PASSER I, S. 247 



Tail of the ordinary size. 



Head with a crest of long feathers. 



124. UPUPA. Hoopoe. Crest feathers in a double lon- 

 gitudinal row. 



Head plain. 



125. EPIMACHUS. Nostrils covered with downy feathers. 

 Upupa magna. 



126. FRIGILUS. Chough. Nostrils covered with wiry 

 feathers. Corvus graculus. 



II. First and second toes adhering nearly to their ex- 

 tremity. 



The first toe is produced, and nearly of equal length with 

 the middle one. 



(A.) Hind-toe developed. 



Upper mandible notched at the extremity. 



127. PIPRA. Manakin. Bill compressed. Nostrils 

 wide. Head crested. P. rupicola. 



Upper mandible destitute of a notch. 



Mandibles serrated. 



128. BUCEROS. Hornbill. Tongue small and pointed. 

 Bill remarkably large, inflated. In some of the species 

 there is a horny protuberance, at the base of the upper 

 mandible, of a large size. 



129. PRIONITES. Tongue plumosely barbed. Feet 

 short. Tail long. P. Brasilienses. 



Mandibles plane. 



Bill angular lengthened. Feet shorU 



130. MEKOPS. Bee-eater. Bill slightly arched, and 

 sharp pointed. M. apiaster. 



131. ALCEDO. King's-fisher. Bill stra'ght and blunt. 

 A. Ispida. 



