INDEX 



711 



Demodex, 381. 



Demos pongia, 105. 



Dendroccelum, 151, 156. 



Dendroctonus, 364. 



Dendronolus, 261. 



Denisonia, 539. 



Dentalimn, 261. 



Dentary, 494. 



Denliceti, 645, 674. 



Dentine, 635, 678. 



Dentition, acrodont, 553; heterodont, 



67g; homodont, 679. 

 Dermal branchiae, 192; denticles, 424; 



papillae, 677; plates, 677. 

 Dermanyssus, 380. 

 Dermatemydida, 535, 540; Dermalemys, 



535- 

 Dermestida, 361. 

 Dermis, 402, 403, 479. 

 Dermochelyidce, 535, 544- 

 Dermophis, 510. 

 Dermoptera, 642. 

 •Dero, 236. 



Desmognalhus, 511, 517- 

 Development, /Isferias, 197; Amelia, 



131, 132; echinoderms, 210-211; 



crayfish, 288; frog, 506-5*0; Gonione- 



mus, 124; liver fluke, 159; lamprey, 



419; mammals, 680-682 ; perch, 441 ; 



Planaria, 154. 

 Devonian period, 697. 

 Diapheromera, 344. 



Diaphragm, honeybee, 320; rabbit, 637. 

 Diaptomus, 294. 

 Diastylis, 294, 296. 

 Dibranckia, 268. 

 Dicotyles, 644. 



Dicyema, 176; Dicyemida, 176, 177. 

 Didelphia, 632, 642 ; Didelphiidce, 647 ; 



Didelphis, 642, 647. 

 Didinium, 54. 

 Diemyclylus, 511, 515. 

 Difflugia, 39. 

 Digenea, 161. 

 Digestion, ^4a«e6a, 30; coelenterates, 143 ; 



Granlia, 96 ; Hydra, 113; Paramecium, 



55- 

 Digestive system, 77; Ampkioxus, 396, 

 397 ; crayfish, 282 ; Ctenophora, 146, 

 147; dogfish, 425; earthworm, 220; 

 frog, 480; honeybee, 318; lamprey, 

 416,417; leech, 238; liver fluke, 157, 



158; perch, 437; Peripalus, 307; 

 pigeon, 583 ; Planaria, 152 ; snail, 

 253; spider, 373, 374! squid, 265, 

 266; starfish, 194; turtle, 530; ver- 

 tebrates, 405. 



Digit, 576, 581, 582. 



Digitigrade, 653. 



Dik-dik, 669. 



Dimorphism, 126, 621. 



Dinoflagellata, 47, 48. 



Dinornis, 589; Dinornithiformes, 589, 



597- 

 Dinosaaria, 573. 

 Diodon, 466; Diodonlidx, 466. 

 Dioecious, 80. 

 Diomedea, 590, 600. 

 Diphycercal, 447. 

 Diploblastic, 89. 

 Diplocardia, 215, 236. 

 Diplodiscus, 162. 

 Diplopoda, 309-310. 



Dipnoi, 432, 445, 471-472, 474, 694, 695. 

 Dipper, 591. 

 Diprotodontia, 642. 

 Diptera, 337, 356-359- 

 Dipylidium, 166. 

 Discoglossidoe, 512, 522; Discoglossus, 



512- 



Discomedusa, 130, 133. 



Discorbina, 41. 



Dispsadomorphinw, 539, 564. 



Dissimilation, 31. 



Dissosteira, 345. 



Distalia, 404. 



Distira, 539. 



Distomum, 162. 



Distribution of animals, 6-7. 



Dog, 643, 653, 684. 



Dogfish-shark, 422-428. 



Dolichoglossus, 387. 



Dolichonyx, 615. 



Dolphin, 645, 674. 



Domesticated, birds, 630-631 ; mammals. 



684-685. 

 Donkey, 671. 

 Doris, 258. 



Dorsal, pores, 217 ; vessel, 318, 319. 

 Dotterel, 607. 

 Dove, mourning, 609. 

 Dowitcher, 607. 

 Down, 577, 578. 

 Draco, 537, 553. 



