40 Cincinnati Society of Natural Histo?y. 



THE TERTIARY FAUNA OF NEWTON AND 

 WAUTUBBEE, MIS?. 



By Otto Meyer and T. H. Aldrich. 



(Read June i, 1886.) 



The Eocene invertebrate fossils, described and enumerated 

 in the following, were collected in March, 1886, by O. Meyer in 

 Eastern Mississippi, near Newton, Newton County, and near 

 Wautubbee, Clarke County. A great part of the material from 

 Newton, however, was collected afterwards by Dr. E. A. Smith 

 and '1'. H. Aldrich. The deposit near Wautubbee was first 

 known to the Hon. L. R. Johnson, of the United States Geologi- 

 cal Survey. For a descrijition of the geological relations of these 

 strata see American Journal of Science, July, 1886. The type- 

 specimens of the new forms described are in our collections. 



Description of New Forms. 



In the following descriptions of univalves the term " trans- 

 verse " is understood to be rectangular to the suture. 



Glossophora. 



Dcntaliiini incisissinium, n. sp. 



Plate II Figure i. 



Smooth, polished, gradually tapering. Section circular. 

 Aperture with a long narrow slit. • 



Wautubbee. 



Cad III us abrupt us, n. sp. 



Plate II. Figure 2. 



Rather large, somewhat depressed. Inflation very near to 

 the larger aperture and suddenly decreasing. 



Newton, W^autubbee. 



The type specimen is from Newton. Form and position of 

 the inflation distinguish it from the other species of Cadulus of the 

 Southern Tertiary, 



Cadulus, sp. 



Plate II. Figure 3, 3^, 3/'. 



Two depressed fragments from Newton show an aperture 

 which is different from the other known apertures of Cadulus of 



