NO. II CLASSIFICATION, BIRDS OF THE WORLD — WETMORE 27 



Superfamily Ralloidea, Rails. 



[Family Orthocnemidae, 2 Orthocnemus, Elaphrocne- 



mus (fossil).] 

 Rallidae, Rails, Coots, Gallinules. 

 Suborder Heliornithes, Sungrebes. 



Family Heliornithidae, Sungrebes. 

 Suborder Rhynocheti, Kagus. 



Family Rhynochetidae, Kagus. 

 Suborder Eurypygae, Sunbitterns. 



Family Eurypygidae, Sunbitterns. 

 Suborder Cariamae, Seriemas and Allies. 



[Superfamily Phororhacoidea, Phororhacos and Allies 

 (fossil).] 

 [Family Phororhacidae, Phororhacos and Allies (fos- 

 sil).] 

 [Psilopteridae, Psilopterus and Allies (fos- 



sil).] 

 [Brontornithidae, Brontomis, Liornis, and 



Allies (fossil).] 

 [Opisthodactylidae, Opisthodactylus (fossil).] 

 [Cunampaiidae, Cunampaia (fossil).] 

 Superfamily Cariamoidea, Seriemas and Allies. 

 [Family Bathornithidae, Bathornis (fossil).] 



[Hermosiornithidae, Hermosiornis, Procari- 



ama (fossil).] 

 Cariamidae, Seriemas. 

 Suborder Otides, Bustards. 



Family Otididae, Bustards. 

 [Order Diatrymi formes, Diatryma, Omorhamphus, and Allies 

 (fossil).] 

 [Family Diatrymidae, Diatryma (fossil).] 



[Gastornithidae, Gastomis, Remiornis (fos- 

 sil).] 

 Order Charadrii formes, Shore Birds, Gulls, Auks. 

 Suborder Charadrii, Shore Birds. 

 Superfamily Jacanoidea, Jaqanas. 



Family Jacanidae, Jaqanas. 

 Superfamily Charadrioidea, Plovers, Sandpipers, and Al- 

 lies. 



2 Position provisional. 



