INDEX 



5^3 



Curtius, 535 



Cutaneous sensibility, 476 

 Cuticle, 107 

 Cuvier, 514 

 Cyanea arctica, 68 

 Cycloid scales, 254 

 Cyclops, 96, 171 

 Cyclostomata, 221, 222 

 Cyclostomes, 222 

 Cynthia partita, 211 

 Cypris, 170 

 Cytoplasm, 5 



DADDY-LONG-LEGS, 201 

 Danforth, C, 537 

 Daphnia pulex, 171 

 Darters, 339 

 Darwin, C, 119, 515 

 Darwin, E., 513 



Darwin's Pangenesis Theory, 517 

 Dawson, A. B., 456 

 Dawson, J. A., 41, 43 

 Decapoda, 165, 173 

 Dendrites, 473 

 Dendrocoela, 72 

 Dengue, 191 

 Depth of water, 490 

 Dermal teeth, 231, 253 

 Dermis, 427 

 Desor's larva, 220 

 Determinants, 518 

 Detlefsen, 542 

 Detweiler, 299 

 Development of Aurelia, 63 

 Development of backboned animals, 530 

 Devonian Age, 264 

 De Vries' " Mutations-Theorie," 524 

 Diadem spider, 203 



Diagram of animal sperm, 463; matura- 

 tion, 505 

 Diamond back rattlesnake, 323 

 Diamond back terrapin, 305 

 Dichorial twins, 535 

 Dictophyme renale, largest nema, 92 

 Diffusion, 5 



Digestion in the Ruminant, 433 

 Digestive system, 428 

 Digestive system of birds, 359 



Digestive system, grasshopper, 183 



Digestive system of lobster, 165 



Digestive system of skate, 232 



Digitalis and amphibia, 301 



Digitigrade, 422 



Dihybrid, 521 



Dinobryon, 28 



Dinosauria, 331 



Diopatra, 102, 103 



Diphycercal tail, 255 



Diploid, 503 



Dipnoi, 250 



Diptera, 188 



Direct cell division, 500 



Discoidal, 508 



Dispersal of small forms, 482 



Dissected grasshopper, 182 



Distribution, earthworms, 117 



Dobson fly, 185 



Dodds, G., 171 



Dodos, 344 



Dog, 491 



Dogfish, 225 



Dogs (domestic), 388 



Doliophis, 319 



Dolley, D., 479 



Dolley, W., 193 



Dolphin, 410 



Domesticated reindeer, 403 



Domestication of animals, 491 



Domm, 444 



Do mother snakes swallow their young?, 



329 

 Donkeys, 491 

 Doodle bug, 109 

 Dormouse, 394 

 Dorsal hearts, 109 

 Dorsal pores, iii 

 Dorsal view of dogfish brain, 238 

 Dourine, 29 

 Draco volans, 311, 312 

 Dracunculus medinensis, 96 

 Dragon flies, 179 

 Drosophila melanogaster, 192 

 Drum-fish, 253 

 Duck, 339, 495 

 Duck-bill, 374 

 Du Chaillu, 414 



