INDEX OF GENERA. 



VOLUME I. 



This includes likewise names of subgenera, families, orders, classes and 

 phyla. All numbers refer to pages. Names of genera and subgenera regarded 

 as synonyms are printed in italics. 



Acanthonema, 691 

 Acanthopecten, 492 

 Acervularia, 68 

 Aclisina, 695 

 Acrogenia, 162 

 Acrophyllum, 60 

 Acrothele, 200 

 Acrotreta, 199 

 Actaeon, 806 

 Actaeonidae, 806 

 Actaeonina, 807 

 Actinodesma, 423 

 Actinopteria, 447 

 Actinostroma, 39 

 Actinotrypa, 164 

 Actinozoa, 47 

 Acus, 799 

 Adeonellopsis, 170 

 Adeorbiidae, 704 

 Adeorbis, 705 

 ^nona, 568 

 Akeratidae, 809 

 Alexia, 815 

 Allonema, 118 

 Allonychia, 432 

 Allorisma, 523 

 Alveolites, 91 

 Amauropsis, 721 

 Ambocoelia, 342 

 Ambonychia, 429 

 Amnigenia, 476 

 Amphigenia, 279 

 Amplexopora, 130 

 Amplexus, 58 

 Ampullina, 718 

 Amusium, 507 

 Anastrophia, 272 

 Anatimya, 531 

 Anchura, 750 

 Ancillopsis, 797 

 Anisomyon, 811 

 Anodonta, 480 

 Anolotichia, 123 

 Anomalina, 11 

 Anomalodesmacea, 522 

 Anomalodonta, 430 

 Anomia, 509 

 Anomphalus, 671 

 Anoplotheca, 349 



Antalis, 579 

 Anthozoa, 47 

 Anthracomya, 478 

 Anthracoptera, 477 

 Anthracopupa, 821 

 Aporrhaidae, 750 

 Aporrhais, 753 

 Area, 417 

 Archaeozonites, 822 

 Archanodon, 477 

 Archimedes, 147 

 Archinacella, 605 

 Arcopagia, 562 

 Arctica, 537 

 Aristerella, 518 

 Arthroclema, 152 

 Arthropora, 156 

 Arthrostylus, 152 

 Ascodictyon, 117 

 Aspidopora, 130 

 Astarte, 539 

 Astartella, 536 

 Astraeospongia, 17 

 Astrohelia, 104 

 Astylospongia, 14 

 Astyris, 761 

 Atactoporella, 127 

 Athyris, 352 

 Atremata, 188 

 Atrypa, 309 

 Aucella, 456 

 Aulacophyllum, 59 

 Aulopora, 78 

 Auriculidae, 814 

 Aurinia, 794 

 Avicula, 445, 447 

 Aviculopecten, 486 

 Aviculopinna, 435 

 Axinea, 418 

 Axonolipa, 27 



Bactropora, 155 

 Bakewellia, 438 

 Balanophyllia, 104 

 Barbarofusus, 775, 776 

 Barbatia, 417 

 Barrandella, 276 

 Bathyomphalus, 818 

 Batostoma, 136 

 824 



Batostomella, 133 

 Beatricea, 46 

 Bellerophon, 618 

 Bellerophontidae, 609 

 Bembexia, 647 

 Berenicea, 119 

 Bifiustra, 168 

 Billingsella, 210 

 Bilobites, 259 

 Bittium, 747 

 Blothrophyllum, 60 

 Botryllopora, 127 

 Brachiopoda, ^170 

 Brachiospongia, 17 

 Breviarca, 407 

 Bryozoa, 107 

 Bucania, 613 

 Bucaniella, 612 

 Bucanopsis, 622 

 Buccinofusus, 762 

 Buccinidae, 761 

 Buccinum, 761 

 Buchiola, 392 

 Bulbifusus, 783 

 Bulimorpha, 699 

 Bulla, 809 

 Bullidae, 809 

 Buskopora, 126 

 Byssonychia, 431 

 Bythopora, 133 

 Bythotrypa, 123 



Cadulus, 581 

 Calaurops, 662 

 Calceola, 77 

 Calcisphaera, 11 

 Calliostoma, 703 

 Callonema, 691 

 Callopora, 139 

 Calyptraea, 713 

 Calyptraphorus, 752 

 Camarella, 271 

 Camarophoria, 280 

 Camarotoechia, 283 

 Campeloma, 727 

 Campophyllum, 67 

 Camptonectes, 505 

 Cancellaria, 797 

 Cancellariidae, 797 



