814 



INDEX 



Cell-colony, 50*, 66 



Cell-division, 17, 18 



Cell-plate, 17, 19* 



Cell- wall, 16* 



CtHepora, 347 



Cellulose, 14, 64, 67, 69, 72, 73, 78 



Cement glands, 270, 326 



Centipedes, 526, 614, 615 



Central capsule (Antedon), 409 



Central capsule of Radiolaria, 60 



Central nervous system of Medusa?, 151 



Centro-dorsal ossicle, of Antedon, 406 



Centrolecithal, 537, 219* 



Centrosome, 17* 



Cephalic apodeme, of Apus, 533 : A*t<i- 

 cus, 542 



Cephalopoda, 680, 759*. Examples, 759, 

 776 : Distinctive characters ,i.ni classi- 

 fication, 789 : Systematic ixxition of 

 the examples, 790 : General organisa- 

 tion, 790 : External features, 790 : 

 Shell, 793 : Internal skeleton, 796 : 

 Gills, 797 : Osphradia, 797 : Coeloine, 

 797 : Alimentary organs, 797 : Heart 

 and vascular system, 797 : Nervous 

 system and sense-organs; 797 : Neph- 

 ridia, 798 : Sexes, 798 : Development, 

 798,799,800, 801, 802: Distribution, 

 &c., 803 : Relationships, 804 



Cephalopodium, 761 



Cephalothorax, of Attaens, 541 



Cerata, 744 



Ceratella, 146 



Ceratella Jusca, 145 



Ceratites nodoxu*, 795 



Ceratium, 79 



Ceratosa, 126 



Cercaria, 244, 245* 



Cerci, 623 



Cerebral organ, 294*, 495 



Cerianthiis, 200, 202 



Cervical fold, of Apus, 527 



Cervical glands, 306 



Cervical groove, of Astwus, 541 



Cervical sclerites, 622 



Cestida, 221*, 223 



Cestoda, 253*, 261, 262, 263, 264, 266, 

 268, 269, 270, 273, 279, 280, 281, 282, 

 285, 286, 287, 288: Example, 245 



Cestus veneris, 223 



Cetonia aurata, 316 



Chseta, 440 See Seta 



Chtetoderma, 713, 715, 716, 717, 718 



Chcetogasta, 486 



Chaetognatha, 297*, 316 : External char- 

 acters, 316: Body-wall, 316: 1'nteric 

 canal, 317 : Ccelome, 317 : Nervous 

 system, 317 : Sensory organs, 318 : 

 Reproduction, 318 : Development, 

 318 



Ch(Monotus, 336 



Ch<*topterus, 469, 481 



Ch&tosoma, 319 



', 319* 



Chatopoda, 439 : Examples, 440, 454 '. 

 Distinctive characters and classifica- 

 tion, 464 : S} r stematic position of ex- 

 amples, 466: General organisation, 

 467 : General form, 467, 468 : Paru- 

 podia and seta?, 468, 469, 470 : Bran- 

 chiae, 471: Body- wall, 473: Ccelome, 

 474 : Enteric canal, 475 : Blood- 

 vessels, 476 : Nervous system, 476 : 

 Organs of special sense, 478 : Organs 

 of excretion, 479, 480, 481 : Phosphor- 

 escence, 481 : Reproductive organs, 

 481 : Development, 483, 485 : Asexual 

 reproduction, 486, 487 : Mode of life, 

 &c., 488: Appendix, 489 



Ch(i-to#omid<i', 319 



Chalk, 56 



Charybdcea in(t)'*npi(i!ix, 181 



Cheilostomata, 347*, 348, 349, 351, 352, 

 354 



Chela, 543* 



Chelicerse, 653*, 662, 664, 665, 666 



Ghelifer braraisii, 662 



Chelipeds, 543* 



Chilaria, 666 



Chili na, 745 



Chilognatha, 615*, 617, 618 



Chilopoda, 615*, 616, 617, 618 



Chironomus, 644 



Chitin, 31, 46* 



Chiton, 680, 713, 714, 715, 717, 718, 719, 

 720 



Chitonell-us, 714 



Chlamydomyxa, 64, 65 



Chlorcsmidce, 475 



Chloragen cells, 45S 



Chlorophyll, 14, 58, 65, 68, 72, 78, 119 



Choanocytes, 107, 108, 109*, 111 



Choanoflagellata, 69* : General structure, 

 77 : Collar, 77 : Colonies, 77, 78 : Re- 

 production, 78 



Choetopteriis, 469 



Chondracanthus, 564, 575, 576 



Chordotonal organ, 645 



Chorion, of Cephalopoda, 798 : of Insects, 

 628 



Choristida, 126 



Chromatin, 16*, 17 



Chromatophores, Actinospha rinm,5T, 58 : 

 Chlamydomyxa, 65 : Flagellata, 71, 72: 

 Dinoflagellata, 78, 79: Sepia, 762: 

 Cephalopoda, 793 



Chromosome, 17, 18" 



Chrysalis, 651 



Cicada, 634, 646 



Cicatrix, 77<i 



Cidaris, 426 



Cilia, 23* 



Ciliary flames, 269 



Ciliary process, 771 



Ciliata, 91* : Form of body, 92, 93, 94, 

 95, 96, 97, 98 : Stalk, 92, 96, 97 : 



