702 



INDEX 



Dendrite(s), 147, 469, 47°, 499. 5i6, 551, 



552 

 Dental arcade, 192 



canaliculi, 193, 197 



formula, 192 



papilla, 196 



ridge (lamina), 195, 199 



sac, 195, 198 

 Dentalium, 12 

 Dentary, 26, 231, 246 

 Dentate nucleus, 513, 549 

 Dentine (ivory), 170, 184, 193, 197, 199 

 Dentition, 26, 27, 28 



acrodont, 186 



diphyodont, 187 



heterodont, 186 



homodont, 186 



monophyodont, 187 



pleurodont, 186 



polyphyodont, 187, 188 



thecodont, 186 

 Depressor, 332 

 Dermal armor, 244 



bones, xiv, 105, 105, 219, 236 



sac, 51 



scales, 219 



skeleton, 244 

 Dermatome, 95, 102, 168, 209 

 Dermis(corium), 95 

 Descending fibers, 515, 517 

 Descensus cordis, 373 



of gonads, 443 

 Deuterencephalon, 478, 640 

 Deuterostomia, 2, 4, 10, 17, 300, 634 

 Deutoplasm, 38 



Development, 12, 44, 46, 58, 59, 77 

 Developmental, 52 



mechanism, 80 



methods, 80 



potentialities, 44 



processes, 70 

 Devilfish, 13, 14 

 Devonian, 25, 34, 244 

 DeVries, xi, xiv, 219 

 Diabetes, 447 

 Diaphragm, 26, 35, 107, 108, 272, 280, 



280, 323, 342 

 Diapophysis, 204 

 Diastema, 192 

 Dibranchiates, 14 

 Didelphia, 27, 27 



Diencephalon, 479, 505, 507, 510, 542, 544 



547 

 Differentiation, 4, 35, 36, 55, 83, 94 



antero-posterior, 7, 83 



dorso-ventral, 7 



theory, 187 

 Difflugia, 3 

 Diffuse placenta, 120 

 Diffusion, 51, 328 

 Digastric m., 275 

 Digestion, 6, 65, 89, 100, 292 

 Digestive cavity, 65, 82, 87 



epithelium, 89 



organ, 90, 326 



outlet, 27 



system, 292-327, 644 



tube, 52, S3, 66, 71, 84, 89, 91, 99 



wastes, II, 90 

 Digit, 29, 250 

 Digital artery, 377, 379, 392 



vein, 397 

 Dimetrodon, 223, 231 

 Dinosauria, 26, 34 

 Dinotherium, 191 

 Dioecious, 36 

 Diphyodont, 187 

 Diploe, 395 

 Diploid, 43 

 Diplospondyly, 204 

 Dipnoi, 25, 31, 243, 329, 354 

 Discoidal cleavage, 62 



placenta, 120 

 Diseases, 4 



Diverticulum(a), 7, 325, 333, 605, 618 

 Divisive (churning) movements, 3^4 . 

 Doglish, 35, 38, 58 

 Dogs, 28 

 Dohrn, 297, 318, 616, 630, 632, 633, 635, 



662 

 Dohrn-Semper theory, 636 

 Dolphin, 28 

 Dorsal, 8 



aorta, 10, 26, 330, 351, 353, 354. 

 376, 377. 390 



lip, 68 



organ, 652 

 Dorsalis pedis artery, 395 

 Dorsum, 303 

 Dragonfly, 16 

 Dromatherium, 187, 188 

 Dryopithecus, 33 



