INDEX. 



ACAMAS 



Acardo 



Acasta 



Achatina 



Achelois 



Actynocrinites 



Adeona 



Agaricia 



Alcyonites 



Alcyonia, species of 



Alligators 



Alveolites 



Amber 



Amimomus 



Ammonellipsites 



Ammonites 



Amphibia 



Amphidesma . 



Amplexus 



Ampullaria 



species of 



Ananchytes 

 Anatifa 

 Anatina 

 Ancilla 



species of . 



Angulithes 



Anodonta 



Anomia 



Anoplotherium 



Antigua 



Antipatb.es 



Apiocrinites . 



Area . 



.... species of 



Arcacese 



Argonauta 



Aspergillum . 



Asphaltum 



Astarte 



