"Fig. 62 Skull of common fowl, enlarged. from nature by Dr. R.W. Shufeldt, U.S.A. The names of bones…
The Pterygoid muscles, the zygomatic arch, and a portion of the ramus of the mandible have been removed.
"Schizognathous skull of common fowl. pmx, premaxilla; mxp, maxillopalatine; mx, maxilla; pl, palatine;…
"Saurognathous skull of woodpecker (Colaptes auratus). v, v, the posterior parts of the abortive vomer;…