48 



Trans. Acad. Sci. of St. Louis. 



of these species are present in Yellow Sandstone strata at 

 Burlington, Iowa. 



Thirteen species of the twenty-four, or 54%, occur in the 

 faunas of three of the divisions of the Waverly series in Ohio, 

 and of these thirteen, six species have not hitherto been 

 recorded from the Kinderhook of the Mississippi Valley. 

 The stratigraphic position of these thirteen species in Ohio is 

 as follows : — 



I. Upper part of Berea Shale. 



Chonetes cf . tumidus. 

 Productella concentrica. 

 Spirt fer marionensis. 

 Pernopecten cooperensis, 



II. Upper 50 feet of Cuyahoga Shale. 



Athyris lamellosa. 

 Palaeoneilo truncata. 

 Edmondia hurlingtonensis. 

 Tropidodiscus cyrtolites. 



