420 



INDEX 



Ctenophora, 17 

 Cuckoos, 298 

 Culex, 156 



fatigans, 157 

 Culicidae, 156 



Curled-thread weavers, 107 

 Cuttlefishes, 84 

 Cyanea, 17, 26 

 Cyclops, 91 

 Cyclostomata, 195 

 Cycloturus, 324 

 Cynipidse, 176 

 Cynocephalus, 375 

 Cynomys, 352 

 Cyprseidse, 82 

 Cypress, 90 

 Cysticercus, 38 

 Cytoplasm, 383 



Dactylethra, 233 

 Darwin, Charles, 388 



Erasmus, 387 

 Dasypodidae, 324 

 Dasypus sexcindus, 325 

 Dasyuridae, 321 

 Deer, 339 



DelphinidcB elphineraptus, 328 

 Dendrobates tindorius, 227 

 Dendrolagus, 322 

 Dermophis, 229 

 De Vries, 390 

 Diapheromera fernorata, 137 

 DictynidiB, 107 

 Didelphidffi, 321 

 Didelphys, 321 

 Dimorphism of spiders, 106 



of trochelminthes, 47 

 Dinophilea, 47 

 Dinosauria, 256 

 Diodon macidata, 204 

 Diplopoda, 112 

 Dipneumones, 106 

 Dipnoi, 208, 220 

 Dipodidae, 354 

 Diptera, 153 

 Dispersal of hydra, 20 



of starfish, 55 

 Dodo, 293 

 Dolomedes, 108 

 Dolphins, 328 

 Dormice, 353 



Dracuncuhis medinensis, 43 

 Dragon-flies, 129 



Drassidse, 106 

 Duck-bill, 320 

 Dugong, 325 

 Duplicidentata, 355 

 Dyticida;, 152 



Eagles, 294 

 Ear-shells, 82 

 Earthworm, 65 

 Ecaudata, 233 

 Ecdysis, 227 

 Echidna, 316 



aculeata, 319 

 Echinodermata, 50 

 Echinorhynchus, 44 

 Economic importance of annulates, 

 70 



of bats, 369 



of birds, 305-309 



of camels, 338 



of caribou, 341 



of cats, 365 



of coelenterates, 32 



of crustaceans, 99 



of deer, 343 



of fishes, 217-219 



of hawks, 295 



of hogs, 335 



of horses, 334 



of insectivores, 368 



of insects, 125 



of moUusks, 87 



of nemathelminthes, 47 



of platyhelminthes, 40 



of protozoans, 9 



of reindeer, 340 



of reptiles, 257 



of rodents, 356 



of sponges, 14 



of sturgeons, 210 



of tapirs, 332 



of whales, 329 



of yak, 349 

 Ectoderm, 17 

 Ectopistes migratorius, 293 

 Ectoplasm, 2 

 Edentata, 323 

 Eels, 213 

 Elapidai, 243 

 Electrotropism, 7 

 Elephant, 330 



mammoth, 331 

 Elephantiasis, 157 



