54 



ADDITION TO THE SYNOPTICAL LIST GIVEN AT PAGE 203 OF FIRST 

 SUPPLEMENT TO " THE CRAG MOLLUSCA." 



Species and varieties new to the Synoptical List are in Koman letters. Species already in the Synoptical List are in 

 italics, and are only inserted to indicate their occurrence in some one or other of the formations, referred to in the separate 

 columns, beyond what is specified in the original list. Such of the latter as are marked f are given in the Lower Glacial 

 column, on the authority only of Mr. C. Keid's paper, on the " Cromer Pliocene," in the ' Geological Magazine ' for July, 

 1877. 



REMARKS. 



C Derivative in Red Crag of Sut- 

 ton; possibly derivative also 

 (. at Walton. 



:S. Greenlandicum, Chem. sec, 

 Jeffreys Ann. and Mag. Nat, 

 Hist., 1876, p. 323. 



Derivative. 



Derivative in Red Crag. 



Derivative. 



:Trop7ion Norwegians of the 

 synoptical list. 

 Derivative at Waldringfield. 



Derivative. 



Possibly the same as pannus. 



Derivative. 

 Derivative. 



Derivative. 



