INDEX 



TO THE GENERA AND SPECIES DESCRIBED. 



Page, 

 losa Cincinnatiensis, 



Lea, 128 



contorta, Lea, 128 

 Coosaensis, Lea,128 

 corpulenta, A., 127 

 costata, Anth., 126 

 dentatus,Couth.l27 

 dilatata, Con., 127 

 dissimilis, Say, 126 

 elegans, Anth., 129 

 flammata, Lea, 129 

 Foremani, Lea, 129 

 formosa, Con., 129 

 gibbosa, Lea, 128 

 globula, Lea, 128 

 inflata, Lea, 127 

 Kirtlandiana, 



Anth., 127 



Lewisii, Lea, 129 

 ligata, Anth., 130 

 melanoides, C., 127 

 monodontoides, 



Conrad, 127 

 nigrescens, C, 127 

 ornata, Anth., 129 

 patula, Anth., 130 

 pi eta, Conrad, 129 

 pinguis, Lea, 128 

 planospira, A., 129 

 plicata, Con., 126 

 prasrosa, Say, 128 

 pumila, Con., 278 

 Rogersi, Con., 127 

 rubiginosa, L., 126 

 Showalterii, L., 126 

 squalida, Lea, 130 

 subglobosa, S., 128 



385 



