615 



(Fig. 2 gives an ideal representation of the norma occipitalis of 

 a human skull, to set off the situation of the 3 tubercula [•, x, o] 

 with regard to each other and with regard to the 1. nuch. inf. and 

 both its right and left side-branches. So this fig. 1 does not refer 

 to this description of the skull; fig. 2 does however.) 



Waldeyer writes on pg. 28 with regard to skull 11: „Alle drei 

 Nackenlinien sind angedeutet; bemerkenswert ist an der linken Seite 

 ein deutliches Tuberculum etwa in der Mitte des queren Neben- 

 schenkels der Lin. nuch. inf., jedoch nicht an der Stelle, wo derselbe 

 die Lin. nuch. sup. trifft, sondern weiter medianwärts gelegen. Dies 

 Tuberculum (x) ist vom Proc. retromast. (o) wohl zu unterscheiden." 



Fig. 2. Norma occipitalis. 



So MiCHELSSON thinks that Waldeyer means the point (•) in 

 the figure, but Waldeyer really means the point (x). Waldeyer 

 has not given a name for this tuberculum, as far as I know. 



If, according to Waldeyer (2 pg. 8), we divide the crista occ. 

 externa into 2 parts: the cr. occ. ex. sup. and inf. we see that these 

 2 parts are different in this skull. Both parts are clearly developed; 

 the cr. occ. ex. inf. is very sharp and the cr. occ. ex. sup. has a clear 

 tuberculum of 2 mm. and of a round shape, about in the middle 

 of its course. This is wanting on the crista occ. ext. inf. The 2 

 parts of the cr. occ. ext. are about equally long. On the right and 

 on the left of the cr. oc. ext. sup. the deep impressions of the muse, 

 semispinalis capitis are clearly to be seen. 



