1879.] NATURAL SCIENCES OF PHILADELPHIA. 211 



ON SOME NEW EOCENE FOSSILS FROM THE CLAIBORNE MARINE 

 FORMATION OF ALABAMA.. 



BY ANGELO HEILPRIN. 



The following species of fossils (with the exception of Ros'ellaria 

 Whitfieldi) were picked out from an accumulated mass of Clai- 

 borne sand and shell, deposited in the American Museum of Natural 

 History, New York City, and being of more than ordinary inter- 

 est, as in part pertaining to genera hitherto not recognized as 

 belonging to the formation, I have deemed them worthy of descrip- 

 tion. 



TEINOSTOMA, H. ,V A. Adams. 

 Teinostoma rotula, nob. PI. xiii., fig. 1. 



Shell orbicular, depressed ; polished ; whorls three, body-whorl 

 with an impressed line immediately beloAv the suture; umbilicus 

 small, surrounded by a broad callous area; aperture nearly cir- 

 cular ; inner lip expanded into a callus near the umbilical region. 



Diameter .2 inch. 



Claiborne, Alabama. 



This is the first species of Teinostoma described as such exist- 

 ing in the Eocene formations of the United States. Mr. Lea's 

 Rotella nana (Umbonium, Conrad), also from Claiborne, which I 

 have not had an opportunity to examine, may prove to be a 

 Teinostoma. 



DELPHINULA, Roissy. 

 Delphinula solaro'ides, nob. P. xiii., fig. 2. 



Shell turbinate, depressed, broadly umbilicate; whorls four, 

 channeled below the suture, and ornamented with obtuse ribs 

 radiating from about the centre of the upper surface ; umbilicus 

 with a central unrolling prominent crenulated line, and inter- 

 mediate finer lines ; margin crenulated ; peristome continuous, 

 trumpet shaped. Nacreous. 



Diameter \ inch. 



Claiborne, Ala. 



This species could readily be mistaken for a Solarium, from 

 all species of which, however, it is distinguished by its pearly 

 iridescence. 



