OSTEOLOGY 



143 



end of the premaxillary process, but it is generally so. In 

 the schizorhinal skull it often appears, as in the typical 

 schizorhinal cranes and charadriiform birds, as if the outer 

 part oi the nasal bone were a distinct bone ; for it joins the 



Pig. 81 Skull op 



Lateral View. (After Beddard.) 



inner lamina at an angle. In the typical holorhinal skull,, 

 on the other hand, as, for example, in the Rallidse, the two 

 parts of the nasal come smoothly together, leaving the clear- 



EiG. 82. — Skull of Larus. 

 Dorsal View. (After 

 Gaerod.) 



Fio. 83. — Skull or Furnarius. 

 Dorsal View. (After 



Garrod.) 



cut, ovally contoured nostril. It is not, however, always easy 

 to distinguish so clearly as can be done between Ballus and 

 G-rus. Thus Gtarrqd admits the schizorhiny of Furnarius 



