442 SKULLS OF WESTERN AFRICANS. Ai-i-. I. 



narrow, and sinks anteriorly into a post-squamosal 

 pit. The sagittal suture is crennlate, but narrower 

 than the lambdoid, where it leaves that suture ; it 

 then becomes crenate,* again crenulate, but contracts 

 to a wavy linear condition as it approaches the co- 

 ronal. This is a minutely wavy line for about an 

 inch and a half from the sagittal, then becomes finely 

 crenulate and broader until about an inch from the 

 alisphenoid, where it is crenate, and then again linear 

 and wavy. A mere point of the upper and hinder 

 angle of the alisphenoid joins the parietal, conse- 

 quently there is no " spheno-parietal " suture. The 

 sjDheno-frontal suture — the left ten lines, the right 

 eleven lines in length — is linear, almost straight, 

 slightly squamous. The squamo-parietal suture is, 

 as usual, squamous ; the squamo-sphenoid is a linear 

 harmonia, such also is the spheno-malar suture. The 

 fronto-malar is continued forward from the spheno- 

 frontal suture. The "upper curved ridge'' of the 

 super-occipital is well defined, but without a median 

 occipital prominence ; the more feeble lower curved 

 ridge terminates above the persistent parts of the 

 super-ex-occipital sutures. The par-occipital ridges 

 are moderately developed. The supra-mastoid ridges f 

 are well defined through the depth of the supra-mas- 

 toid groove running from the supra-mastoid or post- 



* By "crenate" I mean where tlie waves, or angles, or "denticulations" of 

 the sutural margin do not i--ond off secondary waves or angles; in wliich 

 case I use the term "crenulate." The breadth of the suture is the extent 

 across which the waves or angles interlock. 



t 'Descriptive Catalogue of the Osteological Series, Museum, Royal 

 College of Surgeons,' 4to., 1853, p. 825, et seq. Syn : "backward exten- 

 sion of the posterior root of the zygomatic process" in anthropotomy ; 

 Sharpcy's ' Quain's Anatomy,' ed. 18(J4, vol. i., p. 3C. 



