ELEMENTARY SKETCH OF THE OSTEOLOGY OF BIRDS. 27 



22. Cypselomorpha (Swifts, Humming Birds, and Po- 



dargus.) (?) 



23. Celeomorphoe (Woodpeckers and Wrynecks.) 



(3. Maxillo-palatines united. 

 (^Desmognatha) 



24. AetomorpluB (Birds of Prey.) 



25. Psittacomorpha (Parrots.) 



26. Coccygomorpha (Cuckoos, Kingfishers, Trogons, 



Goat-suckers, (?) Bee-Eaters, Hornbills, and 

 Hoopoes. ) 



27. Chenomorp]i(S (Anserine Birds.) 



28. Amphimorphce (Flamingoes.) 



29. Pelargomorphce (Storks and Herons.) 



30. Dysporomorphcd (Cormorants.) 



w.'-- , ( .• ■•,,/■,.-;; 



Professor Newton's ) arrangement of the Carinatse is aa 

 follows : — 



IV. Carinat^. 

 (a.) Vomer broad behind, interposing between pterygoids, 

 palatines and sphenoidal rostrum. 

 DromcBognathcB. 



11. TinamomorpIicB (Tinamous.) 



(h.) Vomer narrow behind ; pterygoids and palatines arti- 

 culating largely with sphenoidal rostum. 

 a. Maxillo-palatines free. 



%. Vomer pointed in front. 

 (Schizognathcs.) 



12. CharadriomorplKS (Plovers and .Tringas.) 



13. CecomorphcB (Gulls, Petrels, Divers and Auks.) 



14. SpheniscomorplicB (Penguins.) 



15. GeranomorphcB (Cranes, * Bustards, Rails, and 



Dicholopus.) 



16. Alectoromorpha (Fowls.) 



17. Pteroclomorphce (Sand-grouse.) 



18. PensteromorphcB (Pigeons and Dodo.) 



19. Heteromorphcd (Hoazins.) 



20. CoccygomorphcB (part) (Goatsuckers.) 



21. Trochilomorphcd (Humming birds.) 

 a. Vomer truncated in front. 



(jtEgithognaihce. ) 



22. Geranomorphce (part) (Thenocorinse,) 



23. Turnicomorp/Kie (Hemipods.) 



24. Ci/pselomorpha (Swifts.) 



25. Coracomorphce (Passerines.) 



in. Vomerine halves permanently difetinct ; maxillo- 

 palatines arrested. 



* Except Thinocorus. 



