IK"DEX. 



Acorn-shell, 106. 

 Actinia, 69. 

 Alcyonidium, 112. 

 Amoroecium, 58. 

 Amphitrite, 108. 

 Angler, 123. 

 Anomia, 47. 

 Arbacia, 77. 

 Argonaut, 15. 

 Ark-shell, 50. 

 Asterias, 73. 

 Astrangia, 72. 

 Auger-shell, 29. 

 Aurelia, 66. 



Balanus, 106. 

 Barnacles, 102. 

 Batraohus, 122. 

 Beach-flea, 95. 

 Belone, 125. 

 Birgo, 85. 

 Boltenia, 56. 

 Bopyrus, 96. 

 Botryllus, 57. 

 Brittle-stars, 75. 

 Buccinum, 20. 

 Bugula, 112. 



Calamary, 9. 

 Callinectes, 85. 

 Campanularia, 62. 

 Cancer, 85. 



Caprella, 96. 

 Carcharias, 121. 

 Caudina, 80. 

 Cerianthus, 71. 

 Chalina, 115. 

 Chilomycterus, 126. 

 Cirratulus, 108. 

 Clam, 32. 

 Cliona, 115. 

 Corals, 71. 

 Coronula, 107. 

 Crabs, 81. 

 Crangon, 94. 

 Crepidula, 30. 

 Crisia, 113, 

 Crucible-shell, 32. 

 Ctenophora, 67. 

 Cuttle-fishes, 8. 

 Cyanea, 65. 

 Cynthia, 66. 



Dactylometra, 64. 

 Diodon, 126. 

 Diplothyra, 40. 

 Dog-whelk, 21. 

 DoUar-flsh, 124. 

 Donax, 44. 

 Drill, 30. 



Echinarachniua, 75. 

 Egg-fish, 125. 

 Escharina, 111. 



127 



