NEW EOCENE FOSSILS FROM THE SOUTHERN 

 GULF STATES 



BY 

 T. H. ALDRICH 



The species described in this paper are mostly from Alabama. 

 They present some interesting forms, and new genera from our 

 Eocene. Nearly all of them are rare. The types are in the 

 cabinet of the writer. I am indebted to Miss. E. G. Mitchell 

 of Washington, D. C. for the very striking and accurate fig- 

 ures of nearly all the species. 



Description of Species 



Cras satellites {Crassinella) aldrichianus , Harris sp. 



Plate I, fig's 1,2 



This little shell differs* somewhat from the typical form. 

 It has a less crenulated basal margin ; the anterior dorsal mar- 

 gin is more arcuate. Associated with it is another form (see 

 fi&- 3) which may take the name of C. clarke?isis. It has a 

 more regular dorsal margin, is coarsely sculptured, and has no 

 denticulation on the inner ventral margin. I am inclined to 

 leave it as a variety however. 



Woods Bluff, Ala. Also 6 miles east of Thomasville, Ala., 

 same horizon. 



Cardium ( Trachycardium) claibornensis . n. sp. 



Plate I, fig. 4 

 Shell large, covered with numerous ribs which are square 

 in section and ornamented with close-set, triangular imbrica- 

 tions, all ribs being covered except in the umbonal region. 

 The sunken spaces between the ribs are not half their width 



