Notices of Memoirs — G. A. Boulenger — Triassie Reptilia. 355 



premaxillaries. Doubts have been thrown on Huxley's interpre- 

 tation of the outer toothed bone of the skull, and it is important to 

 settle the question of its identification. The new material has 

 convinced the author that the teeth in the upper jaw are borne by 

 both the maxillary and the palatine as stated by Huxley. The 

 fossil shows well the elongate rhomboidal vacuity between the 

 pterygoid, ending at the point where they converge before diverging 

 again towards the quadrate, to the massive anterior branch of which 

 they are suturally united. 



Pig. 1. — Palatal view of skull of Sijperoclapedon Gorcloni, Huxley, 



ept. ectopterygoid ; j. jugal ; in. maxilla ; pal. palatine ; pm. premaxilla ; 



pt. pterygoid ; q. quadrate ; qj. quadrato- jugal ; v. vomer. 



As may be seen from the annexed restoration, the palate of 

 Syperodapedon bears great resemblance, in its general structure, to 

 that of the living Sphenodon, the principal differences, apart from 

 the dentition, residing in the smaller bony roof of the mouth and 

 the narrower vomers. 



2. Stenometopon Taylori, gen. et sp. nov. 



This name is proposed for a considerable portion of a skull of 

 a Ehynchocephalian, closely related to Hyperodapedon, and belonging 

 to the same family, EhynchosauridEe. Its length is 177 mm, and 

 its greatest width 160, One of the most striking features of ITypero- 

 dapedon as compared with its New Zealand ally, Sphenodon, is 

 its much broader and more massive skull. The skull of the new 

 Khynchocephalian, although agreeing in its general structure with 



