SKULL OF A PARIASAURIAN REPTILE. 165 
within the lachrymal just in front of the-orbit, which reaches 
and articulates with the corresponding process on the upper 
surface of the palatine. 
Septomawillare.— Despite the fact that this bone has been 
described by Seeley and Broom, I can find no certain evidence of 
its presence, and believe that if it existed, as it probably did, it 
was only loosely placed in the nostril as in Sphenodon and most 
Stegocephalia. 
Stapes.—A. small fragment of bone lying in contact with the 
fenestra ovale on the right side of the Hottentots Rivier specimen, 
is probably the proximal end of a stapes; it is very imperfectly 
preserved, but seems to be a plain plug about 10 mm. across 
proximally, rapidly narrowing to 6 mm. 
The only other types of Pariasaurian skull that are at my dis- 
posal are: Ist, the type skull of Owen’s Anthodon serraius, and 
2nd, the type skull of Hlginia mirabilis. 
Text-figure 7. 
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The type-skull of Anthodon serraius Owen, X 3. 
The side of the face, showing the sutures. 
This sketch should be compared with Owen’s excellent lithographic drawing. 
The skull of Anthodon is very badly preserved, being crushed, 
weathered, and all the surface removed from what bone remains; 
none the less it shows the sutures between the bones of the side 
of the skull quite clearly, they being indicated by the direction 
of the radiating fibres of the bones. 
The structure will be most clearly understood from text-fig. 7. 
