Description of Some Cincinnati Fossils. 



155 



lower than we have ever known Cra?iia leslia to be found. 

 We do not know what, if any value, as a specific character, 

 to place on the transverse ridges, but the broad convexity of 

 the dorsal valve, and fine, dense, radiating striae, will readily 

 distinguish the species from any other that has been described. 



The specific name is in honor of August Albers, an active 

 Cincinnati collector and artist. 



Hyoeithes versaieeesensis n. sp. 



Plate 8, Fig. 20, magnified four diameters ; Fig. 21 ', transverse 

 section a?id convex side of a fragment magnified four diam- 

 eters ; Fig. 22, flattened side of same magnified four diam- 

 eters. 



This is a small species, ordinarily about two-tenths of an 

 inch in length, and never exceeding three-tenths of an inch 

 in length. Transverse section subtrigonal, and sometimes 

 one angle becomes so obtuse as to make a transverse section 

 planoconvex. One side is always much wider than either of 

 the others, and the angles adjacent thereto are usually much 

 more acute than the other one. The broad side is slightly 

 convex. The apex is sharp-pointed. All our specimens are 

 casts and very smooth. While there are not many characters 

 to ascribe to this species, nevertheless it is doubtless a 

 Hyolithes quite different from anything hitherto described. 



It is quite common in the upper part of the Hudson River 

 Group, at Versailles, Indiana, associated with Palczoconcha 

 faberi, Cyclora pulcella, and other small fossils. It is in the 

 collections of both authors. 



Hyolithes (?) dubius n. sp. 



Plate 8, Fig. 23, transverse sectio?i and side view, magnified in 

 length four diameters and in width three diameters. 



This is a very small species, rarely exceeding two-tenths of 

 an inch in length. Transverse section circular. It increases 

 very little in size from the commencement at an obtuse point. 



