2 Watson, Notes on some British Mesozoic Crocodiles. 



appears to be the real outline of the bones. Their form 

 will be best understood from Figure i. The posterior 

 nares instead of being rounded, as they usually are in 

 typical members of the genus, are bounded anteriorly by 

 the nearly straight posterior borders of the palatines. 

 These form a bracket-shaped line with a notch in the 

 centre. 



The small scrap of pterygoid remaining shews a 

 median ridge. 



/'>^'. I. Steneosaunis stephani, Hulke. Sonievshat restored 

 drawing of the under surface of the type skull, x { 

 to show especially the form of the posterior nares and 

 llie area of the pterygoids. 



On the existing evidence it is impossible to determine 

 whether there was any trace of the shallow pit or depression 

 into which the posterior nares open in typical Steneosaurs 

 and still more markedly in Pelagoscxurus. 



