INDEX 



[Names of genera and subgenera regarded as synonyms are printed in italics, all others in Roman.] 



Abacocriniis, 194 

 AlmttiJi, 296 

 Aljlacomya, 449 

 Abra, 495 

 Abracrinus, 194 

 Abrotocrinus, 222 

 Acaeocrinus, 194 

 Acambona, 414 

 Acauthactinella, 62 

 Acantherpestes, 793 

 Acanthina, 558 

 Acanthinites, 648 

 Acantlioearis, 751 

 Acanthoceras, 669 

 Acanthocites, 513 

 Acanthocladia, 342 

 Acanthoclema, 344 

 Acanthoclymenia, 628 

 Acanthocrinus, 188 

 Acanthocyathus, 95 

 Acantliocystites, 150 

 Acanthodictya, 61 

 Acantholithus, 112 

 Acantlionautilu.s, 606 

 Acantliopleura, 513 

 Aciinthii,<j)ijngla, 62 

 Acanthotelson, 756 

 Acaiithoteuthis, 683 

 Acaiithothyris, 400 

 Acasta, 746 

 Avasie, 726 

 Acavus, 576 

 Acentrotremites, 172 

 Acervularia, 86 

 Aceste, 297 

 Acestra, 62 

 Acharax, 438 

 Achradocrinus, 219 

 Achiudocystites, 151 

 Achrochordocrinus, 232 

 Acila, 440 

 Acdeistoceras, 611 

 AcHsina, 538 

 Aeloeodictya, 61 

 Acmaea, 520 

 Acritis, 371 f 

 Acrochordiceras, 640 

 Acrocrinus, 201 

 Acrocului, 541 

 Acrogenia, 346 

 Acroidaris, 275 

 Acropora, 107 

 Acrosalenia, 279 

 Acrotliele, 376 

 Acrothyra, 376 

 Acrotreta, 376 

 Acrura, 256 

 Actaeonella, 566 

 Actaeonina, 566 

 Acteocine, 568 

 Acteoii, 565 

 Actinacis, 107 

 Actinocamax, 682 



Actinocei'ainus, 447 

 Actinoceras, 609 

 Actinoconchu.s, 418 

 Actinocriiius, 197 

 Actinodesnia, 444 

 Actinodiclya, 61 

 Actinoiloiita, 455 

 Actinomya, 468 

 Actiuopora, 322 

 Actinopteria, 448 

 Actinosepia, 688 

 Actinostoma, 341 

 Actinostreon, 450 

 Actinostronia, 122 

 , Actinotaxia, 326 

 Adacna, 490 

 Adelactaeon, 566 

 Adelnstrea, 101 

 Adeloblatta, 803 

 Adeloptlialiims, 783 

 Adeonella, 339 

 Adolfia, 410 

 Adniuiirid, 440 

 Aecliinina, 738 

 Aegor, 761 

 Aegliipe 405 

 Aeglina, 721 

 Aegoceras, 656 

 Aeolopneustes, 282 

 Aeropsis, 297 

 Aesclinidium, 810 

 Aesiocrinus, 225 

 Aesiocystis, 159 

 Aetea, 348 

 Aetliocystis, 157 

 Aetostreon, 450 

 Aganides, 631 

 Agaricia, 103 

 Agaricocrinus, 196 

 Agassiceras, 657 

 Agassizia, 296 

 Agassizocrinus, 224 

 Agathelia, 95 

 Agatheinera, 800 

 Agathiceras, 641 

 Agelacrinus, 159, 156 

 Agiud, 499 

 Aglaspis, 77ii 

 Aglithodictya, 61 

 Agnesia, 524 

 Agnostus, 710 

 Agoniatites, 630 

 Agraulos, 717 

 Agria, 482 

 Agriocrinus, 199 

 Agrion, 811 

 Aguthasia, 404 

 Aipocoias, 606 

 Akera, 567 

 Alaria, 550 

 Albertella, 717 

