PEEFACE. 



The following catalogue of the Fossils of the Cin- 

 cinnati Group, is a compilation from the various 

 catalogues which have appeared from time to time. 

 These were by Mr. U. P. James, Mr. S. A. Miller, 

 Mr. E. O. Ulrich, and Messrs. Wetherby and Mickle- 

 borough. Besides the fossils of these lists, there have 

 been incorporated in this one all the species de- 

 scribed up to November 1, 1881, and published in the 

 Journal of the Cincinnati Society of Natural History and 

 elsewhere. 



The object in view in the printing of this list, is to 

 have it answer as a check list of the fossils of the 

 Cincinnati Group; and to serve to show the species 

 of the Group represented in the cabinet of the society. 

 The species in the cabinet are marked with an aster- 

 isk (*) for good specimens, and a dagger (t) for poor 

 specimens. Those without any mark are not repre- 

 sented at all. The genera of the various classes, and 

 the species of the genera, have been arranged alpha- 

 betically for convenience in reference. A number of 

 Mr. Ulrich's species, taken from his catalogue, have 

 not as yet been described. Such species are indicated 

 by a section mark (§) at the end. 



JOS. F. JAMES, 



Custodian Cincinnati Society of Natural History. 

 November 15, 1881. 



