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DR. J. MURIE ON THE 



Fig. 



51. Cranium from above. 



aiT 



figur 



N, 



OS, prenasal ossicles 



Pmx, premaxillaiy bone. 



Mx, maxillary (superior). 



Fj frontal. 



Lj lachrymal, 



Mqj malar^or jugal 



Pa, parietal. 



Sq, squamosal. 



Ty, tympanic. 



Boj basioccipital. 



Bs, hasisphenoid. . 

 Psy presptcnoid. 



iSj alisphenoid. 



Osy ortito-splienoid, 



E, ethmoid (cribiform plate) . 



P/, palatine. 



srygoid 



nf] 



/, mental foramina, 

 m, nuistoid process, 

 mf, postma^itoidal f< 

 e, condyle. 



ARMADILLO 



bra 



■ 



Che lettering iu them bears correspondence, 



na, anterior apertures of nares. 

 aj)y anterior palatine foramen. 

 Jia, foramen laceruna anterius. 

 fifUj foramen laccrum medius. 

 fip, foramen lacerum posterius. 

 mSy maxillary sinus (= antrum maxillare). 

 fsy frontal sinuses. 



cffy crista galli (preethmoid) . 

 opy optic foramen. 



sp^ sphenoidal fissure. 

 fo^ foramen ovale. 

 fsy foramen spinosum. 

 fry ? foramen rotundum. 



vCy Vidian canals, 



^flj carotid aperture. 



pff, postglenoid foramen. 



tyhy tympanohyal ossicle. 



me^ meatus auditorius internus, 



aCj anterior condyloid foramen. 



frriy foramen magnum. 



la, depression of lateral sinuses. 



a J angle of lower jaw. 



