Aldrich, Eocene Fossils 



ried on a concave plate or shoulder. Aperture smooth within. 

 Length 2 ; breadth of body- whorl 3 mm. 

 Hatchetigbee Bluff, Tombigbee River, Ala. 



Bittium (Stylidium) anita, n. sp. 



Plate II, fig. 6 



Shell small, rather solid ; whorls seven to eight ; apex 

 pointed, embryonic whorls smooth, the balance with six or 

 more spiral impressed lines ; suture distinct, whorls slightly 

 shouldered ; aperture ovate spirally striate within ; columella 

 somewhat bent and reflected below ; canal slightly twisted. 



Length of largest specimen 5.5 ; breadth 2 mm. 



Six miles east of Thomasville, Ala. Woods Bluff hori- 

 zon. 



Thais clarkensis n. sp. 

 Plate III, fig, 2 



Shell small, whorls six, the first three and a half smooth, 

 embryonic, the others marked by slight folds axially raised; 

 shell somewhat shouldered at the suture ; body-whorl expand- 

 ing rapidly ; outer lip bordered by a raised and reflected 

 process, flattened somewhat within and carrying a few rais- 

 ed but very small tubercles on the inner part of their edge ; 

 columella slightly concave with a constriction at the beginn- 

 ing of the canal which is is short, rather deep and bent to 

 the left ; callus rather strong, broken at base, exposing a 

 slight umbilicus, but probably in perfect specimens the um- 

 bilicus is covered. A few faint spiral spaces appear on the 

 body-whorl and the next younger. 



Height 9 ; breadth of body- whorl 7 mm. 



Woods Bluff horizon six miles east of Thomasville, Ala. 



