56 



THE VARIETIES OF THE HUMAN SPECIES. 



a cranium resembling the form of a tower. This cranium is also 

 a trapezoid, but it is larger, the occiput is high and perpendicular, 

 so that the vertex of the cranium coincides very far back v^ith the 

 bregma. It is large enough to appear spheroid, the anteposterior 

 declivity slopes uniformly from the back. 



I preserve the name Pyrgoides for such forms because the 

 occipital looks like the wall of a tower, high and quadrangular; 

 but I consider it a subvariety of the trapezoid. I have noticed 

 variations in Pyrg. romanus. The type in Fig. 49 is a cyrtocepha- 

 lus, so called on account of the fronto-bregmatic protuberance, 

 a rotundatus on account of the truncated corners and the convex 

 faces. 



Fig. 49.— Pyrgoides. 



XII. Acmonoides. — Of this singular variety I have found sub- 

 varieties: a) siculus, which is the typical form described; b) mega- 

 lometopus, or having a large, wide forehead ; c) obtusiis, on account 

 of the rounded corners; d) stegoides, on account of the roof-like 

 arch ; e) siibtilis, because narrower than the type ; f) proophyrocus, 

 because it has prominent frontal sinuses which do not exist in the 

 type. 



XIII. Lophicephalus. — This variety ofifers some variations 

 from the type from Melanesia before presented; its principal 

 characteristic does not consist in the lophos, but in the cranial 



