250 DR. H. GADOW ON THE [Mar. 1 5, 



II. Macrochires. 



Cosmopolitan. 



10 remiges, terminal quill long. 



Oil-gland nude. 



Spina externa and interna very small or absent. 



Coracoids separate. 



13 or 14 cervical vertebrae. 



Intestinal convolutions of type VI. 



1. Gaprimulgid(B. 



Cosmopolitan. 



Nestlings downy. Adult downs restricted to the 



apteria. 

 Bill broad, wide, short. 

 13 or 14 cervical vertebrae. 

 Hypotarsus complex. 

 Flexors of type V. 

 Syrinx bronchial. 

 Caeca functional. 



2. GypselidcB, 



Cosmopolitan. 



Nestlings naked. Adult downs restricted to the 



apteria. Insectivorous. 

 Bill broad, wide, short. 



13 or 14 cervical vertebrae. 

 Hypotarsus simple. 

 Flexors of type V. 

 Syrinx tracheo-bronchial. 

 Caeca absent. 



3. Trochilidce. 



American. 



Nestlings naked. No downs in adults. 



Bill long, slender. Tongue bi-tubular. 



14 cervical vertebrae. 

 Hypotarsus simple. 

 Flexors of type I. 

 Syrinx tracheo-bronchial. 



Caeca absent. Crop present (unique among 

 Macrochires). 



III. COLII. 



Ethiopian. Phytophagous. 



10 remiges. Oil-gland tufted. No downs in adults. 

 Desmognathous. No basipterygoid processes. 

 Spina externa well developed. 

 13 cervical vertebrae. 

 Left carotid only. 



Hypotarsus complex. Flexors of type V. 

 Intestinal convolutions of type VI. Caeca absent. 

 1. Coliidce. 



