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Annals of the Carnegie Museum. 



chops, Hoploxypterus, Eurypyga, Plegadis, Harpiprion, Jabiru, Hero- 

 dias, Chauna, Nomonyx, and Fregata, or of birds of prey such as 

 Parabuteo, Leucopternis, Thrasaetos, Spisiastur, Elanus, Bubo, Speo- 

 tyto, and Tyto. Among " Picarian " forms Capita, Jacamerops, Mo- 

 nasa, and Celeus are conspicuous by their absence, and among Passerine 

 birds such well-known genera as Hylophylax, Sittasomus, Placostomus, 

 Myiobius, Querula, Geothlypis, Pitylus, Chlorophanes, " Phcenico- 



FiG. 5. Range of Phaethornis longirostris Susurrus (i), a characteristic form 

 of the Humid Tropical Zone of the Santa Marta Region, and of its nearest 

 ally, P: longirostris cephalus (2), to show their discontinuous distribution. 



