GALLI 



301 



It is evident that not much of classificatory importance 

 is deducible from the above facts. Huxley has used with 

 more success the remaining parts of the skeleton. 



The gallinaceous birds are divided by Huxley into two 

 main subdivisions, Peristeropodes and Alectoropodes. 



Fig. 152. — Skuh op Tetrao Fio. 153. — Sternum of Crax 



lorogallus. ' Venteal View. globicera (aetee Huxley). 



(After Huxley.) Letters as in Fig. 72, v. 



Mxp, maxillo-palatines ; Vo, vomer ; 128, WITH WHICH THIS FlQUEE 



J/a:, maxilla; Pi, palatines;/'^ ptery- IS TO EE COMPABEB. 



golds ; +, basipterygoid facets ; Pmx, 



premaxlUa. 



The former contains the Cracidae and Megapodidffi, the 

 latter the remaining families. 



The Peristeropodes may be thus defined : — 



1. Sternum with not very deep inner notches (fig. 153) and 

 with short obtuse costal processes, the anterior edge of which 

 is at right angles to the long axis of sternum. 



2. Hallux on a level with other toes. 



