INDEX. 
59!) 
Conus, principal forms of, 417. 
Cook’s discoveries, 48, 55. 
Coral and living polypus, 131. 
Coral fisheries, 139. 
Coral islands, 22. Ileefs, 23. 
Coralline spicula, 132. 
Corallines, 121. 
Cornularia cornucopia, 146. 
Corpuscles from which young polypiers 
emanate, 138. 
Corystes cassivelaunus, male, 483. 
Female, 484. 
Cothurnia pyxidiformis, 103. 
Crabs, their habits, mode of attacking 
cocoa-nuts, 478. Travelling Crabs, 479. 
Propagation, 480. 
Cramp-fish (Torpedo marmorata), 504. 
Crinoidea, 272. 
Cruelty to Oysters, 334. 
Crustaceans, 473. Their organization, 
474. Breathing apparatus, 476. De- 
structive habits, 476. 
Crystatella mucedo, 309. 
Ctenophora, 200, 256. 
Cultivation of Oysters, 337. 
Currents of the ocean, their causes, 27, 
31, 32. Bifurcation of currents, 37. 
Cuttle-fish, 446. Described, 465. Its 
pigments, 464. Habits, 467. 
Cyclobranchial gasteropoda, their organi- 
zation, 437. 
Cyclones, 36. 
Cyelopteris, 536. 
Cyclostoma, 499. 
Cydippa pilens, 259. 
Cyprasa, principal forms of, 418. 
capensis, C. testudinaria, C. nu- 
cleus, and C. pantherina, 421. 
Cyprsea coccinella, 419. 
tigris aud animal, 419. 
. undata, C. zigzag, C. moneta, and 
C. Madagascariensis, 420. 
Cytherea, principal forms of, 3 < 8. 
geographica, 379. 
Dab (Platessa limanda), 542. 
Dactylopora cylindracea, 87. 
Darwin’s observations at Tierra del Fueg'o, 
172. 
theory of Coral islands, 24. 
theory of subsidence, 172. 
Daughter of the sea, 139. 
Davis’s discoveries, 47. 
Dead men’s fingers, 146. 
Death in the ocean, 64. 
Decapoda, their organization, 452. 
Decomposition of Infusoria, 99. 
De Haven’s search for Franklin, 61. 
Delphiu.uk spkxrula, 415. 
Dendropliylla ramea, 162. Magnified, 
163. 
Density of salt water, 18. 
Dentalina communis, 82. 
Depth of the sea, 3. 
Depths of oceanic storms, 66. 
Diodon pilosus, 624. 
Diphydiu, 244. 
Disaster of the San Francisco, 36. 
Discobolida), 536. 
Discophora, 200. 
Distribution of land and water, 3. 
Dog-fish (Acanthias vulgaris), 513. 
Donax trunculus, 323. 
rugosus and D. denticulatus, 377. 
Drag-net employed in Oyster fishing, 
336. 
Dujardin’s discoveries, 81. 
D’Urville’s voyages, 48, 55. Adelia’s 
Land, 66. 
Dykes of Holland undermined, 385. 
Early animal life, 64. 
Eokineis remora, 536, 537 . 
Echinodermata, 261. 
Echinoidse, 282. Armament, 282. Ske- 
leton and masticating apparatus, 290. 
Echinus esculentus, 286. 
— mamillatus, without spines, 
284. 
Echinus mamillatus, with spines, 283. 
Edible Snails, 393. 
Edwardsia calimorpha, 193. 
Effects of hurricanes, 44. 
I Eggs of Sepia officinalis, 467. 
