MAC CURDY HUMAN SKULLS FROM GAZELLE PENINSULA. 



The inion is not prominent, never exceeding 2 of Broca's 

 scale even among the males. The linea nuchae suprema is 

 easily visible in four males and one female. The occurrence 

 of parietal foramina may be shown to best advantage by 

 tabulation: 



Region of the pterion. The frequency with which a con- 

 tact between the frontal and temporal bones takes place varies 

 among the different races of mankind. 



In the series from Gazelle Peninsula the temporo-frontal 

 articulation occurs on both sides in three crania and on one 

 side in four crania. In two of the latter the temporal bone 

 touched the frontal by means of a point only, instead of along 

 a suture line. The so-called pterion retourne is found therefore 

 either on one or both sides in 29 per cent of the crania. Or to 

 put it in another way out of total of 48 pterions (counting 

 the two sides in every case) the reverse form occurs ten times, 

 which is 20.8 per cent of the whole. There are only three 

 occurrences of wormian bones in the region of the pterion (in 

 one case on both sides). Thus ten out of the twenty-four 

 crania have anomalies of the pterion. This is practically the 

 same percentage (41 .6) as in the series of 1 50 crania from Neu 

 Pommern and Mioko described by Krause. He found the 

 reversed pterion in 32 but of 150 crania (21.3 per cent); in 



