1896.] 



Mr Shrvbsall, Crania from Teneriffe. 



159 



Making similar comparisons for other curves. 



The relation of the supra-auricular to the total transverse 

 curve (= 100) is in males 65 # 6 and in females 66 - 8, while that of 

 the preauricular to the total horizontal (= 100) is for males 477 

 and for females 45*4 as compared with 



458 in skulls from Caverne de L'Homme Mort, 

 and 46'1 in Basques. 



However on seriating the results of this last relation, we find 

 that very few crania present this actual mean relationship but 

 group themselves round the numbers 41 and 52, indicating a 

 greater frontal and occipital development respectively. 



Viewed in norma occipitalis the skulls are somewhat penta- 

 gonal in form, but the parietal eminences are not very prominent, 

 and the greatest transverse diameter in about 80 per cent, of 

 crania lies between the temporal bones. In the better class of 

 mummies, presumably those of chieftains of some importance, 

 there is in several instances, more frequently so than in the less 

 cared for bodies, a prominent median sagittal ridge along a groove 

 in which the interparietal suture runs for the posterior half of its 

 course. 



The temporal crest is always well marked both in male and 

 female crania, the double nature of the ridge being very distinct. 

 The zygomatic processes are stout, strongly arched outwards and 

 with a supramastoid ridge usually extending up on to the posterior 

 inferior angle of the parietal bone. 



The pterion is of the ordinary H shape and anomalies are rare 

 in this situation. In many cases the sphenoid and frontal bones 

 close behind the external orbital process are markedly bulged 

 outwards, and in the average among males the transverse diameter 

 from one pterion to the other is greater than the bistephanic 

 breadth. 



Viewed in norma verticalis the crania are plainly phsenozygous, 

 and appear either pentagonal or, as in a smaller number of cases, 

 oval ; a slight projection of the face is also noticeable. 



The mean dimensions appear in the following table : 



12—2 



