XXX 



INTRODUCTION. 



Pig. 11. 

 (From P. Z. S. 1895, p. 370, fig. 5.) 



2>y 



Posterior aspect of prosopium *. 



Jj). Lachrymal process. 

 mp. Median process. 

 t»r. Median ridge. 



ocj. Oblique groove. 



p. Dorsal process. 



plf. Fossa for the reception of palatine. 



pn. Posterior prosopial nares. 



sp. Lateral process. 



Tig. 12. 



(From P. Z. S. 1395, p. 378, fig. 6.) 



Its 



Tentral aspect of the skull. 



Its. Basi-temporal shield. 

 ?. Lachrymal. 



le. Lateral eustachian process. 

 me. Median eustachian process. 



oc. Occipital condyle. 



j>. Palatine. 



par. Paroccipital process. 

 pt. Pterygoid. 

 q. Quadrate. 

 sp. Septal process. 

 sph. Sphenotic process. 

 z. Zygoma. 



* By "prosopium" Tve intend to denote the whole ossified mass in front of the cranio-facial articulation. It includes 

 the premaxilla, maxilla?, maxillo-palatine processes, the nasals, and the ethmoidal and turbinal ossifications of the beak. 

 This term was proposed by us (see P. Z. S. 1S95, p. 365, note, and for descriptions see also pp. 369-371). 



