INDEX. 



669 



Cyprididje, 423 

 Cypridina, 423 

 Cypridiiiidae, 423 

 Cyprinidse, 576 

 Cypris, 423 

 Cypselidae, 616 

 Cypselomorphse, 616 

 Cyrtidae, 196 

 Cyrtophilus, 481 

 Cysticercoid, 285 

 Cysticercus, 278, 284 

 Cystid, 322 

 Cystidea, 342 

 Cystoflagellata, 203 

 Cystonectse, 244 

 Cytoblast, 58 

 Cytopharynx, 183 

 Cytopyge, 183 

 Cytosporidae, 213 

 Cytostome, 183 



Dactylethra, 588 

 Daddy long-legs, 450 

 Daphnia, 417, 418 

 Daphnidae, 417 

 Dart sac, 376 

 Darwin, 23 

 Darwinian theory, 25 

 Dasyatis, 572 

 Dasypodidae, 636 

 Dasypus, 636 

 Dasyuridfe, 633 

 Dasyurus, 633 

 Datames, 450 

 Decapoda, 394, 429 

 Deer, 642 

 Degeneration, 167 

 Delamination, 157 

 Delphinus, 646 

 Demibranch, 566 

 Demodex, 454 

 Dendrites, 94 

 Dendrocoelum, 271 

 Dendrceca, 616 

 Dendronotus, 382 

 Dental formula, 626 

 Dentalium, 369 

 Dentary bone, 525, 582 



Denticetffi, 645, 646 

 Dentine, 515 

 Derma, 514 

 Dermal teeth, 515 

 Dermanyssus, 454 

 Dermatobia, 493 

 Dermatoptera, 480 

 Dermochelys, 595 

 Dero, 315 

 Derotrema, 587 

 Desmodont hinge, 359 

 Desmodus, 638 

 Desor's larva, 291 

 Deutocerebrum, 462, 468 

 Deutomerite, 214 

 Deutoplasm, 80 

 Devexa, 642 

 Devonian, 180 

 Diaphragm, 546 

 Diapophysis, 518 

 Diaptomus, 421 

 Diastema, 638 

 Diastictis, 494 

 Diapheromera, 480 

 Diastylis, 437 

 Dibranchia, 394 

 Dicotyle, 641 

 Dicyemida, 220 

 Didelphia, 632 

 Didelphys, 633 

 Didus, 614 



Differentiation of tissues, 71 

 Difilugia, 198 



Diffuse nervous system, 122 

 Diffuse placenta, 634 

 Digger wasps, 486 

 Digenea, 274 

 Digestive tract, 103 

 Digitigrade, 647 

 Dimorphodon, 602 

 Dimyaria, 367 

 Dinichthys, 579 

 Dinobryon, 200, 202 

 Diomedia, 615 

 Dinoflagellata, 203 

 Dinoceras, 643 

 DinornithidiB, 613 

 Dinosauria, 596 



