INSESSORES. 



71 



Order II.— INSESSORES, Vigors. 



Passeres et PiCiE, Linne. — Sylvicol^, Vieillot. — Oiseaux. 

 Passereux^ Cuvier. 



Rostrum diversum ; pedes breves aut mediocres ; tibiae plerumque 

 flumigercB ; d'lgiti subtiis plani ; ungues graciles, mobiles, sub- 

 retractiles, curmti, acuti. 



The Insessorial, or perching birds, vary considerably in the form 

 of the beah ; they have short or moderate legs; the tibice 

 usually clothed with feathers ; the toes fiat beneath ; the clam 

 slender, moveable, somewhat retractile, curved, and acute. 



From the vast extent of this Order and the very 

 great diversity of forms contained therein, it becomes 

 necessary to descend to a more minute subdivision 

 previously to treating of the families of which it is 

 composed. I shall therefore continue to tread in Mr. 

 Vigors's steps, and briefly exhibit the five types of 

 form which are apparent, and which nearly corre- 

 spond with the divisions proposed by Cuvier in his 

 R^gne Animal : these intermediate groups have not 

 unaptly been termed tribes, 



J Dentirostres, Cuvier. 

 iCoNiROSTRES, Cuvicr. 



t ScANSORES Auctorum. 

 < Tenuirostres, Cuvier. 

 C F1S8IROSTRES, Cuvier. 



Following the usual method, I proceed to no- 

 tice — 



TRIBE I.— FISSIROSTRES. 



Rostrum basi latum.; rictus amplissimus; pedes breves. 

 Beak broad at the base ; gape very wide ; legs short. 



Beak and legs of 



stout make 



Beak and legs of \ 

 slender form . I 



