INDEX. 



631 



hearts, 576, 598 ; Blood-vascular 

 system, 576 ; Excretory organs, 601 ; 

 Archinepkric duct, 602. 



Crania — Casca, 311. 



Craspedosoma — Generative organs, 299. 



Crayfish. — Green-gland, 286 ; Male organs, 

 295. 



Crepidula — Brancbiaj, 338. 



Cricetus — Generative organs, 618. 



Crinoida — Pinnulse, 196 ; Arms, 199 ; 

 , Tentacles, 200; Dermal skeleton, 203 ; 

 Muscular system, 207; Alimentary 

 canal, 213; Coelom, 217; Blood- 

 vessels, 218; Stone-canal, 222; Ex- 

 cretory organs, 224. 



Orccodilini — Centra of vertebree, 433 ; 

 Processes of vertebrse, 433 ; Caudal 

 vertebrae, 434 ; Axis, 437 ; Eibs, 

 439 ; Sternum, 442 ; Episternum, 

 444 ; Covering-bones of skull, 459 ; 

 Lachrymal, 459 ; Palato-quadrate, 

 459 ; Pterygoids, 461 ; Palatines, 

 461; Maxilla, 462; Hyoid, 472; 

 Shoulder-girdle, 476; Carpus, 481; 

 Phalanges, 481 ; lUum, 484 ; Pelvis, 

 485; Tarsus, 488; Toes, 490; Cal- 

 caneum, 490 ; Abdominal ribs, 496 ; 

 Diaphragm, 499, 574; Metencephalon, 

 507 ; Optic biilb, 529 ; External ear, 

 538 ; Turbinate bone, 547 ; Nasal 

 glands, 548 ; Teeth, 550 ; Stomach, 

 557; Mid-gut, 561; Liver, 564; 

 Mesentery, 565 ; Larynx, 570 ; Lungs, 

 573 ; Abdominal pore, 574 ; Coelom, 

 574; Heart, 582; Arterial arches, 

 582 ; Carotids, 587 ; Arteriee inter, 

 costales, 589 ; Eenal veins, 594 ; 

 Lymph sinuses, 599 ; Thymus, 600 ; 

 Testes, 614 ; Copulatory organs, 621. 



Crow — Syrinx, 572. 



Crustacea — Blood-corpuscles, 29 ; Der- 

 mal branchiae, 46; Form of body, 

 234; Nauplius stage, 235; Head, 

 235 ; Cephalothorax, 235 ; Appen- 

 dages, 238 ; Branchige, 240 ; Integu- 

 ment, 248 ; Spines or setae, 249 ; 

 Muscular system, 251; Optic nerves, 

 253 ; Visceral nervous system, 254 ; 

 Tactile rods, 260 ; Olfactory organs, 

 261; Simple eyes, 265; Compound 

 eyes, 265 ; Faceted eye, 267; Ali- 

 mentary canal, 267 ; Masticatory 

 stomach, 268 ; Salivary glands, 273 ; 

 Liver, 275 ; Excretory organs, 276, 

 285 ; Fat bodies, 278 ; Copulatory 

 organs, 299 ; Seminal elements, 

 305. 



Cryptobranchus — Hind-limb, 488; Lungs, 



573. 

 Cryptochiton — Spicules, 330. 

 Cunina. — Cartilage cells, 26 ; Gelatinous 

 disc, 107 ; Marginal vesicles, 110. 



Curculionidse — Ventral chord, 254. 

 Cuvieria — Integument, 207. 



Cyanea — Marginal filaments, 102. 



Cyclas — -Byssus gland, 329 ; Auditory 

 organ, 356. 



Cyclifera — Bony plates, 424. 



Cyclomyaria — Chorda, 394 ; Axial organ, 

 394 ; Auditory organ, 398 ; Enteron, 

 404; Gill, 406. 



Cyclops — NaupUus stage, 234; Appen- 

 dages, 238. 



Cyclostoma — Lung, 339. 



Cyclostomata — Nerve fibres, 33 ; Verte- 

 bral column, 428 ; Vertebree, 438 ; 

 Skull, 447 ; Branchial skeleton, 468 ; 

 Muscles, 492 ; Brain, 504 ; Spinal 

 chord, 510 ; Optic nerves, 515 ; Glos- 

 sopharyngeal, 518 ; Horny teeth, 

 542 ; Hypobranchial groove, 553 ; 

 Fore-gut, 556 ; Mid-gut, 559 ; 

 Branchial artery, 579 ; Caudal vein, 

 579 ; Kidney, 603 ; Cloaca, 619. 



Cydippidse — Axes, 101 ; Grappling lines, 

 103 ; Gastric system, 117. 



Cymbulia — Hermaphrodite glands, 382. 



CymbuHdas— Foot, 324. 



Cynips — Stomach, 272. 



Cynthia — Muscular system, 395. 



Cyprinoids — Caudal region, 431 ;Vertebr8e, 

 439 ; Beards, 525 ; Gustatory organ, 

 525 ; Auditory organ, 534 ; Sacculus, 

 534. 



Cythera — Nervous system, 345; Audi- 

 tory vesicle, 357. 



Dactylethra — Tongue, 552. 



Dactylogyrus — Visual organs, 154. 



Daphnia— Figure of, 268 ; Casca, 268 j 

 Eespiration in, 269. 



Daphnida — Branchiae, 243. 



Dasypus — Pterygoids, 466; Pelvis, 486; 

 Dermal muscles, 493. 



Dasyurus — Tympanic bone, 466. 



Decapoda — Cephalothorax, 235 ; Appen- 

 dages, 239 ; Mandibles, 239 ; Maxillge, 

 239 ; Maxillipeds, 239 ; Locomotor 

 appendages, 239 ; Feet, 240 ; Bran- 

 chiEe, 242; Ventral chord, 254; Au- 

 ditory vesicles, 261; Masticatory 

 stomach, 268; Liver, 274; Heart, 

 281; Male organ, 295; Seminal 

 elements, 305. 



Delphinoidea — Teeth 551 ; Pancreas 

 Aselli, 600. 



Dentalium — Auditory vesicle, 357- 



Derostomum — Auditory organ, 156. 



Derotremata — Branchial arches, 471 ; 

 Eyelids, 529 ; External gills, 545. 



Desmosticha— Ambulacra, 197; Integu- 

 ment, 204. 



Dibranchiata — Funnel, 325 ; Arms, 326 ; 

 Internal skeleton, 342; Nervous 

 system, 350; Eye, 355; Salivary 

 glands, 364; Liver, 366; Ink-bag, 

 369; Auricles, 369; Veins, 374; 



