THE VARIETIES OF THE HUMAN SPECIES. 



39 



This form is not very common, and can undergo variations in 

 the norma verticaHs, that is, can be larger in the transverse diame- 

 ter, and hence relatively shorter; it is always low in the norma 

 lateralis and through its entire length. 



9th. Cylindroid {cylindroides). 



If the rounding of the corners and the sides of the parallel- 

 epipedoid renders it more convex, there is the " cyHndroid," which 

 is long^ narrow, low, like the first, but rounded all around. There- 

 fore the forehead is lower, retreating (Fig, 20), and, seen from the 

 vertical, the occiput is narrow (Fig. 21); this occurs in the types 

 here given, of which one (Fig, 21) is from Latium, the other from 

 the Russian Kourgans, Such a form is rather rare, as is also the 

 parallelepipedoid. 



Fig. 20.— Cylindroides 



Fig. 21.— Cylindroides. 



loth. Cuboid {cuboides). 



The cranium resembling a cube, has the arch, the occipital, and 

 the sides smooth, and possibly the forehead, which is almost 

 always vertical, at least in the small cuboids. One cubical form, 

 which approaches nearer to its typical name, has the vertical line 

 about corresponding to a quadrilateral, a little elongated ; but we 

 know that the anterior is always narrower than the posterior part 

 of the cranium. As a rule, such a cranial form is more visible 



