CLASSIFIED LIST OF THE SPECIES DESOEIBED IN THIS VOLUME. 



In this list the species from the Lower Marl Beds are indicated b}^ the 

 letter L; those from the Middle Marl Beds by M; those from the base of 

 the Upper Marls, which bed is included in the Cretaceous, by the letter U; 

 and those from the top layer, supposed to be Eocene, by the letter E. P. C. 

 indicates the Plastic Clays at the base of the Cretaceous or older, and U. C. 

 the clays near Fish House, 4 miles above Camden, New Jersey, which con- 

 tain the Unios. 



Class BRACHIOPODA. 



Family TEREBRATULID^. 



Genus Terebratula. 



T. Harlani Morton ]^ 



T. Harlani, var. fragilis Morton L. 



Genus Terebratulina. 



T. Atlantica Morton jj^ 



T. florida Morton f 



T. lachiyma Morton j^ 



Genus Terebratella. 



T. plicata Say j^^ 



T. Vanuxemi Lyell and Forbes L. 



253 



