SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



Order Aepyornithi formes, Elephant-birds. 



Family Aepyornithidae, ^^/'A'or^/^ (fossil and extinct). 

 Order Apterygiformes, Kiwis. 



Family Apterygidae, Kiwis. 

 Order Tinami formes, Tinamous. 



Family Tinamidae, Tinamous. 

 Superorder Impennes, Penguins. 

 Order Sphenisciformes, Penguins. 



Family Spheniscidae, Penguins. 



Cladornithidae, Cladornis (fossil). 

 Superorder Neognathae, Typical Birds. 

 Order Gaviiformes, Loons. 



Family Gaviidae, Loons. 

 Order Colymbiformes, Grebes. 



Family Colymbidae, Grebes. 

 Order Procellarii formes, Albatrosses, Shearwaters, Petrels, 

 and Allies. 

 Family Diomedeidae, Albatrosses. 



Procellariidae, Shearwaters, Fulmars. 

 Hydrobatidae, Storm Petrels. 

 Pelecanoididae, Diving Petrels. 

 Order Pelecani formes, Tropic-birds, Pelicans, Frigate-birds, 

 and Allies. 

 Suborder Phaethontes, Tropic-birds. 



Family Phaethontidae, Tropic-birds. 

 Suborder Pelecani, Pelicans, Boobies, Cormorants, Snake- 

 birds. 

 Superfamily Pelecanoidea, Pelicans and Allies. 

 Family Pelecanidae, Pelicans. 



Cyphornithidae, Cyphorms, Palaeochenoides 

 (fossil). 

 Superfamily Suloidea, Boobies, Cormorants, and Allies. 

 Family Pelagornithidae, Pelagornis (fossil). 

 Sulidae, Boobies, Gannets. 

 Elopterygidae, Elopteryx, Eostega, Actiornis 



(fossil). 

 Phalacrocoracidae, Cormorants. 

 Anhingidae, Snake-birds. 

 Suborder Fregatae, Frigate-birds. 



Family Fregatidae. Frigate-birds. 



