MEGACEPHALUS AND P. BRACHYCEPHALUS. 



481 



Prof. Sollas expressed his sense of the generous way in which 

 Prof. Seeley had spoken of his paper. It was impossible to write a 

 paper without making use of material already published; but he 

 thought that there was but little put forward as new which was 

 not really so in his paper. He thought the Lacertilian affinities 

 were extremely well marked in the skull of Plesiosaurus. His de- 

 termination of the structure of the anterior part of the roof of the 

 mouth in P. megacephalus confirmed him in this opinion. 



