634 



INDEX 



76 f.; of Proteomyxa, 90 ; of Sporozoa, 

 97 ; of Flagellata, 109 f. ; of Protoinas- 

 tigaceae, 111 ; of Volvocaceae, 111 ; of 

 Infusoria, 136 ; of Ciliata, 137 ; of 

 Suctoria, 159 ; of Sponges, 183 f. ; of 

 Coelenterata, 249 f. ; of C'tenophora, 

 417 f . ; of Eleutherozoa, 430 f. ; of 

 Asteroidea, 459 f. ; of Ophiuroidea, 

 491 f. ; of Echinoidea, 529 f. ; of 

 Endocyclica, 532 ; of Clypeastroidea, 

 548 f. ; of Spatangoidea, 552 ; of 

 Holothuroidea, 567 f. ; of Pelmatozoa, 

 580 ; of Crinoidea, 589 f. 



Ckithria, 225 



Clathrina, ISG, 221, 231 ; C. hlanca, 

 larva of, 227 



Clathrinidae, 1S5 f. 



Cliithrissa, 223 



aalhrn:.,„n, -211, 279 ; C. wilsoni, 279 



CI(ithr,iIi,u,, 71, 73, 74 



Cliii-ii, .';.' : ('. squamata, 263 



Clavatdla, 267, 'HO 



Clavatellidae, 2.10 



Clavidae, -Zl"! 



Clavularia, 330, 334, 3U ; G. viridis, 

 329, 337, 343 f., 344 



Claviilai-iidae, 344 



Clearing of tissues, physical explanation 

 of, 11 



CUmacnyrapt)! s, 2S2 



CUona, 219, 224 



Clionidae, 218 



Cloaca of Holothvria nigra, 563 



Clypeaster, 548, 549 



Clypeastridae ( = Ecliinantlndae), 549 



Clypeastroidea, 529, 542 L, 556, 559, 566 



Cfi/lia, 280 ; 0. johnstoni, 21 o, 280 f. 



Cnidoblast, 247, 248 



Cnidocil, 248 



Cnidopod, 248 



Cnidosac, 300 



Coalescence of individual Rhizopods during 

 bud-fission, 55 



Coccidiaceae, 97, 99 f. ; relations to Try- 

 2)fmosoma, 1 20 



Coccidiidae, 97, 99 f., 101 



Coccidiosis, 102 



Coccidiwm, 99 f., 101 f. ; C. cinuculi, 

 102 ; C. lacazei, syngamy of, 101 ; 

 C. schuhergi, 99 f., 101 



Coccolithophora, 110 



Coccolithoplioridae, in Chalk, 70 ; wall of, 

 114 



Coccoliths, 83, 110, 114, 242 



Coccoseridae, 34^ 



Coccosi)heres, 83, 114 



Coclcroach, Lophomonas parasitic in gut 

 of, 123 



Cadaster, 599 



Codosicja, 111 



Coelenterata, 243 f.; definition, 245; almost 

 all immune from Gregariues, 99 



Coeliac canal of Antedun rosacea, 586 



Coelogorgia, 349 



Coelogorgiidae, 349 



Coelom (including body-cavity), 428 ; of 

 Asfcrias riibens, 437 ; of arm of 

 02)liiothrix fragilis, 480 ; of Echinus 

 esculcntus, 516 ; of Ifolothuria nigra, 

 562 ; of Antedon rosacea, 585 ; de- 

 velopment of first rudiment in larva, 

 605 ; subsequent development in Di- 

 pleurula, 608, 609 ; in Asterina gibbosa, 

 611 ; in Antedon rosacea, 618, 619 



Coelomic nervous system, of Asterias 

 rvhens, 448 ; of Ophiothrix fragilis, 

 488 ; of Echinus esculentus, 524 ; of 

 Holothuria nigra, 566 ; of Antedon 

 rosacea, 584, 585 



Coeloplana, 412, 4^2 ; C. viitsukurii, 

 422 



Coeloplanidae, 4'23 



Coenocyte, 30 



Coenograptus, 282 



Coenopsa m mia, 404 



Coenosteum, 371, 387 



Coenothecalia, 344 



Cohn, Ferdinand, on cultures of Schizomy- 

 cetes, etc., 44 



Cold-blooded Yertelirates, as hosts of 

 Haemosporidae, 102 



Coleps, 137; mail-like pellicle of, 141, 

 152 ; C. hirti's. group feeding, 150 



Collar, of Choanoflagellates, 121 f., 122; 

 of peristome of Vorticella, etc., 156 



Collar-cells, in Choanofiagellates, 121 f., 

 122, 171, 237 ; of Calcarea, 186 ; of 

 Non - Calcarea, 176, 200 — see also 

 Choanocytes 



Collencyte, 171 



Colletocystophores, 320 



Collida, 77 n. 



Colloblasts, 414 



Collodaria, 77 



Colloidea, 77 



Collosphaera, 77 ; symbiotic Diatoms in, 

 86 



Collosphaeridae, 85 



Collozoidae, 85 



CoUozoum, 77 ; C. inerme, 76 



Collyritidae, 559 



Colobocentratus, 532, 542 



Colonial, cells, 31 ; Protista, 31 



Colony, 31 ; of CoUozoum inerme, 76 ; 

 -formation in Polycyttarian Radiolaria, 

 84 f. ; in Flagellata, 113 ; of Choano- 

 flagellates, 121, 122 ; in Vorticellidae, 

 158 : of Volvocidae, 126 f. ; of Pan- 

 dori,i'\ ViS f. ; of Eudorina, 129 



Colour, r.^l. 1,1 lakes and ponds, often due 

 to ])in.ilia,t,'cllata, 131 



Coloured vegetal nutrition, 36 f. 



Colouring matter of chromatojiliores of 

 Flagellates, 115 n. 



