Aphrodite, 85. Aplysia, 114. Apus, 137. Aragonite, 29. Arcturus, 178. Argonaut, 125. Arion, 115. Aristeus, 158. Ascension Is., 147. Astræa, 49. Atlantic, 51. Atoll, 48. Attacus, 218. Attus, 172. Aurelia, 29. Auricle, 92. Avalon, 86. Avalon, Phosphorescence at, 86, 101. B Banks, Sir J., 157. Barnacle, 104. Barnacle, Goose, 134. Bean aphis, 200. Bee, 228. Beetles, 195. Beetles, Boring, 197. Bell Animalcule, 12. Bivalve, 91. Blind crustacean, 143. Bluebottle fly, 206. Book scorpion, 166. Brachiopoda, 81. Branchipus, 137. Brine shrimp, 137. Buffalo bug, 198. Bugs, 199. Bulimus, 112. Bumble bee, 223. Burgos crab, 154. Butterflies, 212. Byssus, 99. C Caddis worm, 185. Cardium, 103. Carpenter bee, 231. Caryophyllia, 47. Cassis, 110. Caterpillar, 164. Caves, Santa Catalina, 32. Centipede, 165. Cerithium, 103. Chætopterus, 86. Challenger, 147. Chamæleon, 143. Chinch bug, 198. Chiton, 101. Cicada, 200. Cilia, 11. Clam, Giant, 98. Cleodora, 116. Cochineal, 202. Cockle, 102. Cocoanut crab, 155. Colossendeis, 157. Conch, 106, 110. Cone, 110. Conus, 110. Coral, 44, 51, 53. Coral insect, 52. Cottony scale, 203. Cowry, 110. Crab, 42, 124, 156. Cranchia, 127. Crayfish, 130, 144. Crickets, 165, 191. Crinoid, 56. Crustacean, 128. Ctenactis, 46. Cteniza, 174. Cuttlefish, 117. Cyanea, 27. Cyclops, 135. Cypræa, 110. Cyprinæ, 136. D Daddy longlegs, 167. Darwin, 83. Decorative crab, 151. Dendronotus, 114. Dentalium, 116. Devilfish, 117. Doris, 114. Dragon fly, 180. E Echinus, 65. Eciton, 226. Edible crab, 148. Eolis, see Æolis. Erenberg, 77. F Fiddler crab, 149. Fierasfer, 71. Firmin, Point, 32. Firmin, Point, Phosphorescence at, 32. Firmin, Point, Waves at, 32. Flea, 211. Florida, 71. Flustra, 78. Fly, 204. Flying spider, 172. Foraminifera, 15. Fresh-water pearl, 98. Fungia, 51. Fusus, 111. G Gall crab, 152. Gammarus, 138. Garden Key, 44. Garden of the Gods, 227. Gecarcinus, 146. Giant clam, 98. Giant octopus, 123. Giant squid, 114, 118. Glacier flea, 178. Glass-bottom boat, 50. Glass sponge, 23. Gnat, 210. Goat moth, 221. Goniaster, 61. Gordius, 75. Gorgonia, 49, 53. Grapsus, 124, 147. Grasshopper, 190. Green crab, 149. Gulf of Mexico, 33. Gunther, 158. H Haliotis, 109. Halobates, 201. Helderberg, 53. Hermit crab, 152. Hibernation, 112. Holothurian, 72. Honey ant, 227. Horseshoe crab, 155. Howard, Dr., 207. Hymenoptera, 222. I Ianthina, 116. Insects, 159, 190. Anatomy of, 159. Larvæ of, 159. Music of, 190. Parts of, 159. Spiracles of, 159. J Jægar, 192. On locusts, 192.