INDEX 



793 



Crisia, 340 



Crista acustica, 750* 



Cnstatella, 341, 343 



Crop, 33 



Crown, of Coronata, 178 



Crural glands, 593 



Crustacea, 514, 662 : Example a, 514 : 

 Example 6, 527 : Distinctive char- 

 acters and classification, 548 : Sys- 

 tematic position of the examples, 

 J>55 i General organisation, 556 : Ex- 

 ternal characters and structure of 

 appendages, 556 : Texture of the 

 exoskeleton, 578 : Body-cavity, 578 : 

 Enteric canal, 578 : Respiratory 

 organs, 579 : Heart, 581 : Excretory 

 organs, 581 ; Nervous system, 581 : 

 Sense organs, 581 : Reproduction, 

 582 : Development, 582 : Ethology, 

 585 : Affinities and mutual relation- 

 ships, 587 : Appendix, 589 



Cryptocephala, 455*, 457, 464, 465, 

 472, 477 



Cryptomnnas, 73 



Cryptoniscus, 572 



Crystalline style, 668 : of Gastropoda, 

 724 



Ctenaria, 150, 224, 225 



Ctenidium, 669, 670, 671, 686 : of 

 Triton, 706 : of Gastropoda, 722, 723 



Ctenodrilus, 492 



Ctenophora, 129, 208 : Example, 208 : 

 Distinctive characters and classifica- 

 tion, 217 : Systematic position of the 

 example, 218 : General organisation^ 

 219, 220, 221, 222, 223 : Relation- 

 ships, 223 



Ctenoplana, 221, 222, 282 



Ctenopteryx, 768 



Ctenostomata, 340*, 342, 344, 346 



Cubomedusse, 175*, 179, 180, 181 



Cucumaria See Colochirus 



Cucumaria planci, 393 



Culex, 619, 623 



Cuma, 553 



Cumacea, 553*, 568, 579, 587 



Cunarcha, 155 



Cunina, 166 



Cunina parasitica, 156 



Cup-coral, 202 



Cursoria, 617, 621 



Cuspidaria, 678 



Cuticle, 32* 



Cuttle-fish, 663, 738, 767 



Cuvier, 3 



Cuvierian organs, 419 



Cyamus, 554, 571 



Cyanea arctica, 181 



Cyanophycece, 74 



Cyclas, 691 



Cyclidium, 96 



Cyclops, 551, 559. 560, 581, 582 



Cyclostomata, 340*, 342, 345, 346, 347 



Cydippe, 208 



Cydippida, 218*, 219 



Cymothoa, 572, 582 



Cynipidm, 632 



Cyphonautes, 346 



Cyprsea, 719 



Cypris, 550, 558, 559, 581 



Cypris stage, of Cirripedes, 551, 583 



Cyst, 13*, 71 : Amoeba, 46*, 47 : Didy- 



mium, 68 : Euglena, 70, 71 : Mono- 



cystia. 82, 83 

 Cysticercoid, 275 

 Cystic rcuft, 247, 275, 276 

 Cysticercus celluloses, 281 

 Cystoflagellata, 71* : Characteristic 



features, 81 



Cystoidea, 405*, 426, 428 

 Cythere, 550, 558, 559 

 Cytoplasm, 17* 



'ACTYLOPORES, of Millepora, 157* : 



Stylaster, 159 



Dactylozooids, 149*, 164 : of Mille- 

 pora, 158, 159 : Stylaster, 159 : 



Halistemma, 160, 162 

 Daddy long-legs, 620 

 Dahlia wartlet, 184, 185 

 Dallingeria, 73 

 Dalmanites sociaUs, 589 

 Daphnia, 550, 558 

 Darwin, 6 

 Dasychone, 466 

 Daughter-cell, 20* 

 Daughter-chromosomes, 19* 

 Daughter-cysts, 278 

 Daughter-nucleus, 19* 

 Daughter-segments, 19* 

 Day-flies, 626, 637 

 Dead men's fingers, 193, 200 

 Decapoda, 554*, 556, 572, 579, 581, 582, 



584, 585, 586, 587, 588 

 Decapoda (Cephalopoda), 767*, 768, 



781 

 Degeneration, in Copepoda, 562, 563 : 



in Cirripedia, 565 : in Tsopoda, 572 

 Deiopea, 220 

 Deltidium, 353* 

 Deltoid plates, 405 

 Demosponsia, 113* 

 Dendrochirotse, 406* 

 Dendroc<xlum See Planaria 

 Dendrocometes, 102 

 Dendrophyllia, 204, 205 

 Dendrosoma, 102, 103 

 Dentalium, 736, 737 

 Dentary region, 432 

 Denticles, 432 

 Depastridce, 176 

 Derm (dermis), 32* 



