INDEX 



707 



Reptilia, 303* : Example, 304 : Dis- 

 tinctive characters and classification, 

 323 : External features, 327 : In- 

 tegument and exoskeleton, 331 : 

 Endoskeleton, 332 : Digestive or- 

 gans, 345 : Organs of respiration, 

 346 : Organs of circulation, 347 : 

 Brain, 349 : Sensory organs, 349 : 

 Reproductive organs, 351 : Develop- 

 ment, 351 : Ethology, 354 : Geo- 

 graphical distribution, 35S : Geo- 

 logical distribution, 359 : Extinct 

 groups of reptiles, 360 : Relation- 

 ships, 590 



Respiration, organs of, Amphioxus, 

 47 : Craniata, 86, 87 : Petromyzon, 

 125, 126 : Hemiscy Ilium, 149 : Elas- 

 mobranchii, 173 : Holocephali, 187 : 

 Trout, 204 : Teleostomi, 227 : Gera- 

 todus, 244, 245 : Frog, 269 : Am- 

 phibia, 295 : Lizard, 318 : Reptilia, 

 346, 347 : Pigeon, 385, 386, 387, 

 388 : Aves, 421 : Rabbit, 453 : 

 Mammalia, 558 



Respiratory heart, 93* 



Respiratory tube of Petromyzon, 124, 

 125, 126* 



Respiratory valves, of Trout, 193 



Restiform bodies, 187, 188 



Rete mirabile, 173* 



Reticulum, 553*, 554 



Retina, Craniata, 106, 107, 108 



Retropinna, 600 



Reversal of selection, 635* 



Rhabdopleura, 2, 9, 12, 13, 593 



RhamphorhyncJms, 365 



Rhamphotheca, 395* 



Rhea, 398, 408, 417, 429, 431 



Rhese, 398*, 422, 429 



Rhina, 173 



Rhinencephaloii, 97* -See Brain 



Rhinobatus, 176 



Rhinoceros, 468, 476, 489, 490, 521, 

 522, 525, 526, 527, 528, 580 



Rhinoceros indicus, 490 



Rhinochetus, 612 



Rhinoccele, 97*, 173 See Brain 



Rhinoderma darwini, 300 



Rhomboid scales, 221* 



Rhynchocephalia, 325*, 329, 330, 333, 

 359 



Rhytina, 467, 550, 579, 586, 622 



Ribbon-fishes, 218, 225, 615 



Ribs, of Craniata, 69, 72 : Dogfish, 

 142, 143: Teleostomi, 222: Uro- 

 dela, 290 : Lizard, 306 : Reptilia, 

 333, 334, 335, 336 : Pigeon, 373 : 

 Aves, 412 : Rabbit, 435 : Mam- 

 malia, 495 : Edentata, 509 : Cetacea, 

 515 : Sirenia, 518 : Carnivora, 528 : 

 Chiroptera, 534 



Rita buchanani, 214 



River tortoises, 325, 331, 357 



Rock-pigeon, 367 



Rock Wallaby, 481, 508, 560 



Rodentia, 470*, 478, 531, 532, 552, 

 557, 558, 563, 576, 580, 589 



Rods and cones, of retina, 107, 108* 



Rollers, 404 



Rorqual, 517 



Rostrum of skull, Craniata, 74* : Dog- 

 fish, 144: Trout, 198: Pteraspis, 

 254 : Aves, 376, 377 



Rudolphi, 661 



Rumen, 553*, 554 



Ruminants, 468*, 476, 487, 520, 525, 

 526, 527, 548, 553, 554, 555 



Rupicapra, 617 



S 



ACCULUS, 111*, 112 



Saccus vasculosus, 99*, 153*, 154, 173, 

 206, 207 



Sacral ribs, 306 



Sacral vertebra, 259, 260 



Sacro -vertebral angle, 536* 



Sacrum, 435* 



Sagitta, 208*, 209 



Sagittal crest, 521* 



Sagittal suture, 439 



Salamanders, 256, 284, 287, 288, 289, 

 292, 294, 295, 296, 297, 301, 302 



Salamandra, 284, 294, 295, 296 



Salamandra atra, 292, 301 



Salamandra maculosa, 287, 288, 297, 

 301 



Salamandrina, 290 



Saliva, 84* 



Salivary glands, 84* See Digestive 

 system 



SALMO FARIO, 192 : External char- 

 acters, 192, 193, 194 : Skin and 

 exoskeleton, 194, 195 : Endoskele- 

 ton, 195-203 : Muscles, 203 : Ccelome, 

 203 : Digestive organs, 204, 205 : 

 Air-bladder, 204, 205 : Respiratory 

 organs, 204 : Circulatory organs, 

 204, 205, 206 : Nervous system, 

 206, 207 : Sensory organs, 206, 207, 



208, 209 : Urinogenital organs, 208, 



209, 210 : Development, 209, 210 : 

 Systematic position, 216 



Salmo ferox, 192 

 Salmo fontinalis, 192 

 Salmo killinensis, 605 

 Salmo solar, 192 

 Salmon, 190, 201, 214, 235 

 Salmonidce, 216, 235, 236 



