160 MR. D. M. S. WATSON ON THE 
The bone is apparently all one, there being no visible sutures, 
and it is very clearly distinct from the membrane bones of the 
skull roof. 
Viewed from within its floor is pierced by two pairs of foramina : 
the posterior are large rounded openings, for the IInd and IIIrd 
nerves; the anterior are much smailer foramina lying somewhat 
outside the others, and possibly transmitted the IVth cranial 
nerves. These two foramina have a common opening on the 
outside. 
The olfactory nerves passed out by the widely open front of 
the bone. 
Text-figure 3. 
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The palate of Pariasaurus bombidens, X }. 
Viewed from above, the top of the skull being cut off about 5 em. above its 
dorsal surface. 
Reference-letters as before, with :—Mz., Maxilla; Pal., Palatine; P.V., Prevomer ; 
P.T'., Pterygoid; Trans., Transpalatine. : 
The Palate.—The general form of the palate has long been 
known, and the distribution of the teeth with which it is armed 
was fully described by Seeley (1892). 
R. 1870, which shows the sutures between the bones on the 
dorsal surface, 49426, which illustrates very well its general form 
and relation, and another specimen, collected by myself at 
Hottentots Rivier, enable me to complete our knowledge. 
Pterygoid.—The pterygoid is a large triradiate bone. It 
articulates by an immovable and very powerful junction with the 
basipterygoid process of the basisphenoid. 
