INDEX 



721 



Radio-ulna, 273, 267 



Radius, 82*, 83 See Limb-skeleton 



Rails, 416, 426 



Rajida, 170* 



Rallus, 416, 426 



RANA TEMPORARIA and R. ESCULENTA, 

 264 : External characters, 265 : Endo- 

 skeleton, 266, 267-274 : Muscular sys- 

 tem, 274, 275 ; Digestive organs, 276, 

 277 : Respiratory organs, 277 : Circula- 

 tory organs, 278-284 : Nervous system, 

 284, 285: Sensory organs, 284, 285: 

 Urinogenital organs, 286, 287, 288 : 

 Development, 288, 289, 290, 291 : 

 Systematic position, 294 



Rana pipiens, 265^ 



Range, 625* 



Ranidte, 294*' 



Ranidens, 299 



Rapacious Birds, 442 



Ratitee, 410*, 423, 425, 427, 429, 430, 433, 

 442, 445 



Rats, 484 



Rattlesnakes, 335, 349 367,| 



Rauber's layer, 589* 



Raven, 417 



Ray, John, 668, 6711 



Rays, 170-187 



Recapitulation Theory, 646 



Recent period, 642 



Receptaculum chyli, 574 



Recessive characters, 665* 



Recognition-marks, 424 



Rectal gland, Dogfish, 154? 



Rectrices See Pterylosis, 385| 



Rectus abdominis, 274, 275 



Red-bodies, 237* 



Red Deer, 536, 541, 542, 54* 



Red-glands, 237* I 



Redi, 671 



Reef-fishes, 224, 244? 



Regalecus, 233, 635 5 



Regeneration, 659* 



Reindeer, 501, 502, 



Relationships of Adelochorda, 13, 43 : 

 Urochorda, 42 : Amphioxus, 65 : Cyclo- 

 stomata, 142 : Amphibia, 312 : Aves, 

 443 : Chordata, 610 : Phyla of Animals, 

 616 



Remiges See Pterylosis, 385* 



Renal artery, 92 : vein, 93 



Renal organs See Excretion, organs of, 

 and Urinogential organs 



Renal portal system, 94* See Vascular 

 system 



Replacing bones, 78* 



Reprod active organs of Balanoglossus, 

 7 : Cephalodiscus, 11, 12 : Ascidia, 

 21 : Urochorda, 31 : Amphioxus, 55 

 See Urinogenital organs 



Reptilia, 313 : Example, 314 : Distinc- 

 tive characters and classification, 334 : 



External features, 338 : Integument 

 and exoskeleton, 342 : Endoskeleton, 

 343 : Digestive organs, 355 : Organs of 

 respiration, 357 : Organs of circulation, 

 358 : Brain, 360 : Sensory organs, 360 : 

 Reproductive organs, 362 : Develop- 

 ment, 362 : Ethology, 365: Geographical 

 distribution, 369 : Geological distribu* 

 tion, 370 : Extinct groups of reptiles, 

 371 : Relationships, 610 



Respiration, organs of, Amphioxus, 48 : 

 Craniata, 88 : Petromyzon, 129, 130 : 

 Chiloscy Ilium, 154 ; Elasmobranchii, 

 178 : Holocephali, 192 : Trout, 212 : 

 Teleostomi, 234 : Ceratodus, 250, 251 : 

 Frog, 277: Amphibia, 304: Lizard, 

 328 : Reptilia, 357, 358 : Pigeon, 397. 

 398, 399, 400 : Aves, 434 : Rabbit, 

 466 : Mammalia, 576 



Respiratory, heart, 96* 



Respiratory tube of Petromyzon, 128, 

 129, 130 



Respiratory valves, of Trout, 199 



Restiform bodies, 193 



Rete mirabile, 178* 



Reticulum, 571* 



Retina, Craniata, 110*, 111 



Retropinna, 620 



Reversal of selection, 655* 



Rhabdopleura, 2, 9, 12, 13, 613 



Rhamphorhynchus, 377 



Rhamphothieca, 408* 



Rhea, 411, 421, 430, 442, 445 



Rhe, 411, 435, 443 



Rhina, 178 



Rhinencephalon, 100* See Brain 



Rhinobatux, 181 



Rhinoceros 482, 490, 502, 504, 537, 538, 

 541, 543, 544, 599 



Rhinoceros indicus, 504 



Rhinochetns, 633 



Rhinocoele, 100* See Brain 



Rhinoderma darwini, 309 



Rhomboid scales, 228 



Rhynchocephalia, 335*, 339, 344, 371 



Rhytina, 481, 568, 598, 606, 642 



Ribbon-fishes, 224, 232 



Ribs, of Craniata, 71, 74 : Dogfish, 147 : 

 Teleostomi, 229 : Urodela, 299 : Lizard, 

 316 : Reptilia, 344, 345, 346, 347 : 

 Pigeon, 385 : Aves, 424 : Rabbit, 449 : 

 Mammalia, 510 : Edentata, 526 : 

 Cetacea, 531 : Sirenia, 534 : Garni vora, 

 544 : Chiroptera, 550 : Rabbit, 449 



Rita buchanani, 220 



River tortoises, 336, 341, 368 



Rock -pigeon, 378 



Rock Wallaby, 495, 523, 578 



Rodentia, 484*, 492, 547, 548, 549, 569, 

 574, 575, 581, 595, 599, 609 



Rods and cones, of retina, 111* 



Rollers, 417 



