INDEX 



539 



Cercaria, 13, 65, 67, 71 f. ; C. macrocerca, 

 72 ; C. cystophora, 72 



Cercyra, 42 



Cerebral organ, of Nemertinea, 107 ; of 

 Gephyrea, 417 



Cerebmtulus, 101, 111, 114 ; British 

 species, 111 



Cerfoutaine v 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 



Cestoplana, 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 Sternaspis, 336 ; 

 special, of Polydora, 261, 267, of Chne- 

 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 



C/utetobranchus, 352 



Chaetogaster, 356, 377, 401 



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

 development, 189 ; habits, 189 ; classi- 

 fication, 191 ; key to, 193 ; American 

 species, 534 



Chaetotwtus, 232, 235 



Chaetopoda, 241 f. ; as food for Nemertinea, 

 115 



Chaetopteridae, 258, 323 



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

 special chaetae, 267 ; larva, 274, 325 ; 

 pigment, 292 ; phosphorescence, 296, 

 296 ; commensals of, 298, 478, 533 ; 

 Ch. variopedatus, 324 



Chaetosoma, 158 



Chaetosomatidae, 158 



Chaetosyllis, form of head, 278 



Chaetozone, 3.26 ; uncini, 268 

 t'haetura, 235 



Chalk, Serpuli.ls of, 301 



Charles, on male guinea-worm, 148 



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

 526 f. ; occurrence, 478 ; external 

 characters (see also Avicularium and 

 Vibracnlum), 481 ; ovicells, 507 ; re- 

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

 521 



Chiaje, Delle, on Gephyrea, 411 

 Chickoff, on Triclads, 41 



OMronomus, host of Hording, 172 



Chitin, 249, 267 ; in coelomic corpuscles, 

 252 



Chloeia, colour 291 



Chlorhaemidae, 358, 305, 334, 336; 

 chlorocruorin in, 252 ; head, 260, 262, 

 264 ; palps, 260 ; tentacles, 262 



Chlorocruorin, 252, 334; colour due to, 

 291 



C/iouc, 338 



Cliorizopvra, 530 



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

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

 larva, 29 ; of Land Planarians, 33 ; of 

 Planaria lactea, 35 ; of Temnoeephaln, 

 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 P/un-cniis, 453 ; of 

 Polyzoa, 467, 470 



Ciliated, lappets, of Pterosyllis, 273 n. ; 

 pits, of Polygordiun, 244 ; pits ( = nuchal 

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

 of Capitelliformia, 305 



Cingulum, in Rotifers, 202 



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

 lar filaments, 304 n. 



Cirratitlns, 826 ; burrows, 286 ; pigment, 

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

 tentaculatus, 326 



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

 of Myzostoma, 34'2 ; anal, 259 ; nuchal, 

 of Eunicidae, 318; peristomial, of Nereis, 

 248 ; nerves to, 254 ; of Polychaeta, 263 



Cladocora, with Myxitola, 294 



Claparede, on Heteronereis, 276, 277 ; on 

 Earthworms, 347, 355, 356 



Glaus, on Nematoda, 138 ; on Seisouaceae, 

 225 n. 



Clepsine see Glossiphonia 



Clitellio, 366, 378 



Cloeosiphon, 424, 425, 429 



Clover sickness, 155 



Clymene, S33 ; C, ebiensis, tube of, 287 



Clymenidae see Maldanidae 



Coabanyia, 284, 339 11. 



Cobb, on Nematoda, 131 n., 138 



Cobbold, on Nematoda, 140 



Cobitis, host of (Jwdius, 173 



CocMeare, 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 



Cohu, on Rotifers, 198 



Collar, peristomial, of Sabellidae, 336 ; of 

 Gephyrea, 421 ; of Ctenostomata, 470, 

 477, 480, 481 



Colonial nervous system, 471 



