Nat. size. 



12 a. Dorsal view of the tongue, situated within the under jaw. Nat. size. 

 12 b. Dorsal view of the tongue proper. Nat. size. 



13. Bones of the palate. 



14. Scutellation of metatarsus, seen from the lateral side. Nat. size. 



15. Dorsal feather-tracts. Nat. size. 



16. Convolutions of the intestinal canal. 



Figs. 17-20. Psittacibostba psittacea. Nat. size. 



Figs. 21-35. Acrulocercus braccattts. 



21 a. Bill, nostrils, and principal muscles of the tongue, after removal of the skin. Nat. size. 

 For comparison, in order to understand the mechanism, see fig. 21 b, Nectarinia 

 splendida. g.hy. = geniohyoid muscle; st.hy. = stylohyoid muscle ; tr. = trachea. 



22. Transverse section through the bill, across the nostrils, to show position of upper and 



lower opereula (u.o. and l.o.) : if = tongue; m = mandible. 



23, 24. Dorsal and ventral views of pterylosis. 



25. Transverse section through metatarsus, to show position of scales ; enlarged. 



26, 27. Ventral and dorsal views of the tongue ; enlarged. 



28. Diagrammatic representation of mode of splitting and fraying out of the sheath of the 



tongue. 



29. Ventral view of the bones of the palate ; enlarged. 



30. One entire feather of the axillary tufts ; enlarged and diagrammatic. 



31. One barb of the same feather, from its basal half; considerably magnified, to show- 



absence of hooklets. 



32. The same, from the tip of the feather; seen under the same power as fig. 31. 



33. The tip of a barbule of the barb represented by fig. 32 ; strongly magnified. 



34. The tip of a barbule of the more fluffy or basal barbs ; strongly magnified. 



35. Diagram of the intestinal convolutions. 



Figs. 36-39. Vestiaria coccinea. 



36. Side view of bill and nostrils. Nat. size. 



37. Transverse section across the nostrils. Same as fig. 22. 



38. Side view of the tongue ; enlarged. 



39. Intestinal convolutions. 



Fig. 40. Himatione sanguinea. Dorsal view of the tongue ; enlarged. 



Fig. 41. Himatione virens. The intestinal convolutions, seen from the right side. 



