INDEX OF GENERA. 



Volumes I. and IL 

 In this index are included also names of subgenera, families, 

 orders, classes and phyla. The numbers refer to the volume and 

 page. Names of genera and subgenera regarded as synonyms are 

 printed in italics. The gender of each genus and subgenus is 

 indicated by the letters m (masculine), f (feminine), or n (neuter)- 



Acalyptus, m, II 446 

 Acantherpestes, m, II 419 

 Acanthichnus, n, II 441 

 Acanthoceras, n, II 194 

 Acanthoceratida, II 193 

 Acanthoclymenia, f, II 133 

 Acanthonema, n, I 691 

 Acanthopecten, m, I 492 

 Acanthotelson, n, II 398 

 Acari, II 414 

 Acerata, II 399 

 Acervularia, f, I 68 

 Acidaspis, f, II 311 

 Aclisina, f, I 695 

 Acridii, II 444 

 Acridioidea, II 443 

 Acrocephalus, m, II 457 

 Acrochordiceras, n, II 158 

 Acrocrinus, m, II 523 

 Acrogenia, f, I 162 

 Acrophyllum, n, I 60 

 Acrothele, f, I 200 

 Acrotreta, f, I 199 

 Actaeon, m, I 806 

 Actaeonidae, I 806 

 Actaeonina, f, I 807 

 Actinoceras, n, II 114 

 Actinocrinus, m, II 524 

 Actinodesma, n, I 423 

 Actinopteria, f, I 447 

 Actinostroma, n, I 39 

 Actinotrypa, f, I 164 

 Actinozoa, I 47 

 Acus, f, I 799 

 Adeloblatta, f, II 434 

 Adeonellopsis, f, I 170 

 Adeorbiidae, I 704 

 Adeorbis, m, I 705 

 Adephaga, f, II 448 

 Adiaphtharsia, f, II 439 

 Adiphlebia, f. II 433 

 Adiphlebidae, II 433 

 ^chmina, f. II 345 

 ^-gialia, f, II 447 

 .Enona, f, I 568 



Aganaster, m, II 571 

 Aganides, m, II 138 

 Aganidida, II 138 

 Agaricocrinus, m, II 533 

 Agassizocrinus, m, II 514 

 Agathemera, f, II 444 

 Agelacrinus, m, II 472 

 Aglaspis, f, II 402 

 Agnostus, m, II 256 

 Agoniatites, m, II 135 

 Agoniatitida, II 135 

 Agoniatitidae, II 135 

 Agraulos, m, II 278 

 Agrion, n, II 450 

 Akeratidae, I 809 

 Albertella, f, II 274 

 Alexia, f, I 815 

 Allonema, n, I 118 

 Anonychia, f, I 432 

 Alloprosalocrinus, m, II 



541 

 Allorisma, n, I 523 

 Alphaeus, m, II 389 

 Alveolites, m, I 91 

 Amara, f, II 448 

 Amauropsis, f, I 721 

 Ambocoelia, f, I 342 

 Ambonychia, f, I 429 

 Ammonoidea, II 133 

 Amnigenia, f, I 476 

 Amphigenia, f, I 279 

 Amphilichas, f, II 308 

 Amphion, m, II 321 

 Amphipeltis, f, II 398 

 Amphipoda, II 397 

 Amphitura, f, II 571 

 Amphoracrinus, m, II 527 

 Amplexopora, f, I 130 

 Amplexus, m, I 58 

 Ampullina, f, I 718 

 Ampyx, m, II 259 

 Amusium, n, I 507 

 Amygdalocystites, m, II 



462 

 Amynilispes, m, II 419 



Analcites, m, II 159 

 Ananchytes, m, II 596 

 Anastrophia, f, I 272 

 Anatimya, f, I 531 

 Anchura, f, I 750 

 Ancillopsis, f, I 797 

 Ancyloceras, n, II 199 

 Ancyloceratida, II 198 

 Ancyrocrinus, m, 11 569 

 Anisoceras, n, II 208 

 Anisomyon, m, I 8ii 

 Anisoptera, II 450 

 Annelida, II 234 

 Annulosa, II 234 

 Anobium, n, II 447 

 Anodonta, f, I 480 

 Anolotichia, f, I 123 

 Anomalina, £, I 11 

 Anomalocaris, f, II 333 

 Anomalocrinus, m, II 501 

 Anomalodesmacea, I 522 

 Anomalodonta, f, I 430 

 Anomia, f, I 509 

 Anomphalus, m, I 671 

 Anoplotheca, £, I 349 

 Antalis, f, I 579 

 Antherophagus, m, II 447 

 Anthomya, f, II 455 

 Anthonomus, m, II 446 

 Anthozoa, I 47 

 Anthracomarti, II 415 

 Anthracomartus, m, II 415 

 Anthracomya, f, I 478 

 Anthraconectes, m, II 411 

 Anthracoptera, f, I 477 

 Anthracopupa, f, I 821 

 Anthracothremma, n, II 



433 

 Anthracothremmidae, II 433 

 ^Anthrapalaemon, m, II 385 

 * Ant-lions, II 451 

 Ants, II 445, 449 

 Aorocrinus, m, II 546 

 Aparchites, m, II 343 

 Aphaenogaster, f, II 449 



