THE CARBONIFEROUS SYSTEM. 99 



Sanguinolites seolus Hall. 



S. obliquus Meek. 



Grammysia Hanibalensis Shum. 



G. rhomboidalls Meek. 



G. ventricosa " 



Pterinea Newarkensis " 



Prothyris Meeki Win. 



Promacbrus Andrewsi Meek. 



Platyceras Lodiensis " 



Pleurotomaria textiligera " 



Fenestella delicata " 



F. multipora var. Lodiensis " 



Ptilodictya Romingeri " 



RADIATES. 



Actinocrinus Daphne Hall. 



A. helice " 



A. Eris „ " 



A. viminalis " 



Platycrinus contritus " 



P. graphicus " 



P. Richfleldensis H. and W. 



P. lodiensis H. and W. 



Forbesiocrinus communis Hall. 



F. Kelloggi '■ 



Poteriocrinus crineus " 



P. pleias " 



P. (Scaphiocrinus) Corycia " 



Scaphiocrinus (Poteriocrinus) JEgina " 



S. ( " ) Lyriope « 



S. subcarinatus " 



S. subtortuosus " 



Zeacrinus paternus " 



Z. Merope " 



Platycrinus Bedfordensis H. and W. 



LOWER CARBONIFEROUS LIMESTONE. 



In the description which has been given of the Waverly; group, its 

 relations to the Lower Carboniferous rocks of Pennsylvania, 1 " Kentucky, 

 Tennessee, and Illinois have been briefly referred to, and i* ,nas been 

 said that the Waverly can be shown to be continuous with the mechani- 

 cal sediments of the Lower Carboniferous series in all the surrounding 

 States. But in all these States, except Pennsylvania, shales and sand- 

 stones form only a part of the Sub-Carboniferous formation, and in the 

 region lying south and west of Ohio the calcareous member of the group 

 becomes of greatly preponderating importance. 



