_Chamæleon_, 105; structure and habits of, 106, 107. Chauliodus, a deep-sea fish, 47; _figured_, _see frontispiece_. Chauvin, Marie von, cited, 81. Chimæra between sharks and sturgeons, 41. Chimpanzee, home of the, 253. Chinchillas of South America, 225. Circulation of blood in frog, 76. _Clavelina, larval form of_, 14. _Claws, retractile of felines_, 289. Climbing birds, paired toes of the, 163; build in tree-holes, 164. Clinging fish, 51, 57, 58. Coal-forests, amphibians of the, 82. Coast fish, 57. Cobra, enemies of the, 121. _Cobra di Capello_, 118. Cold blood, the cause of, in the frog, 76. Cold-blooded life in reptiles, 90; cold-blooded vertebrates, 24. Colours, protective, 347. _Colugo, a flying insect-eater_, 231. Conger eels, 49. Conodonts, probably lamprey’s teeth, 19. Cope, Prof., cited, 212, 190. _Cormorant, figured_, 144. Coryphæna or dorado, 53. Cow chewing the cud, 259. Cranes, migrations of, 152. Creation a gradual change, 336. Creepers, 172. Creative power, ever silent working of the, 336; high conception of the, 345. _Crocodile_, 108; care for her young, 110; habits and structure of the, 108. Crop of pigeons, 161. Crustaceans, huge, in time of early fish, 37. Cuckoo, sometimes builds a nest, 166. Cud, chewing the, 259. Cumberland, Mr., on vitality of ant-bear, 205. Curlews, wading birds, 148. Cyclostomata, round-mouthed fishes, 16. Dace, 65. Dactylopterus, or flying gurnards, 55. Darwin, on blood-sucking bats, 237; on Galapagos tortoises, 101; on evolution, 345. D’Azara on ant-bear, 205. Deep-sea fish, 47–50; rising at night, 50. Deer, growth of antlers of, 271; range of, 273. Depth at which fish live, 49. _Desman_, 226. Devotion in animals, 348–352. Dingo dog, probably brought to Australia, 194. Dinichthys, a huge Devonian fish, 40. Dinocerata, ancestors of elephants and hoofed animals, 260. Dinornis, extinct wingless bird, 140. Dipper, or water-ouzel, 172. Dipterus, a large ancient fish, 39. Disk of the Remora, 52. Dodo, flat-breasted pigeon, 161. Dog, descended from wolves and jackals, 286. Dogfish, 28. Dolphins travel in shoals, 323. _Dorado pursuing flying-fish_, 54. Doras, a land-travelling fish, 66. _Dromatherium, jaw of_, 183. Duck, structure of the, 141. _Duck-billed platypus and its home_, 188; the lowest type of milk-giver, 188. Dugong, a tusked sea-cow, 314. Dunlins, wading-birds, 148. _Eagle bringing food to its young_, 175. Eared-seals, history of the, 310. _Echidna_, 188; a low milk-giver, 190. Edentata, low and antiquated forms, 201; former history of, 201. Eels and eel-fares, 66. Efts, huge, of olden times, 82; or newts of our ponds, 78. Egg-birth, dangers of, 184.