353 



flat, with only a scarcely discernible ridge at their line of union : they 

 are consequently nearly in the same plane with the anterior edge of 

 the upper ends of the maxillaries. The naso-frontal suture is hori- 

 zontal for the distance of half an inch, is bent down at either end to 

 become continuous with the fron to-maxillary suture, and is remarkable 

 for its great length. The breadth of the root of the nose is dependent 

 on the nasals, and not upon the breadth of the ascending part of the 

 superior maxillary bones, as stated by Dr. Knox.* 



Malar hones. These, with the outer portion of the maxillaries, 

 are remarkably bulging and rounded. The portions of the edges 

 of the orbits formed by them, instead of being somewhat sharp, as in 

 other crania, are quite noticeable for their roundness. The zygomatic 

 arches do not differ from those of ordinary crania in their projection 

 outwards. 



Maxillary hones. The edges of the ascending portions of the upper 

 jaw, where they form the border of the nares, project very little beyond 

 the level of the face, and are bent inwards, instead of being directed 

 forwards. It is in consequence of this, and the flatness of the nasal 

 bones, that the middle portion of the face is so slightly prominent. The 

 alveolar borders are remarkably pi'ominent, forming a somewhat point- 

 ed arch ; the space occupied by the incisor teeth being narrow, and 

 the lateral incisors facing more outwards than forwards. No trace 

 of an intermaxillary suture could be detected. 



The outline of the alveolar portion of the lotner jaic corresponds with 

 that of the upper; the symphysis is remarkably high, and the chin 

 strikingly pointed and ^ii'ominent. The height of the bone dimin- 

 ishes rapidly backwards, and the angles are not prominent. This de- 

 scription agrees with that of Cuvier, as regards the prominence of the 

 jaws ; and differs from that of Blumenbach, who asserts that the jaws 

 do not project at all. 



The orhits are quadrangular; the tranverse diameter considerably 

 the longest. 



Interior of the cranium. The most striking feature here is the nar- 

 rowness and the diminutive size of the fossas for the lodgement of the 

 anterior cerebral lobes. The orbltar plates of the frontal bones rise 

 higher above the cribriform plate of the ethmoid bone, and make the 

 olfactory fossa deeper, than in ordinary crania : they ascend rapidly 

 on each side, thus projecting into the cavity of the head at the expense 

 of the space usually occupied by the anterior lobes of the brain. 



The foramen magnum was rather under than over the average size ; 



* Quoted by Prichard. Researches into the Phys. Hist, of Man, vol. 

 p. 313. London : 1851. 



PKOCEKDINGS B. S. N. H. — VOL. IX. 23 MARCH, 18G5. 



