INDEX 



557 



Sporocysts, 92 ; of Distomum macrostomum, 

 64, 65 ; of D. hepaticum, 67 ; hosts of, 

 71 



Staggers, induced by Coenurus, 82 



Statoblast, 493, 499, 501 f., 506 ; sessile, 

 502 ; germination, 501, 503, 514 ; re- 

 semblance to ephippian ova, 493 



Steenstrup, on Tape-worms, 76 



Steganoporella, 530 



Stelechopoda, 344 



Stelechopus, 342 



Stenostoma, 44, Jf.9 ; asexual reproduc- 

 tion, 44 



Stephanoceros, 202, 205, 210, 213, 220, 221 



Stephanops, 225 



Stercutus, 376 



Sternaspidae, 258, 335 ; nephridia of, 305 



Stemaspis, 335, 411, 445 ; anatomy, 335, 

 336; shape, 259; shield, 259; head, 264 ; 

 chaetae, 265 ; gills, 268 ; intestine, 271 ; 

 compared with Gephyrea, 336, 447, 

 449 



Sthenelais, 299, 300, 309, 313 



Stichostemma eilhardii, 118 



Stilesia, 91 ; generic characters, 90 ; S. 

 centripunctata, 91 ; S. globipunctata, 91 



Stock, asexual, of Autolytus, 279 ; of My- 

 rianida, 281 



Stole, on Oligochaeta, 360 



Stolon, 480, 488, 518, 525 



Stolonata, 518 n. 



Stomatopora, 518, 532 



Stork, parasites of, 63, 163 



Strobila, 75, 76 



Strobilation, 76 



Strodtmann, on Chaetognatha, 191 



Stromatoporoids, 520 



Strongylidae, 131, 142 



Strongylus, 129, 142, 143, 160, 163 ; S. 

 filarict, 132 ; S. tetracanthus, 163 



Stuhlmann, on Polyzoa, 493 



Stuhlmannia, 359, 386 



Stylaria, 348, 377 



Stylets of Nemertine proboscis, 104, 110 



Stylochoplana, 18, 19, 20 



Stylochus, 19 ; development, 28 



Stylostomum, 19, 22 



Sub-cuticle, 125, 175 



Submalleate, 210, 211 



Succinea putris, infested by larvae of 

 Distomum macrostomum, 64, 66 



Sucker, of Leptoplana, 8, 16 n. ; of Tri- 

 clads, 35, 36 ; of Temnocephala, 53, 54 ; 

 of Monogenea, 53, 56, 57, 60 ; of 

 Digenea, 62, 64, 65, 69 ; of Cestodes, 

 75, 79 ; of Dinophilus, 243 ; of Chaeto- 

 pterus, 324 ; of Myzostoma, 342 ; of 

 larva of Polyzoa, 509, 511 



Summer-eggs, of Mesostoma, 48 ; of Roti- 

 fera, 216 



Sutroa, 376, 380 



Swim-bladder, of Syllidae, 272 



Swimming, of Leptoplana, 9, 10 ; of Poly- 

 clads, 23 ; of Rotifers, etc., 206, 235 



Syllidae, 258, 306 ; palps, 260 ; tentacles, 

 262 ; head, 262 ; parapodium, 264 ; jaw, 

 270, 271 ; alimentary tract, 271 ; swim- 

 bladder, 272 ; asexual reproduction, 

 278 f., 279 ; regeneration, 278, 283 ; 

 colours, 293 ; phosphorescence, 296 ; an- 

 cestral, 303 



Syllis, 274, 307 ; development, 278 ; 8. 

 armillaris, 307 ; S. ramosa, 282 ; S. 

 vivipara, 276 



Synapta, bearing Rotifers, 222, 227 



Synchaeta, 200, 204 f, 224, 226 



Synchaetidae, 223, 224 



Syncoelidium, 33, 42 



Syncytium, 125 



Syngamus trachealis, 130, 142, 144, 161, 

 163, 164 



Syrinx, 411 



Taenia, 74, 78, 79, 91 ; life-histories of 

 species of, 83 ; table of species, 89 ; 

 T. {Cysticercus) acanthotrias, 80 ; T. 

 coemmis, 81, 82; life - history, 83; 

 specific characters, 90 ; T. crassicollis, 

 life-history, 78, 83 ; specific characters, 

 89 ; T. echinococcus, 80 ; life-history, 

 83 ; specific characters, 90 ; T. krabbei, 

 81 ; T. marginata, 81 ; life-history, 83 ; 

 specific characters, 90 ; T. {Hymenolepis) 

 murina, 70, 80 n., 89 ; life-history, 80, 

 83 ; specific characters, 91 ; T. per- 

 foliata, 163 ; T. saginata { = T. medio- 

 canellata), 78, 79 ; life -history, 83 ; 

 specific characters, 89 ; T. serialis, 82 ; 

 life-history, 83 ; specific characters, 90 ; 

 T. serrata, 81 ; life-history, 83, 87, 89 ; 

 specific characters, 90 ; T. solium, 79 ; 

 life-history, 79, 83 ; specific characters, 

 89 



Taeniasis, 82 



Taeniidae, 91 



Tail, of Arenicola, 333 ; of Nereis, 246, 

 248 ; regeneration of, 283 



Tanypus, host of Gordius, 172 



Tape-worms, 5, 74 



Taphrocampa, 200, 204, 224 



Tardigrada, affinities, 344 



Telmatodrilus, 378 



TemnocepJmla, 4, 53, 54, 73 



Temnocephalidae, 53, 73 ; habits and 

 structure, 53 f. ; affinities, 54 



Tennent, on land-leeches, 408 



Tentacles, in Polyclads, 15, 26 ; in Tri- 

 clads, 30, 36 ; in Yurticeros, 45, 46 ; 

 in Trematodes, 53 ; (peristomial), of 

 Spionidae, 322 ; (prostomial), 255, 260, 

 262 f. ; of Nereis, 248 ; of Polycirrus, 

 294, 295 ; of Polygordiits, 244 ; of 

 Terebellids, use of, 289 ; nerves to, 

 254 



