248 PHILOSOPHY OF ZOOLOGY. 



Bill depressed, 



13%. TODUS. Tody. Bill long, obtuse, and covered 

 at the base with bristles. T. Viridis. 



(B.) Hind toe imperfect. 



133. CEYX. Bill straight and blunt. Akedo tridac- 

 tyla. 



Two toes only directed forwards. 



The outer toe, when it exists, is directed backwards. 

 Birds possessed of this character have been long termed 

 Climbers, or Scansores. Other birds, however, in which 

 the toes are arranged in the ordinary manner execute the 

 same motions. The species inhabit woods, and either feed 

 on fruits or insects. 



A. Toes equally divided, two before and two behind. 



(1.) Anterior toes separate. 



a. Bill remarkably large and hollow. The birds of this 

 group have been termed Levirostres. 



Upper mandible with an acute vertical crest. 



134. CROTOPHAGA. Ani. Bill compressed, withput 

 serratures on the edges. C. major, 



Mandible destitute of the vertical crest. 

 Base of the bill surrounded with pencils of stiff wiry 

 feathers, 



135. Bucco. Barbet. Feet naked. B. tamatia. 



136. TROGON. Eurucui. Feet feathered. T. stri- 

 gillatus. 



Base of die bill destitute of wiry tufts. 

 Tongue plumosely barbed on the margin. 



137. RHAMPHASTOS. Toucan. Bill about the size of 

 the whole body, and serrate at the edges. R. viridis. 



