CLASSIFIED LIST OF THE SPECIES DESCRIBED IN THIS VOLUME. 



In this list the species from the Lowfi^ Marl Beds are indicated by the 

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

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

 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 TEREBRATULIDJ5. 



Genus Terebratula. 



T. Harlani Morton L. 



T. Harlani, var. fragilis Morton L. 



Genus Terebratulina. 



T. Atlantica Morton. .TJ. 



T. florida Morton 1 



T. lachryma Morton E. 



Genus Terebratella. 



T. plicata Saij L. 



T. Vanuxemi Lyell and Forbes L. 



253 



