kU 



INDEX 



Cell-colony, 50*, 66 



Cell-division, 17, 18 



Cell-plate, 17, 19* 



Cell-wall, 16* 



Cellepora, 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 Medusiie, 151 



Centro-dorsal ossicle, of Antedon, 406 



Centrolecithal, 537, 219* 



Centrosome, 17* 



Cephalic apodeme, of Apus, 533 : Asta- 



. c^l,s, 542 



Cephalopoda, 680, 759*. Examples, 759, 

 776 : Distinctive characters a.ni dassi- 

 fication, 789 : Systematic pcmtiin of 

 the examples, 790 : General organisa- 

 tion, 790 : External features, 790 : 

 Shell, 793: Internal skeleton, 796: 

 Gills, 797 : Osphradia, 797 : Ccelome, 

 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 Astants, 541 



Cerata, 744 



Ceralella, 146 



Oeratella Jusca, 145 



Geratites nodosus, 795 



C'erathim, 79 



Ceratosa, 126 



Ceroaria, 244, 245* 



Cerci, 623 



Cerebral organ, 294*, 495 



Cerianthus, 200, 202 



Cervical fold, of Apus, 527 



Cervical glands, 306 



Cervical groove, of Astacus, 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 



Getonia aurata, 316 



Chseta, 440 — See Seta 



Ghcetoderma, 713, 715, 716, 717, 718 



Ghcetogasta, 486 



Cheetognatlia, 297*, 316 : External char- 

 acters, 316 : Body-vpall, 316 : Enteric 

 canal, 317 : Ccelome, 317 : Nervous 

 system, 317 : Sensory organs, 318 : 

 Reproduction, 318 : Development, 

 318 



Chcetonotus, 336 



Ghcetopterus, 469, 481 



Ghcetosoma, 319 



Chcetosomidce, 319* 



Chatopoda, 439 : Examples, 440, 454 : 

 Distinctive characters and classifica- 

 tion, 464 : Systematic position of ex- 

 amples, 466 : General organisation, 

 467 : General form, 467, 468 : Para- 

 podia and setse, 468, 469, 470 : Bran- 

 chife, 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 



GhcKtosomidie , 319 



Chalk, 56 



Gharybdcea marsupialU, 181 



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

 354 



Chel83, 543* 



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



Ghelifer bravaisii, 662 



Chelipeds, 543* 



Chilavia, 666 



GMliiia, 745 



Chilognatha, 615*, 617, 618 



Chilopoda, 615*, 616, 617, 618 



Ghironomus, 644 



Chitin, 31, 46* 



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

 720 



Ghitonellus, 714 



Ghlamydomyxa, 64, 65 



Chlorcemidce, 475 



Chloragen cells, 458 



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



Choanocytes, 107, 108, 109*, 111 



Ohoanoflagellata, 69* : General structure, 

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

 production, 78 



Chcetopterus, 469 



Ghondracanthiis, 564, 575, 576 



Chordotonal organ, 646 



Chorion, of Cephalopoda, 798 : of Insects, 

 628 



Choristida, 126 



Chromatin, 16*, 17 



Chromatophores, Actinospliirri am, 57, 58 

 Ghlamydomyxa, 65 : Flagellata, 71, 72 

 Dinoflagellata, 78, 79: Sepia, 762 

 Cephalopoda, 793 



Chromosome, 17, 18* 



Chrysalis, 651 



Gicada, 634, 646 



Cicatrix, 776 



Gidaris, 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 : 



