INDEX. 



G41 



Renilla — Pore, 117. 



Reptilia — Vertical fringe, 415; Cerium, 

 417; Scales, 417; Dermal bones, 425 ; 

 Vertebral column, 429 ; Atlas, 437 ; 

 Axis, 437; Ribs, 440; Sternum, 443; 

 Episternum, 444 ; Squamosal, 458 ; 

 Postfrontals, 459; Nasal cavities, 

 460; Hard palate, 460; Branchial 

 skeleton, 469 ; Hyoid, 471 ; Shoulder- 

 girdle, 476; Ilium, 481; Fore-limb, 

 481 ; Toes, 490 ; Dermal muscles, 

 493 ; Intercostal mnscles, 495 ; Masti- 

 catory muscles, 497; Brachial plexus, 

 511; Crural plexus, 515; Sacral 

 plexus, 515; Goblet-shaped organs, 

 524 ; Gustatory organ, 525 ; Lens, 

 531; Optic muscles, 531; Eyelids, 

 532 ; Lachrymal glands, 532 ; La- 

 chrymal ducts, 533 ; Lagena, 536 ; 

 Tympanic cavity, 537 ; External ear, 

 538; Buccal cavity, 519; Teeth, 

 550 ; Tongue, 552 ; Labial glands, 

 553; Thyroid gland, 551; Enteron, 

 555; Stomach, 597; Hind-gut, 562; 

 Cloaca, 563; Epiglottis, 571; Trachea, 

 571 ; Lungs, 573 ; Blood-corpuscles, 

 576; Heart, 587; Jugular veins, 590; 

 Venaa vertebrales, 591 ; Cardinal 

 veins, 591 ; Superior vena? cavse, 591 ; 

 Ductus Cuvieri, 591 ; Renal veins, 

 594; Lymphatic hearts, 599; Peyerian 

 glands, 600; Thymus, 600; Renal 

 organs, 609; Egg, 609; Yolk, 609; 

 Cloaca, 620. 



Rhizocephala— Mantle, 236; Eyes, 264; 

 Enteric canal, 269. 



Rhizocrinus — Figure, 197. 



Rhizojaoda — Sensory organs, 42 ; Aliment- 

 ary canal, 47; Protoplasm, 76; Pseu. 

 dopodia, 78 ; Spores, 87. 



Rhombifera — Bony plates, 424. 



Rhynconella — Excretory organs, 313. 



Rodentia — Nipples, 422 ; Episternum, 

 414 ; Interparietals, 461 ; Hyoid, 

 472 ; Centrale, 482 ; Pelvis, 486 ; 

 Fibula, 490; Cerebral hemispheres, 

 509; Buccal pouches, 549; Teeth, 

 552 ; Stomach, 558 ; Caecum, 562 ; 

 Liver, 564 ; Vena? cava?, 592 ; Renal 

 organs, 605; Uterus, 616; Testes, 

 618; Vesicuke seminales, 618; Pros- 

 tatic glands, 619 ; Copulatory organs, 

 622 ; Tyson's glands, 624. 



Rot alia — Figure, 78. 



Rotatoria — Segmentation, 129; Cilia, 138; 

 Wheel organ, 138 ; Dermal carapace, 

 139; Tubes, 139; Nervous system, 

 146 ; Tactile seta?, 152 ; Visual 

 organs, 154; Alimentary canal, 160; 

 Glandular organs of enteron, 174 ; 

 Coelom, 166; Excretory organs, 174 ; 

 Generative organs, 190. 



Ruminantia— Interparietal, 464; Cuboid, 

 490 ; Tapetum, 530 ; Accessory 



cavities of nose, 548; Sinus maxil- 

 lary, 548 ; Stenoniau ducts, 5 18 ; Sto- 

 mach, 559. 



Saccobranchus — Branchial tubes, 5 15. 



Soenuris — Vascular system, 168. 



Sagitta — Nervous system, 149; Eyes, 151. 



Salamaudrina— Vertebra-, 432, 433 ; Hind- 

 limb, 488; Trunk muscles, 494; M. 

 pyramidales, 496; Lungs, 573; Heart, 

 581; Lymph spaces, 598; Vagus, 517; 

 Eyelids, 532 ; External gills, 515. 



Salmo — Notochord, 427 ; Cartilaginous 

 cranium, 450 ; Mandibular apparatus, 

 454; Enteron, 556; Kidneys, 604; 

 Ovaries, 610. 



Salpa — Stolo prolifer, 391; Asexual form, 

 392 ; Sexual form, 392 ; Muscular sys- 

 tem, 395; Nervous system, 395; Sen- 

 sory organs, 397; Ciliated groove, 

 397 ; Visual organs, 397 ; Ventral 

 groove, 402 ; Enteron, 404 ; Nucleus, 

 404 ; Heart, 405 ; Sexual organs, 407. 



Saltatoria— Thorax, 237- 



Saphenia — Tentacles, 102. 



Sapphirina — Female organs, 294. 



Sarcoptes — Trachea 1 , 291. 



Sarcorhamphus — Veins, 591. 



Sarsiada? — Gastrovascular system, 115. 



Saurii — Centra of vertebra;, 433 ; Pro- 

 cesses of do., 433; Caudal do., 434, 

 Ribs, 438 ; Sternum, 442 ; Columella, 

 458, 538; Vomer, 459; Lachrymal; 

 459 ; Pterygoids, 461 ; Palatines, 461 i 

 Maxilla, 462; Shoulder-girdle, 476; 

 Carpus, 481 ; Ilium, 484 ; Pubis, 485 ; 

 Tarsus, 489; Intercostal muscles, 496; 

 Masticatory do., 497 ; Brain, 507 ; 

 Sclerotic, 530; Eyelids, 532; Ductus 

 endolymphaticus, 534 ; External ear, 

 538; Nasal glands, 518; Organ of 

 Jacobson, 548; Teeth, 550; Tongue, 

 552 : Labial glands, 553 ; Hind-gut, 

 562; Liver, 561; Mesentery, 565; 

 Lungs, 573 ; Heart, 581 ; Arterial 

 arches, 582 ; Carotids, 507 ; Arteriae 

 intercostales, 589; Epigastric veins, 

 595; Oviducts, 618; Testes, 614; 

 Vasa deferentia, 614 ; Mulleriau 

 duct, 615; Allantois, 620; Copula- 

 tory organs, 621. 



Sauropsida — Vertebral column, 433 ; 

 Skull, 457 ; Ischiac arteries, 589. 



Scaphopoda — Appendages, 326 ; Nervous 

 system, 347 ; Visual organs, 353 ; 

 Auditory vesicles, 357 ; Alimentary 

 canal, 358. 



Schizopoda — Branchiae 241 ; Heart, 281 ; 

 Female organs, 294 ; Male organs, 

 295 ; Seminal elements, 305. 



Schizostomea; — Alimentary canal, 157. 



Scincoidea — Dermal bones, 425. 



Sciurus — Uterus, 616. 



Scoleina — Dermal glands, 141 ; Nerve 



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