INDEX 



711 



Demodex, 381. 



Demospongia, 105. 



Dfiiilroiii-liiiii, 151, 156. 



Dendroctunns, 364. 



Dendronotus, 261. 



Denisonia, 539. 



Dentalium, 261. 



Dentary, 494. 



Denticeti, 645, 674. 



Dentine, 635, 678. 



Dentition, acrodont, 553 ; heterodont, 



679; homodont, 679. 

 Dermal branehia.-, 192 ; denticles, 424 ; 



papillae, 677 ; plates, 677. 

 Dermanyssus, 380. 

 Dermalemydidce, 535, 540; Dermatemys, 



535- 



Dermestidee, 361. 

 Dermis, 402, 403, 479. 

 Dermochclyidce, 535, 544. 

 Dermophis, 510. 

 Dermoptera, 642. 

 Dero, 236. 



Desmogrialhus, 511, 517. 

 Development, Asterias, 197; Aurelia, 



131, 132; echinoderms, 210-211; 



crayfish, 288; frog, 506-510; Gonione- 



miis, 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. 

 Diaslylis, 294, 296. 

 Dibranckia, 268. 

 Dicotyles, 644. 



Dicyentii, 176; Dicyemidd, 176, 177. 

 Didelphia, 632, 642; Didelphiida, 647; 



Didelphis, 642, 647. 

 Didinium, 54. 

 Diemyctylus, 511, 515. 

 Dijflugia, 39. 

 Digenea, 161. 

 Digestion, Ameba, 30; coelenterates, 143 ; 



Grantia, 96; Hydra, 113 ; Paramecium, 



55- 



Digestive system, 77; Amphioxus, 396, 

 397 ; crayfish, 282 ; Ctenopfiora, 146, 

 147; dogfish, 425; earthworm, 220; 

 frog, 480 ; honeybee, 318 ; lamprey, 

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



158; perch, 437; Peripatus, 307; 

 pigeon, 583; Planiiria, 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 ; Dinar nithif or mes, 589, 



597- 



Dinosauria, 573. 

 Diodon, 466; Diodontidce, 466. 

 Dioecious, 80. 

 Diomedca, 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- 

 Dipylidhim, 166. 

 Discoglossidce, 512, 522; Discoglossus, 



512. 



DiscomeduscR, 130, 133. 

 Discorbina, 41. 

 Dispsadomorphina, 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. 

 , 537, 553. 



