INDEX 



539 



Cercaria, 13, 65, 67, 71 1'. ; 0. macrocerca, 



72 ; C. cystophora, 72 

 Cercyra, 42 



Cerebral organ, of Nemertinea, 107 ; of 



Gephyrea, 417 

 Cerebratnlus, 101, 111, 114 ; British 



species, 111 

 Cerfontaine, on Earthworms, 349, 350 

 Cestoda, characters of the group, 5, 74 

 nature of, 76 f. ; occurrence, 77-82 

 life-histories, 83 ; structure and develop 

 ment, 84-89 ; synoptic table of, 89 f. 

 classification, 91 

 Cestodariidae ( = Monozoa), 91 

 CedopUma, 17, 18, 19 

 Cestoplanidae, 19 



Chaetae, 241 ; of Polychaeta, 266, 267 ; 

 provisional, 274 ; of Nereis, 246, 247 ; 

 of Heteronereid, 276, 277 ; jointed, 246 ; 

 natatory, in sexual Syllid, 278, 307 ; 

 iridescent, 268, 291, 312 ; palmate, of 

 Coabangia, 339 n.; colour, 291 ; genital, 

 of Capitella, 331 ; of Stemaspis, 336 ; 

 special, of Polydora, 261, 267, of Chae- 

 topterus, 267, 324 ; of Myzostoma, 342 ; 

 of Oligochaeta, 347, 350, 351, 352; 

 penial, 362 ; of Microdrili, 375 f. ; of 

 Megadrili, 381 f.; of Lumbricidae, 389, 

 390 ; of Leeches, 395, 396 ; (= hooks), 

 of Echiuroid Gephyrea, 434, 435, 438, 

 440 f., 446 

 Chaetifera, 445, 446 

 ChaetobrancJms, 352 

 Chaetogaster, 356, 377, 401 

 Chaetognatha, 186 f., 534 ; anatomy, 186 ; 

 development, 189 ; habits, 189 ; classi- 

 fication, 191 ; key to, 193 ; American 

 species, 534 

 Chaetonotus, 232, 235 

 Chaetopoda, 241 f. ; as food for Nemertinea, 



115 

 Chaetopteridae, 258, 893 

 Chaetopterus, 304 n., 323; anatomy, 323 f. ; 

 special chaetae, 267 ; larva, 274, 325 ; 

 pigment, 292 ; phosphorescence, 295, 

 296 ; commensals of, 298, 478, 533 ; 

 Ch. variopedatus, 324 

 ( 'haetosoma, 158 

 Chaetosomatidae, 158 

 Chaetosyllis, form of head, 278 

 Chaeto&me, 326 ; uncini, 268 

 Chaetura, 235 

 Chalk, Serpulids of, 301 

 Charles, on male guinea- worm, 148 

 Cheilostomata, 477, 506, 518, 519, 525, 

 526 f. ; occurrence, 478 ; external 

 characters (see also Avicularium and 

 Vibraculum), 481 ; ovicells, 507 ; re- 

 production, 507 f. ; larva, 511 ; fossil, 

 521 

 Chiaje, Delle, on Gephyrea, 411 

 Chickoff, on Triclads, 41 



Chironomus, host of Gordiw, 172 

 Chitin, 249, 267 ; in coelomic corpuscles, 



252 

 Chloeia, colour. 291 



Chlorhaemidaej 258, 305, 334, 336 ; 

 chlorocrnorin in, 252 ; head, 260, 262, 

 264 ; palps, 260 ; tentacles, 262 

 Chlorocrnorin, 252, 334 ; colour due to, 

 291 



Chone, 338 



Chorizopora, 530 



Cilia, 3 ; of Leptoplana, 10, 11, 12, 15 ; 

 of Polyclads, 23, 25, 26 ; of Midler's 

 larva, 29 ; of Land Planarians, 33 ; of 

 Planaria lactea, 35; of Teamceephak^ 

 53 ; of Trematode-larvae, 3, 59, 60, 65 ; 

 of Cestode-larvae, 87 ; absent in certain 

 groups, 124, 396 ; of Rotifers, 202 f. ; 

 of Archiannelida, 243, 244 ; of Echiu- 

 roidea, 434 ; of Phoronis, 453 ; of 

 Polyzoa, 467, 470 



Ciliated, lappets, of Pterosyllis, 273 n. ; 

 pits, of Polygordius, 244 ; pits ( = nn< lial 

 organs), of Polychaeta, 272 f. ; organs, 

 of Capitelliformia, 305 



Cingulum, in Rotifers, 202 



Cirratulidae, 258, 325 ; gill, 265 ; tentacu- 

 lar filaments, 304 n. 



Cirratulus, 326 ; burrows, 286 ; pigment, 

 292 ; colour, 293 ; viviparous, 276 ; C. 

 tentaculatus, 326 



Cirri, of Nereis, 246 ; of Polychaeta, 265 ; 

 of Myzostoma, 342 ; anal, 259 ; nuchal, 

 of Eunicidae, 318; peristomial, of Nereis, 

 248 ; nerves to, 254 ; of Polychaeta, 263 



Cladocora, with Myxicola, 294 



Claparede, on Heteronereis, 276, 277 ; on 

 Earthworms, 347, 355, 356 



Claus, on Nematoda, 138 ; on Seisonaceae, 

 225 n. 



Clepsine see Glossiphonia 



Clitellio, 366, 378 



Cloeosiphon, 424, 425, 429 



Clover sickness, 155 



Clymene, 833 ; C. ebiensis, tube of, 287 



Clymenidae see Maldanidae 



Coabangia, 284, 339 n. 



Cobb, on Nematoda, 131 n., 138 



Cobbold, on Nematoda, 140 



Cobitis, host of Gordius, 173 



Cochleare, 225 



Cocoons, of Triclads, 40 ; of Oligochaeta, 

 364, 365 ; of Leeches, 404 



Coelom see Body-cavity 



Coelomic fluid, of Polychaeta, 252 ; as 

 cause of colour, 291 



Coelopus, 225 



Cohn, on Rotifers, 198 



Collar, peristomial, of Sabellidae, 336 ; cf 

 Gephyrea, 421 ; of Ctenostomata. 470, 

 477, 480, 481 



Colonial nervous system, 471 



0#YV 



