PND REVISTA CHILENA DE HISTORIA NATURAL 
IRAP PPI DDD PALER LLL RIP PEE IPT PO 
in the case of other skull of the series, the infra-orbital suture is 
very apparent; and seems to persist till old age without obliter- 
ation. 
The bidaerye distance is small. 
The frontal is very narrow; allowing the whole side of the ' 
skull to the parietal eminences, to be seen. The palate is para- 
bole and unnsually of (17 mm. from the ceutre of the pala- 
tine torus to the alveolar plane.) The teeth are small, rather 
worn down, but all sound. The chin is prominent, but the sig- 
moid notch is not very deep owing to the vertical setting of the 
interior incisors; those of the upper jaw meeting them obliquely, 
gent thus causing great subnasal prognathism. 
The mandible though strong is not so massive as in A and B; 
the ascending ramus being small (omision) and the condyles slight. 
The teeth in this jaw presents an anomaly in having only one 
lateral incisor on either side, the other being replaced by a molar, 
with its crown and double root perfectly formed. The molars 
present a considerable inward obliquity owing to which the 
exterior edge is much more worn than the interior. The apophysis 
are very protuberant with the digastric notch well formed. 
The foramen magnum is pyraform and asymetric; the condyles 
insignificant and the jugular apophysis extremely small, The 
rugged surface of the lower portion of the occipital denote that 
the neck museles must have been very powerful. 
Skull. E 
This skull is very similar in general outline to B., having 
many points in common with the rest of the series, and also some 
special characteristics of its own. In respee to the age of the 
individual, it belonged undoubtedly to the oldest member of the 
group. The sutures, especially the coronal, are partially synost- 
osed. The forehead is low but not retreating, and the parietals 
rise to a peak about 4 centimetres behind the bregma. The 
skull is seaphoid but not so much as Ds dolicho-cephalic (71.6) 
and phaenozygous; with a marked sub-nasal prognathism. 
It is not in such perfect condition as the others of the series, 
the right parietal being badly damaged. 
Viewed in norma verticalis it is ovoid in form, with a capsular 
occiput. All the eminences are prominent, the glabella especially 
being strongly marked. 
In norma lateralis the development of- the temporal crest at 
once fixes the attention. It is so strongly marked in the frontal 
region as to cause a depression immediately above it. In the 
