344 



EEPORT 1891. 



Notes on the Ammonites. By Mr. S. S. Buckman, F.G.S. 



Referring to the Transition-bed Ammonites Mr. Buckman says : — 

 [ihe specimens of Dactylioceias are very good. They show one thing 

 contii-uously, namely, that it "will not do to apply the term Commune 

 zone to the zone ahore the Falciferum zone, because, though no actual 

 specimens of commune are present, i.e., if one be strict in regard to 

 identification, yet there are certain forms much too close. "Your 

 researches, therefore, liave settled th^it point, and another name must be 

 given to what is now called the Commune zone. 



