INDEX 



705 



Diaphorapteryx, 625 



Diaphragm, 458 



Diaphragm, of Craniata, 7"2 



Diastema, 458 



Diazona, 23 



Dkotyhs, 482, 599 



Didelphyidct, 478, 492, 495, 521, 524, 

 563, 584, 598, 602, 629, 633 



Didelphyi donigera, 583 



Didelphya marmipialU, 563, 564 



Didelphys virginiana, 494 



Dididm, 417 



DidmictUim, 633 



Didus, 416, 417, 430, 444 



Dieneephalon, of Craniata, 100* 



Diffuse placenta, 595 



Digestive system, of Balanoylossux, 4, 5 : 

 Ascidia, 19 ; Appendicularia, 29 : Sim- 

 ple Ascidians, 29: Composite Asoirlians. 

 29: Snlpa, 29: DoHolmn, 29: Crani- 

 ata, 84 ; Lamprey, 128 : Myxine, 141 : 

 Dogfish, 152, 153 : Klasmobranchii, 

 177: Holocephali, 192: Trout, 210, 

 211 : Teleostomi, 233 : Ceralodm, 250 : 

 Frog, 276, 277 : Amphibia, 304 : Lizard, 

 323, 324 : Reptilia, 355, 356 : Pigeon, 

 396, 397 : Aves, 433, 434 ; Rabbit, 458 : 

 Mammals, 557 



Digitals, 385* 



Digitigrade, 375 



Digits, 69 — See Limbs 



Dingo, 599, 631 



Dinoceras, 608 



Dinomis rohustus, 431, 642 



DinornitheB, 411, 427, 430, 436 



Dinornithidin, 411, 443 



Dinoaauria, 337*, 374, 375 



DinotheridfK, 606 



Dinotherium r/igantenm, 607 



Diomedm, 4l'5, 430, 436 



Diphycercal, 190*, 230 



Diphyodont, 476* 



Diploblastic, 617 



Dipnenmona, 257* 



Dipnoi, 66, 246: Example, 246: Dis- 

 tinctive characters and classifiration, 

 257 : General remarks, 257 



Dipodidce, 484, 547, 549 



Diprotodonaustralia, 602, 603, 642 



Diprotodont, 562 



Diprotodontia, 478*, 496, 602 



Diplenis, 260 



Dipus, 506 



Discoidal placenta, 595 

 Dispersal, 626 



Distalia, of Craniata, 83* 

 Distinctive characters and classification 

 of Aerania, 64 : Craniata, 66, 123 : 

 Cyclbstomi, 137 : Elasmobranchii, 166 ; 

 Teleostomi, 217 : Dipnoi, 257 : Am- 

 phibia, 292 : Reptilia, 334 : Aves, 408 : 

 JMammals, 476 



Distribution, of Aerania, 64 



Distribution, geological, 638 



Distribution, geological, of Cyclostomi, 

 143 : Elasmobranchii, 187 : Holoce- 

 phali, 196: Teleostomi, 243: Dipnoi, 

 257 : Amphibia, 312 : Reptilia, 370, 

 371 : Aves, 443 i Mammals, 600 



Distribution, geographical, 619 



Distriliution, geographical, of Cephalo- 

 discus, 12: of Rhabdopleura, 12: of 

 Urochorda, 42 : of Cyclostomi, 143 ; 

 Holocephali, 188 : Teleostomi, 242 : 

 Dipnoi, 257 : Amphibia, 312 : Reptilia, 

 369, 370 ; Aves, 442 : Mammalia, 598 



Divers, 414, 444 



Diverticulum, icsophageal, of Balano- 

 glo)isn.i, 4, 6 



Dodo, 416, 417, 426, 430, 444, 642 



Dogfish, 70— See Scyllium and Hemis- 

 cy Ilium 



Dogfishes, 169-188 



Dogs, 484, 505, 514, 545. 546. 5>7, 560, 

 569, 577, 599 



Dohrn, Anton, 684 



Do/ehinia, 23 



Doliolidie, 23 



Doliolnm, 23, 27, 29, 30, 31, 39, 40, 43 



Dolphins, 480, 501, 560, 561 



Dominant characters, 665* 



Dorsal aorta, 92 — See Vascular system 



Dorsal fissure, 98*, 99 



Dorsal lamina, 1 8, 19 



Dorsal shield, Pteraspis, 261 



Dorsal tubercle, of Ascidia, 20, 21 



Dorsal root, 'of spinal nerve, 91* 



Doves, 416 



Down-feathers, 381, 383*, 423 



Draco, 366, 344, 369, 638 



Draco volans, 366 



Drepanaspidn; 261, 262* 



Drepanaspis gemmidenenaio, 262 



Drepanidce, 633 



Dromseognathous, 428* 



Dromctm, 410, 421, 423, 425, 430, 432, 

 442 



Dromatherimn, 600 



Dryopithecus, 610 



Dryomis, 41.3 



Duck-Bill, 478 — See Omithorhynchns 



Ducks, 416, 421, 428, 429 



Ductless glands of Crapiata, 88, 120 



JXictus Botalli, .304, 306* 



Ductus Cuvieri, 156* 157 



Ductus endolymphaticus, 332 



Dugong, 481. 511, 516, 534, o3:,, 5.36, 

 568, 598, 606 



Dujardin, 679, 682 



Dumb-bell-shaped bone, 520 



Duodenum, 152* • of Pigeon, 397 : Rab- 

 bit, 460 



Duplicidentata, 488 



Dura mater, 103" 



