PASSEKES. 21'7 



Tail of the ordinary size. 



Head with a crest of long featiiers. 



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

 gitudinal row. 



Head plain. 



125. Epimachus. Nostrils covered with downy feathers. 

 Upupa niag-na. 



126. Frigilus. Chough. Nostrils covered with wiry 

 ieathers. Corvus gracuhis, 



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. BucEUOs. 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. Brasilienscs. 



Mandibles plane. 



Bill angular lengthened. Feet short. 



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

 sharp pointed. M. apiaster. 



131. Alcedo. King's-fisher. Bill stra'ght nnd blunt. 

 A. Ispida. 



