INDEX TO VOL. II. 
NOMENCLATURA ALPHABETICA. 
Abida . 
Acardia 
Acarus 
Acera . 
Achatina . 
Acmea 
Adelosina . 
Agarona . 
Agathirses 
AGATHISTIGUA 
ALATA 
Alcadia 
Alectryon . 
Alveolina . 
Amicula 
AMMONOIDES . 
Amphibulina . 
Amphipeplea . 
AMPHISTEGINA 
bo 
Ampullacera . 
Ampullaria . 
Ampulloidea . 
Amygdala 
Anaulax 
Ancillaria 
Anculotus 
Ancylus . 
ANGYOSTOMATA . . 
ANNELIDES 
Anomalina 
Anostoma 
Aplexus 
Aplustra . 
Aplysia 
APLYSIANA . 
Apollon me. = : 
APOROBRANCHIATA . 
Aporrhais 
to 
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