120 



INDEX OF GENERA. 



Anthura, 56. 



Anthus, 103. 



Antilocapra, 111. 



Antipathes, 22. 

 *Apatornis, 105. 



Aphis, 66. 



Aphrodite, 46. 



Aphrophora, 66. 

 *Apipcrinus, 32. 



-dpw, 71. 



Aplysia, 81. 



Aplysina, 9. 



Aporrhais, 81. 



Appendicularia, 75. 



Apsilus, 42. 



Aptenodytes, 99. 



Apteryx, 99. 

 *Aptychopsis, 53. 



Apus, 53. 



Aquila, 104. 



^Ira, 102. 



Arachnactis, 22. 



Arbacia, 27. 



^trca, 78. 



Arcella, 4. 

 * Archceocidaris, 27. 

 *Archceopteryx, 105. 



Archaster, 29. 

 *Archegosaurns, 94. 

 *Archiulus, 64. 



Arctomys, 115. 



./IrctarzM, 56. 



Ardea, 101. 



.4rem'cofo, 46. 



Argiope, 11. 



Argonauta, 84. 



Armadillo, 57. 



Artemia, 53. 



Artemis, 79. 

 *Asaphus, 54. 



Ascaris, 41. 



Ascidia, 75. 



Asellus, 56. 



A situs, 69. 



Asinus, 110. 



Aspergillum, 79. 



Aspidodiadema, 27. 



Aspidisca, 8. 



Asplanch.no,, 42. 



yl stacus, 58. 



Astarte, 79. 



Asterocanthion, 29. 



Asterias, 29. 



^.simwa, 29. 



Asteronyx, 30. 



Asterophyton, 30. 



Asthenosoma, 27. 



_4sfrmz, 22. 



Astropecten, 29. 



Astrorhiza, 5. 

 *Athyris, 11. 



Atlanta, 82. 



Auchenia, 111. 

 *Aulocopium, 10. 



25. 



Aurelia, 20. 

 ^Mric^a, 82. 

 Autolytus, 46. 

 ylw'cMto, 78. 

 Axinella, 10. 



*Bactrites, 84. 

 *Baculites, 84. 



Balcetia, 109. 



Balcenoptera, 109. 



Balanoglossus, 47. 



Balanophyllia, 22. 



Balanus, 49. 



Balatro, 42. 



Balistes, 88. 



Basiliscus, 97. 



Bassaris, 113. 



Bathycrinus, 32. 



Bathygadus, 87. 



Bdella, 61. 

 *Belemnitella, 84. 

 *Belemnites, 84. 

 *Belodon, 98. 



eroe, 25. 



Birgus, 59. 



^teto, 67. 



jBoa, 95. 



Bolina, 25. 



Bombinator, 94. 



Bombus, 71. 



Bombyx, 70. 



Bonellia, 42. 



Bopynts, 57. 



Borlasia, 39. 



Bosmina, 52, 53. 



Botaurus. 101. 



Bothriocephalvj, 36. 



Bothrops, 96. 



Botryllus, 76. 



Bougainvillea, 16. 

 * Bourgueticrinus, 32. 



Brachionus, 42. 



Bradypus, 108. 



Branchiobdella, 45. 



Branchipus, 53. 



Brisinga, 29. 



Brissus, 28. 

 *Brontotherium, 110. 



Bubalits, 111. 



5it6o, 104. 



Buccinnm, 81. 



MCCO, 102. 



^M/O, 94. 



Bugula, 74. 



Bulimina, 6. 



BvMmus, 82. 



wZte, 81. 



Bungarus, 96. 



Bursaria, 8, 9. 



.ewieo, 104. 



Buthus, 62. 



Ccecilia, 92. 



