626 



INDEX. 



Brain, 506 ; Spinal norves, 514 ; 

 Bracliial plexus, 514 ; Olfactory 

 nerve, 515 ; Glossopharyngeal, 518 ; 

 Vagus, 521 ; Goblet-shaped organs, 

 524 ; Lateral line, 524 ; Gustatory 

 organs, 525 ; Olfactory organs, 525 ; 

 Nasal canal, 526; Optic bulb, 529; 

 Sclerotic, 529 ; Optic muscles, 531 ; 

 Eyelids, 532 ; Lachrymal ducts, 532 ; 

 Labyrinth, 535 ; Eustachian tube, 

 537; External ear, 538; External 

 gills, 545; Pharynx, 546; Nasal 

 glands, 548 ; Teeth, 550 ; Tongue, 

 552 ; Thyroid gland, 554 ; Stomach, 

 557; Mid-gut, 561; Hind-gut, 562; 

 Cloaca, 562 ; Liver, 564 ; Mesentery, 

 565 ; Lungs, 569, 572 ; Blood-cor- 

 puscles, 576 ; Heart, 580 ; Branchial 

 arteries, 580; Pulmonary arteries, 

 581 ; Eenal arteries, 589 ; Venous 

 sinuses, 591 ; Inferior venae cavse, 

 592; Lymph sinuses, 598; Lympha- 

 tic hearts, 599 ; Glands, 600 ; Archi. 

 nephric duct, 602; Kidney, 603; 

 Pronephridion, 603 ; Mullerian duct, 

 604, 612; Ureter, 604; Ova, 609; 

 Sperm, 609 ; Generative organs, 612 ; 

 Oviduct, 612 ; Allantois, 621 ; Urinary 

 bladder, 621 ; Copulatory organs, 

 621. 



Amphigl ena — Auditory organa, 156. 



Amphinoma — Appendages, 136 ; Nerve 

 trunks, 149. 



Amphioxas — Nerve fibres, 32 ; Branchial 

 skeleton, 142 ; Trunk, 413 ; Epi- 

 dermis, 418 ; Notochord, 427 ; Ver- 

 tebral column, 428; Cephalic skeleton, 

 442 ; Cranium, 447 ; Brancliial ske- 

 leton, 468 ; Muscular system, 491 ; 

 Medullary tube, 502 ; Peripheral 

 nervous system, 513 ; E j e, 527 ; 

 Figure of, 539; Respiratory cavity, 

 540; Branchial cavity, 540; Branchiae, 

 541 ; Hypobranchial groove, 553 ; 

 Enteron, 555 ; Fore-gut, 556 ; Liver, 

 556; Hearts, 575. 



Amphipnous — Branchial lamella, 545. 



Amphipoda — Branchiae, 241 ; Ventral 

 chord, 255 ; Heart, 280. 



Amphistoma — Visual organ, 154 ; Shell 

 gland, 183. 



Amphiuma — Vertebrae, 433. 



Anamnia — Epidermis, 418 ; Supra-renal 

 gland, 601. 



Anatidae — Stomach, 558 ; Syrinx, 572. 



Animals — Cells in, 15 ; Classification of, 

 66 ; Phyla of, 69. 



and Plants — Boundary between, 



68, 75. 



Anisobranchiata — Branchiae, 337. 



AnneUdes — Excretory organ, 46; Vascular 

 system, 50 ; Parapodia, 135 ; Cilia, 

 137 ; Rod-like bodies, 140 ; Tubular 

 glands 141 ; Muscular system, 143 



Nervous system, 149 ; Visceral nerves , 

 151 : Tactile setae, 151 ; Visual organs, 

 155; Auditory organs, 156; Hind- 

 gut, 164 ; Coelom, 166; Blood-vessels, 

 171. 



Annulata — Musculature, 42 ; Nervous 

 system, 42 ; Excretory organs, 42 ; 

 Homology in, 64 ; Metamerism in, 

 130; Integument, 136; Setae, 140; 

 OEsophageal ring, 148; Eyes, 154; 

 Alimentary canal, 162 ; Coelom, 165 ; 

 Vascular system, 167 ; Excretory 

 organs, 176; Spermatophores of, 191. 



Anodonta — Branchias, 336 ; Muscles, 342 ; 

 Nervous system, 346; Heart, 370; 

 Organs of Bojanus, 370 ; Renal ducts, 

 376 ; Genital canal, 380. 



Anoniia — Foot, 321 ; Branchiae, 336 ; 

 Visceral ganglia, 346. 



Anoplotherium — Manus, 483. 



Anseres — Caeca, 562. 



Ant — Salivary glands, 23. 



Antedon — Pinnulaa of, 195. 



Antelope — Stomach, 558. 



Anthozoa — Form of, 99 ; Tentacles, 102 ; 

 Skeleton, 106 ; Muscular system, 

 108 ; Gastric system, 110; Generative 

 organs, 122. 



Antipatharia — Generative organs, 123. 



Antipathidae — Skeleton, 106. 



Anura — Ribs, 439 ; Maxilla, 457 ; Bran- 

 chial arches, 471 ; Shoulder-girdle, 

 476 ; Pelvic-girdle, 484 ; Hind-limb, 

 488; Sixth toe, 488; Dermal muscles, 

 493 ; Mesencephalon, 505 ; Facial 

 nerve, 517 ; Ductus endolymphaticus, 

 534; Columella, 538; External gills, 

 545 ; Horny teeth, 549 ; Kidneys, 

 604 ; Testes, 612 ; Fatty bodies, 613. 



Apes — Dermal muscles, 493 ; Turbinate 

 bones, 547; Buccal pouches, 549; 

 Subliugua, 553 ; Clitoris, 623. 



Aphides — Wax-secreting organs, 250; 

 Salivary glands, 274 ; Pseudova, 302. 



Aphroditaceae— Elytra, 135 ; Maxillary 

 apparatus, 162 ; Mid-gut, 162. 



Aphrodite — Origin of nerves, 151 ; Ali- 

 mentary canal, 162 ; Liver, 165. 



Aphroditidffi — Setae, 140. 



Aplysia — Ganglia, 348 ; Vessels, 372 ; 

 Copulatory organ, 384. 



Appendicularia — Tail, 394 ; Axial organ, 

 394; Branchial sac, 399; Sexual 

 organs, 407. 



Aptera— Gnathites, 245 ; Ventral chord, 

 258 ; Malpighian vessels, 276 ; 

 Tracheae, 288. 



Apteryx — Diaphragm, 499; Accessorius 

 Willisii, 522. 



Apus— Shell, 235 ; Ventral chord, 254 ; 

 Cseca, 268 ; Salivary glands, 274 ; 

 Generative organs, 290. 



Arachnida — Form of Body, 237 ; Appen- 

 dages, 244; Spines, 249; Ventral 



