472 EXPLANATION 



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a. Os Frontis. 



b. Os Parietale. 



c.c. Anterior Ossa Frontis. 



d.d. Posterior Ossa Frontis. 



c.e. Jugals. 



f.f. Maxillaries. 



g. Single Intermaxillary. 



h.h. Ossa Nasi. 



i.i. Ossa Temporum. 



k.k. Ossa Mastoidea. 



ll. Tympana. 



m. Superior Os Occipitis. 



n. Inferior Os Occipitis. 



0. Sphenoid. 



p.p. Pterygoidea interna. 



q,q. Ossa Transversa. 



r.r. Ossa Palati. 



Plate /, fig. 1, 2j 3. Head of the Great Python of Java, 

 showing he osteology of the head of an ordinary non- venomous 

 serpent. 



Fis. 1, as viewed from beneath; fig. 2, from above; and 3, in 



profil. 



a.a. Ossa Frontis, properly so called. 



h.b. Anterior Ossa Frontis. 



c.c. Posterior Ossa Frontis. 



d.d. Supra orbitals, 



f. Single Os Parietale. 



g-.g. Ossa Mastoidea. 



h. Superior Os Occipitis. 



u. Petrous portions of the Temporal bone. 



k.k. Tympana. 



//. Ossa Transversa. 



m.m. Pterygoidea Interna. 



n.n. Ossa Palati. 



0. Single Sphenoid. 



p. Single Vomer. 



q. Single Intermaxillary. 



r. Maxillaries. 



s.s. Inferior Ossa Turbinata. 



t.t. Ossa Nasi. 



u. Inferior Os Occipitis. 



v.v. Stapes of the ear. 



