INDEX OF SYNONYMS. 



Amphidesma decurtatum 

 securiforme 

 Anomia Jurensis 

 Astarte orbicularis 



pulla . 



rotundata 

 Avicula ovata . 



polyodon 



Cardita lunulata 

 similis 

 var. costata 

 Cardium Beaumonti 

 incertum 

 leevigatum 

 Madrid! 

 tninutum 

 striatum 

 Corbis Madridi 

 Corbula curtansata 

 depressa 

 striata 

 Cucullsea elongata 



Hirsonensis 

 minuta 

 rudis 



sublaevigata 

 Cyrena uuculiformis 

 Cytherea dolabra 



Donacites costatus 



PAGE 

 18 



20 

 29 



138 

 ib. 



105 



84 

 ib. 



24 



84 



53 

 20 

 ib. 

 69 

 67 

 137 

 58 

 56 



39 

 43 

 36 

 31 

 41 

 ib. 

 36 



