BY K. TATK AND W. L. MAY. 



46^ 



Acanthocha'tes 



Acanthochites 



Adis 



Acmaea ... 



Actagon ... 



Actceopyramis 



Acus 



Adamsia ... 



Adelacteon 



Adeorbis ... 



uEsopu/i . . . 



Agnewia . . . 



Akera 



Alaha 



Alexia 



Alicia 



Allportia ... 



Alvania .. 



Amalthea ... 



Amphibola 



Amphichcena 



Amphiclesma 



Amphisphyra 



AmjmUncera 



Ampullaria 



A rnpuUarina 



Anailis 



Anapa 



Anapella .. 



Anatiiia ... 



Ancilla 



Ancillaria 



Anomalocardia 



Aplysia 



Apollo 



Area 



A rcopagia 



Arcoperna 



Argobncciiium 



Argonauta 



Artemis ... 



Aspergillum 



Assiminea 



Astele 



Astralium... 



Ataxocerithium 



347, 



INDEX (OF GENERA). 



(Names in italics are Synonyms.) 



PAGE 



443 



414, 443, 444 

 384, 385 

 .. 411 

 .. 415 

 ... 443 

 ... 448 

 ... 358 

 415, 448 

 390, 443, 458 

 ... 443 

 353, 354, 445 

 417, 460 

 388, 443 

 419, 443 

 ... 422 

 ... 418 

 .. 448 

 ... 377 

 ... 418 

 ... 451 

 ... 424 

 ... 417 

 ... 418 

 ... 418 

 ... 443 

 ... 451 

 ... 424 

 424, 451. 452 

 423, 451 

 364, 365, 443 

 .. 443 

 ... 436 

 417, 418, 443 

 .. 355 

 349,430, 451 I 

 ... 451 

 ... 439 I 

 ... 355 

 350, 443 

 ... 428 ! 

 .. 420 ! 

 895, 449 i 

 ... 403 

 400, 445, 448, 450 

 ... 386, 445 



