LIST OF ILLUSTRATIONS. 



Page. 



Plate 1, fig. 1. — Palatal surface of Caprimulgus europaeus 120 



2. — Palatal surface of Chordeiles virginianus virginianus 120 



2, fig. 1. — Palatal surface of Antrostomus carolinensis 120 



2. — Palatal surface of Setochalcis vocifera vocifera 120 



3. — Breeding ranges of the subspecies of Chordeiles virginianus 120 



4. — Breeding ranges of the Central American and North American sub- 120 



species of Chordeiles acutipennis 120 



5. — ^Breeding ranges of the South American subspecies of Chordeiles 120 



acutipennis 120 



6. — Breeding ranges of the subspecies of Chordeiles rupestris 120 



VII 