 Ahcto, 319 

 Alectrioii, 550 



Alectryonia, 450 

 Alexia, 574 

 Alipes, 551 

 AUageerinus, 209 

 Allionia, 237 

 Allocrinus, 191 

 Allocystites, 155 

 Allodesma, 470 

 Allomorphina, 29 

 Allonema, 318 

 Anonychia, 445 

 Allopagus, 469, 489 

 AUoprosallocrinus, 195 

 Allorhynchus, 398 

 Allorisma, 465 

 Alocolytoceras, 652 

 Aluta, 735 

 Alveolina, 39 

 Alveolites, 114 

 Alveopora, 107 

 Amaltheus, 659 

 Amaiiropsis, 543 

 Ambites, 633 

 Amblypneustes, 282 

 Amblypygus, 289 

 Amblysiphonella, 71 

 Ambocoelia, 412 

 Ambonycliia, 445 

 Amiella, 786 

 Amicula, 513 

 Amiskwia, 135 

 Amita, 444 

 Ammobaculites, 2(i 

 Ammodiscus, 25 

 Aminolagena, 25 

 Amnicola, 545 

 Amnigenia, 451 

 A)iwrphocystis, 152 

 Ainperleya, 530 

 Ampheristocrinus, 218 

 Amphiasti'aea, 98 

 Amphibola, 573 

 Aniphiceras, 657 

 Amphicliaena, 495 

 Amphiclina, 419 

 Amphiclinodonta, 419 

 Amphicoelia, 445 

 Amphicrinus, 205 

 Amphidesma, 495 

 Amphidonta, 450 

 Amphidromus, 576 

 Aiiiphigenia, 400 

 Amphilichas, 721 

 Amphion, 725 

 Amphipeltis, 758 

 Ampliipora, 124 

 Ampliispongia, 62 

 AmphistPgina, 34 

 Anipli i.^ili'ijilila, 385 

 AmphitUeliori, 59 

 Amphitomella, 418 

 Amphiura, 256 

 Ataplwra, 197 



Aniplioracrinus, 197 

 Aniplexopora, 336 

 Am plexus, 83 

 Ami)ulla, 561 

 Ampiillina, 543 

 Ainjiyx, 712 

 Amusium, 458 

 Amygdalocystites, 151 

 Aniynilispes, 793 

 Anabacia, 103 

 Anabaia, 417 

 Anadara, 443 

 Anagyiniiites, 645 

 Anancliytes, 292 

 Anapella, 498 

 Aiiaphragma, 339 

 Anarcestes, 629 . 

 Anasirenites, 648 

 Anaspides, 755 

 Anastoniopora, 342 

 Anastrophia, 394 

 Anathyris, 417 

 Aiiatimya, •^^'16 

 Aiiatina, 466 

 Anatinella, 498 

 Awitomites, 639 

 Aniizyga, 408 

 Ancluira, 551 

 Ancilla, 562 

 Ancillaria, 5<"i2 

 Aiicistroceras, 601 

 Aiicistrocrania, 379 

 Ancryopyge, 723 

 Anculosa, 548 

 Ancyloceras, 670 

 Aiicylus, 575 

 Androgynoceras, 656 

 Angaria, 529 

 Angelinoceras, 601 

 Anisactinella, 418 

 Anisocardia, 471 

 Anisocriniis, 203 

 Anisophyllum, 84 

 Anisothyris, 499 

 Anisotrypa, 335 

 Anodonta, 455 

 Anodontites, 455 

 AncKlontopsis, 470 

 Anolcites, 648 

 Anolotichia, 328 

 Anomactiiiella, 418 

 Anomalantlms, 286 

 Anomalina, 33 

 Anomalocaris, 733 

 Anonialoceras, 605 

 Anomalocriniis, 213 

 Anomalocystites, 150 

 Anonialodonta, 445 

 Anutiudoides, 72 

 Anonialospongia, 72 

 Anomia, 461 

 Anoinoclonella, 56 

 Anomphalus, 532 



