( 21 ) 
MIOCENE PERIOD. 
Various 
Localities. 
EOCENE PERIOD. 
Angers, Baden 
Ronca 
Angers 
Arapatack 
Angers. 
Hungary 
*? 
Various 
Localities. 
Valognes 
| Auvergne, 
Cantal 
Auvergne . 
Auvergne . 
Auvergne . 
ibid. . . 
ibid. . , 
Abbeville. "\ 
( Tours, 
\ Valognes 
Valognes . 
. J 
Valognes 
.} 
*? 
Alsace 
No. of Species in each Genus in the following Localities. 
13 
15 
17 
17 
