of the United States . 
13 
SUBCLASS II. 
Hind toe articulated higher on the tarsus than the fore 
toes, incapable of grasping , or wanting. 
ORDER III. GALLING. 
Tarsi rounded, robust, rather short ; tibiae wholly feathered: 
bill short, vaulted. 
21 . Gallic acei. Fore toes connected at base by a membrane. 
* Tarsi naked. ** Tarsi feathered. 
22. Crypturi. Toes not connected by a membrane. 
* Four toed. ** Three toed. 
ORDER IV. GRALLiE. 
Tarsi rounded, slender, elongated ; tibiae almost always 
partly naked : bill generally elongated. 
23. Struthiones. Feet two or three toed; toes divided: 
no quill feathers. 
24. Pressirostres. Bill moderate, rather robust : hind toe 
wanting or very short. 
25. Alectrides. Bill short, stout, subvaulted : toes four, 
some or all connected. 
* Hind toe not touching the ground. 
** Hind toe bearing on the ground. 
26. Herodii. Bill elongated, stout, robust. 
* Hind toe touching the ground only at tip. 
** Hind toe bearing on the ground with several joints. 
27. Falcate Bill very long, arcuated : face naked : hind 
toe bearing on the ground nearly its whole length. 
28. Limicol#:. Bill elongated, slender : hind toe hardly 
touching the ground, or wanting. 
29. Macrodactyli. Bill short or moderate : toes divided, 
very long: hind toe bearing on the first joint. 
* Toes simple. ** Toes pinnated, 
2 
VOL. II. 
