164 MR. D. M. S. WATSON ON THE 
frontal.—The frontals are in contact with the anterior part of 
the sphenethmoid. 
Tabulare.—The tabulare is a large bone which has a large and 
very firm attachment to the‘end of the paroccipital process. 
Squamosal.—Vhe squamosal is a large bone on the side of the 
skull which has an articulation with the outer edge of the 
quadrate, and in addition sends a special delicate process back 
over the top of that bone. In the Hottentots Rivier specimen 
these two bones are not quite in contact, but in 49426 they are 
for a long distance, and it is very probable that the end of the 
squamosal process is in contact with the pterygoid. 
The squamosal is produced into a plate on the outer surface 
of the skull behind the quadrate, and on the border of this, just 
below the paroccipital process, is a small smooth groove, the last 
remnant of the otic notch. 
Text-figure 6. 
The skull of “ Pariasaurus,” Hottentots Rivier specimen, restored, 
from behind. 
Reference-letters as before, with Ot.n., otic notch. 
Quadratojugal.—The quadratojugal is avery large bone which 
has an articulation with the outer side of the quadrate, and helps 
to form the minute foramen quadrati. It is, however, largely 
produced behind and below this bone. 
Maailla.—The maxilla is a shallow bone, articulating along the 
whole of its upper edge with the lachrymal and posteriorly with 
the jugal and quadratojugal. It is almost certain that it really 
overlaps the lachrymal so as to be rather higher than it is repre- 
sented in text-fig. 5. 
It bears numerous teeth, which are inserted in sockets and 
very firmly held by the development of bone round their roots. 
On the inner side the maxilla articulates with the ectopterygoid 
and the palatine. 
Prefrontal—The large prefrontal sends a process downwards 
