INDEX 



759 



Canals, Haversian, 25, 26 : of Medusa, 

 125, 126 



Canal system of Sponges, 108, 109 



tfancer, .524 3 540 



Cannostomae, 164*, 169, 170, 171 



Capillaries, 33* 



Capillitium, of Mycetozoa, 62 



Caprdla, 524, 545, 546 



Carabus auratm, 592 



Carapace, of Apns, 485 : of Astacus, 498 : 

 of Scorpion, 605 



Carboniferous, 7 



Cardiac sac, of Polychieta, 437 



Cardium, 647, 652 



Carina, of Cirripedia, 533 



Carinaria mediterranea, 687 



Cartilage, 24*, 25 : Hyaline, 24, 25 : 

 Fibrous, 24, 25 : Yellow elastic, 24 : 

 Calcified, 25 



CABYOPHYLLJEUS, 247, 256 



Caudal spine, 617 



Caudal styles, of Apus, 485 



Cell, animal, 14, 15* 



Cell, 14, 15*, 17 : Forms, 21 : Ciliated, 

 21, 43 : Flagellate, 21, 43 : Amoeboid, 

 43 : Encysted, 43 



Cell-colony, 50 



Cell-division, 16,17 



Cell-wall, 15 



Cetlepora, 320 



Cellulose, 14 



Centipedes, 567, 568 



Central capsule of Radiolaria, 58 



Central nervous system of Medusae, 138 



Centro-dorsal ossicle, of Antedon, 374 



Centrolecithal, 207, 496 



Centrosome, 15* 



Cephalic apodeme, of Apus, 491 : of 

 Astacus, 499 



Cephalopoda, 631, 708. Examples, 708, 

 725 : Distinctive characters and classi- 

 fication, 736 ; Systematic position of 

 the examples, 737 : General organisa- 

 tion, 737 ; External features, 737, 738, 

 739, 740 : Shell, 740, 741, 742 : Inter- 

 nal skeleton, 743: Gills, 743: Os- 

 phradia, 743 : Coelome, 743 : Ali- 

 mentary organs, 743 ; Heart and vas- 

 cular system, 743 : Nervous system 

 and sense-organs, 744 : Nephridia, 744 : 

 Development, 744, 745, 746, 747, 748, 

 749 : Distribution, &c., 749 



Cephalo thorax, of Astacus, 498 



Cerata, 693 



Ceratites nodosus, 741 



Ceratium, 74 



Ceratosa, 116 ' 



Cercaria, 230*, 231, 259 



Cerci, 574 



Gericmthus, 187, 189 



Cervical fold, of Apns, 485 



Cervical groove, of Antaeus, 498 



Cervical sclerites, 588 



Cestida, 208*, 210 



Cestoda, 238% 245, 246, 247, 253, 254 

 256 



Cestode, development, 259, 260 



Cestus i'< n< /v'.s, 210 



Chcetoderma, 663, 664, 665, 666, 668 



ChcetogaMa, 446 



Chsetognatha, 275*, 293 : External cha 

 racters, 293 ; Body-wall, 293 : Enteric 

 canal, 293, 294 : Ccelome, 294 : Ner- 

 vous system, 294 : Sensory organs, 

 295 : Reproduction, 295 : Develop- 

 ment, 295 



Chcetonotus, 311 



Chgetopoda, 403 : Examples, 404, 417 : 

 Distinctive characters and classifica- 

 tion, 426: Systematic position of ex-- 

 am pies, 428 : General organisation, 

 429 : General form, 429, 430 : Para- 

 podia and setse, 430, 431 : Branchite, 

 433, 434 : Co?lome, 435 : Enteric canal, 

 435, 436 : Blood-vessels, 436 : Nervous 

 system, 437 : Organs of special sense, 

 438 ; Organs of excretion, 440 : Repro- 

 ductive organs, 441 : Development, 

 442 : Asexual reproduction, 446 : Mode 

 of life, &c., 447 : Appendix, 448 



Chcetosomidce, 296, 297 



Chalk, 55 



Charybdwa marsupialis, 166, 168 



Cheilostomata, 320 



Chela?, 500* 



Chelicer*, 606, 613, 615, 616, 617 



Chelifer bramisii, 613 



Chelipeds, 500* 



Chilaria, 617 



Chilopoda, 567, 568, 569 



Chironomuft, 595 



Chitin, 29 



Chiton, 631, 663, 664, 665, 666, 667, 689, 

 670 



CMamydomyxa, 48, 49, 50 



CUor&midcK, 436 



Chloragen cells, 421 



Chlorophyll, 14, 64 



Choanoflagellata, 65* : General structure, 

 72 : Collar, 72 : Colonies, 73 : Repro- 

 duction, 73 



Chondracanthu8 t 522, 530, 531 



Chorion, of Cephalopoda, 744 : of Insects, 

 599 



Choristida, 116 



Chromatin, 15 



Chromatophores, of Sepia. 711 : of 

 Cephalopoda, 740 



Chrysalis, 602 



Chylific ventricle, 577 



Cicada, 585, 597 



Cidaris, 393 



Cilia, 21* 



Ciliary flames, 253 : process, 720 



Ciliata, 82* : Form of body, 83, 85, 86, 

 87, 88, 89 : Stalk, 83, 85, 87 : Arrange- 



