540 



INDEX 



Colony, of Myrianida, 281 ; of Syllis 

 ramosa, 282 ; of Polyzoa, 466 



Colourof Polyclacls,20; of Land Plauarians, 

 33 ; of Nemertinea, 102 ; of Polychaeta, 

 291, 314, 340 



Coluridae, 207, 225 



Colurus, 225, 226 



Comatula, as host, 342 



Commensal, Polychaeta, 297 f., 323, 325 ; 

 Gephyrea, 428, 429 ; Polyzoa, 489 



Conn, on development of Gephyrea, 419 n., 

 441, 444, 447 



Conoceros, 19 



Conochihis, 202, 203, 205, 215, 221, 226 



Conocyema, hosts of, 94 



Convoluta, 45 ; British species, 43, 49 ; C. 

 henseni, pelagic habit, 43 ; C. roscoffensis, 

 assimilating tissue, 43 



Copepoda, on Polychaeta, 299 



Copeus, 215, 224 



Coral reef's, Polychaeta in, 293 



Cffrallina (=Coralliue Alga), 14, 488, 516 



Coralline, 465 



Coralline Crag, 465, 521 



Cornllobothrium, 91 



Curethra, host of Gordius, 172 



Cori, on Phorimis, 451 f. 



('oniidites, 302 



Cotylea, 16 f., 17, 18 



Cotyloyaster, 73 



C'otyluplaim, 35 



Orateroinorpha, as host, 282 



Crayfish, Temnocepluda associated with, 

 53 



Creeper, 317 



Crepina, 450 



Cretaceous, Polyzoa, 520, 521 



Oribriliiui, 518, 624, 528 



Crinoids, as hosts, 341 



CriodrUus, 3,')8, 366, 386 



Crisia, 471, 478, 479, 480, 507, 518, 531 



Crisiidae, 517 



Crisp, on Parasites, 164 



CrutateUa. 494 f., 495, 499, 501, 503-505, 

 512, 518 ; attacked by Plauarians, 486 ; 

 movements, 494, 496, 498 ; fission, 496, 

 506 ; statoblast, 502, 503 ; larva, 512 



Crossopodia, 302 



Crotchets, 266, 267, 305, 322 



Crustacea, parasites of, 174, 179, 182 



Cryptocelis, 19, 24 



Cryptocephala, 258, 303, 305 ; vascular 

 system, 252 ; prostomium, 259 ; tenta- 

 cles, 263 ; eyes, 272 ; food, 296 



Cryptodrilidae, 357, 362, 373, 382 



Cryptndrilus, 372, 382 f. 



CtetUKlrilm, 373 



Ctenophores, as hosts, 298 



Ctenostomata, 470, 477, 479, 480, 518, 

 532 ; occurrence, 478 ; in fresh water, 

 492 ; external characters, 480 ; repro- 

 duction, 507 ; larva, 511 ; relation to 



Phylactolaemata, 493, 502 f. ; fossil, 

 521 n. 



Cucidlamis, 136, 142, 163 ; C. elegaru, 

 143, 161 



Oucumaria, as host, 298 



Cuenot, on Gephyrea, 416 n. 



Cuticle, of Nemathelminthes. 125, 165, 

 175 ; of Rotifera, etc., 205, 233, 236 ; of 

 Polyzoa, 470 see also Epidermis 



Cuvier, on Oligochaeta, 352 ; on Gephyrea, 

 411 



Cyclatella, 489 



Cydicokiella, 392 



Cycloporus, 19, 22, 24 



Cyclops, parasites of, 143, 148, 161 



Cyclostomata, 477, 479, 506, 517, 518, 

 525, 531 ; occurrence, 478 ; external 

 characters, 480 ; ovicells, 507 ; repro- 

 duction, 507, 511 ; larva, 511 ; fossil, 

 520, 521 



Cydippe, as host, 298 



Qylindroecium, 533 



C'ylindrostoma, 46 ; British species, 50 



Cyphonautes, 509, 510, 512. 520 



Cyprina, Malacobdella, found on, 119 



Cyrtonia, 224 



Cyst, of Land-Planarians, 33 ; of Myzo- 

 stoma, 342, 343, 344 ; (capsules), of 

 Aeolosoma, 370, 375 



Cystibratichns, 395, 406 



Cysticercoid-larva, 83, 85, 88 



Cysticercus-\n.rva,, 79, 80 ; list of, 83 ; C. cel- 

 lulosae, 79, 80 ; C. pisiformis, develop- 

 ment, 81, 85, 89 



Cysticolous, Myzostomaria, 344 



Cystoidotaeninae, 91 



Cystotaeuiuae, 91 



DACTYLOQYRUS, 73 



Dal yell, on habits of Turbellaria, 6, 10, 



20 ; on regeneration in Polychaeta, 283 ; 



on tubes of Polychaeta, 287 ; on Hini- 



dinea, 405 n. ; on larvae of Flustro, 466 ; 



on Cristatella, 496 

 Danielsseu and Koren, on Gephyrea, 442, 



444 



Daphnia, Rotifers attached to, 227 

 Dapidia, 225 



Darwin, on Earthworms, 354, 359, 368 

 Dasybranchus, 331 ; gill, 268 

 Dasychmie, 338 ; gills, 261 ; eyes, 272 ; 



regeneration, 283 

 Dnsyiletes, 232, 235 

 Davaiue, on Nematoda, 140, 145 

 Daoaiiiea, 91 ; ]>. friedliergeri, 84 ; D. 



madai/ascariensis, 80, 84 ; Z>. yrofflottina, 



life-history, 84 

 Davenport, on Urnatella, 491 

 Davis, on Rotifers, 227 

 Deep-sea, Polychaeta, 300 ; Polyzoa, 478 

 Deinwlrttus, 351, 384 

 Ddngiu, 478 n. 



