INDEX 



555 



Polyclads, 29 ; in Trielads, 37 ; absent 

 iu parasitic Rhalxlocoela, 45 ; in Temno- 

 cephala, 53, 64 



Rhabditiforniae, 137 



JUuiMitis, 154, 160 ; R. viffrovetivw, 140, 

 l,)j 



Rhabdocoelida, 4, 7, 36, 42 f. ; occurrence 

 and habits, 43 ; parasitic forms, 44 ; 

 reproduction, 47 ; classification, 4& > 

 British species, 43, 44, 49 



RhaMnrjaster, 1 58 



RhuMuiiema niyrovenosvm, 134, 136, 140, 

 151, 160, 161 



RJitiMojtleiim. 461 f. 



RliinwlrUus, 348 



Rliinopidae, 230 n., 224 



Rhinops, 224 5 male of, 223 n. 



Rhizopoda, as food for Polychaeta, 296 



Rhizota, 220 n. 



Rhoinbogen (form of Dicyemid), 93 



Rliupalonaria, 521 u. 



Rlxyalophonis, 73 



Rho2>ulum giurdii, occurrence and struc- 

 ture, 94, 98 ; R. iiitoshii, 94 



Rhynchehnis, 365, 37(J 



Rhynchobdellae, 396 f.. 405 



Rhynchodeniidae, 35, 42 



Rli >j itchodemus, 34, 35, 42 



Rhynchopora, 531 



RhynchozwH, 529 n., 531 



Riches, ou British Nemertmea, 110 ; on 

 MulaciMdht, 119 



Rietscli, on Gephyrea, 443 



Rockwonu, 319 



Rods see Rhabdites 



Rohde. on niuscles of Nematoda, 128 f. 



Rootlet, in Polyzoa, 485, 517 



Rosa, on Oligochaeta, 364, 380, 385, 390 



Rosette-plates, 471, 522 



Rot If e,; 201, 202, 210, 216, 222, 22G, 

 227 



Rotifera, 197 f . ; distribution, 200 ; para- 

 sitic, 204 ; digestive organs , 209 ; renal 

 organs, 213 ; nervous system and sense 

 organs, 215 ; reproduction and develop- 

 ment, 216 ; classification, 220 ; habits 

 226 ; preservation, 228 ; affinities, 229 



Rous.selet, on Rotifers, 198, 216, 228 



SABELLA, 299, 557 : parapodinm, 265 ; 



habitat, 286 ; tube, 287 ; tube-building, 



288 ; colour, 293, 294 ; <S. saxiamt, 



habits of, 287 

 Kubdlnria, 341 ; body, 259 ; cirri, 265 ; 



tube, 287, 290 ; A aim**', 259, 300 ; 



8. i>iitl,*a, palcae, 267, 300 

 Sabellidae, 25S, 330 ; la-ad, 261 ; ehaetap, 



266, 267 ; regeneration, 283 ; from fresh 



water, 284 ; colour, 292 

 Sabelliformia, 258, 30C, 336 ; chlorocruorin 



in. 252 ; body, 259 ; head, 260, 2til ; 



uiicini, 266, 267 ; nephridia, 269, 306 ; 



genital organs, 273 ; development of 



gills, 275 ; gland shields, 2S7 

 Sciccobdellu, 2M 

 Sftccontreis, 275, 276, 280 

 Sdccosoma, 434, 440, 442 

 Stiyitelln, 321 

 Sur/itt, 18(J, 186, 181, 534 ; anatomy, 186 



f., 188 ; development, 189 ; habits, 190 : 



species, 191, 193 ; American species. 534 

 Saleusky, on development of Nemertinen, 



99 ; of Rotifers, 218 

 Salineila, 93, 96 

 Salivary glands, in Polyclads, 10, 24 ; in 



Leeches, 396 

 Salmacina, 273, 341 ; brood- pouch, 276 ; 



fission, 281 

 Rcdpina, 200, 225 

 Salpinidae, 225 

 Sandmason, 328 



Sitxicava-, Eulalia in borings of, 314 

 Scales, of Gastrotricha, 233 

 Scalibreyma, 334 

 Scalibregmidae, 258, 334 

 Scapha, 259, 330 

 Scandium, 201, 207, 225 

 Schistocepludus, 75, 01 ; reproductive 



organs, 86 ; larva, 84 ; life-history, 78,85 

 Schizocerca, 225 



Schizogamy, in Syllidae, 278, 279. 281 

 Schizonemertea, lU'J; characters. 111 ; de- 

 velopment, 113; transverse .section. 103 

 Schizoporel/a, 51S, 527, 528, 529, 530, 531 ; 



zooecium and avicularia, 482 ; Lepto- 



l>lana on, 22 

 Schizotheca, 482, 51$, 529 

 Schmarda, on OHgochaeta, 366, 387 

 Schmi.lt, ou Rhabdocoels, 6 

 Schneider, on life-history of certain Mcso- 



stmna, 48 ; ou classification of Nematoda. 



129 ; on oesophageal glands, 131 ; on 



Strongylid.it', 142 

 Schultze, on Polyclads, 13, 26 ; on Xemer- 



tinea, 108, 109 

 &hvtt-ia, 50 

 Schnlze, F. E., Sticliostennna found by, 



118 ; Trichot>l.e found by, 96 

 Scirtojxxla, 200, 201, 203, 206, 207, MJ 

 Sclerocheilits, 3,14 

 SclerosfomwH, 163 

 Scoleciformia, 258, 305, 331 f. ; vascular 



system, 252 ; but-cal region, 269 ; food 



of, 296 



Scolccolfpis, 299. 322 

 Scolex, 5, 74, 75 f., 89 : X. p,>lifi,>rphu*. 



77 ; of T,ieai,t mJiitui, 79 

 iut, 302 



tJiqtlos, 299, 321 ; parapo<lium, 265 : 



habitat, 286 



-riiparia, 527 



nifiticelldriii. 517. -7/.S', 519, 526; vibra- 



cula, 477, 485, 517 ; i)hosphorescence, 



478 ; larva, 511 



