INDEX 



543 



Enterostotiia, 46 ; British species, 50 

 Entoprocta, 475, 479, 487 f., 518 ; lopbo- 

 phore, 476 ; reproduction, 506 ; larva, 

 609, 510 



Eosphom, 216, 218, 224 



Ephemera, host of Gvrdius, 172, 173 

 Ephesia, 321 

 Epibddla, 56, 73 



Epidermis, of Leptoplana, 11, 12 ; of Poly- 

 clads, 20, 25, 29 ; of Trematodes, 56 ; 

 of Cestodes, 85 ; of Nemertiuea, 102 ; of 

 Nematoda, 125 ; of Acanthocephala, 

 175 ; of Nereis, 249 ; of Oligochaeta, 

 349 ; of Leeches, 396 ; of Gephyrea, 

 414 ; of Phoronis, 454 see also Hypo- 

 derm is 



Epigamous, phase, of Nereis, 277 n. ; worms, 

 281 



Epistome, in Phoronis, 453, 466 ; in Phy- 

 lactolaemata, 476, 476, 499 ; in larva of 

 Loxosoma, 609 



Epithetosoma, 444, 446, 449 



Epithetosomatoidea, 412, 444 



Epitokous, phase, of Nereis, 277 n. 



Eretmia, 225, 226 



Eriographidae, 258, 388 



Erpocotyle, 73 



Errantia, 258, 285 



Eschar a, 516 



Escharina, 518 



Escharoules, 527 



Euchlanididae, 225 



Euchlanis, 2J5, 226 



Eucratea, 518, 525, 527, 528 



Eudrilidae, 359, 360, 380, 385, 403 f. 



Eudrilus, 354, 385, 403 f. 



Euichthydina, 235 



Eulalia viridis, 314 > pigment, 292 ; colour, 

 293 ; eggs, 314 n. 



Eumenia, 334 



Eunice, 318, 319 ; nephridium, 254 ; eye, 

 255 ; head, 262 ; parapodium, 264 ; gill, 

 265 ; chaetae, 266, 267 ; jaws, 270 ; sub- 

 stance of tube, 290 ; commensal, 298 ; 

 E. tibiana, 290 



Eunicidae, 258, 318 ; palps, 260 ; tentacles, 

 262 ; .jaws, 270 ; tube, 285, 290 ; colour, 

 291, 292 ; parasitic, 297 ; tubes con- 

 taining Polynoids, 298 ; Palaeozoic, 302 



Eunicites, 301, 302 



Euphrosyne, 318 ; parapodium, 266 ; 

 chaetae, 267 



Eupolia, 113 



Eupolyzoa, 461 



Eurycercus, shell of, inhabited by Rotifers, 

 227 n. 



Eurylepta, 19 



Euryleptidae, 19 



Eurythoe, 318 



Eustrongylus gigas, 142 ; E. tubi/ex, 142 



Eusyllis, reproduction of, 278 



Excretion, as cause of colour, 291 



Excretory system, of Leptoplana, 13 ; of 

 Polyclads, 25 ; of Triclads, 41 ; absent 

 iu Acoela, 42 ; of Temnocephala, 64 ; of 

 Digenea, 62 ; of Cestodes, 86 ; of Ne- 

 mertinea, 108, 108, 120 ; of Nematodes, 

 133 ; of Acauthocephala, 177 ; of Roti- 

 fers, 199, 213 ; of Gastrotricha, 234 ; of 

 Kinorhyncha, 237 ; of Polychaeta, 253 ; 

 of Polyzoa, 472 f. see also Nephridium 



Exogone, 308 ; attachment of eggs, 275 ; 

 reproduction, 278 



Eyes, of Leptoplana, 8, 16 ; of Polyclads, 

 26, 27 ; development of, 30 ; of larval 

 Polystomatidae, 69, 60 ; of Nemertinea, 

 102, 106 ; of Nematodes, 128 ; otUmdius, 

 166 ; of Chaetognatha, 188 ; of Rotifera, 

 215; of Gastrotricha, 234; of Kino- 

 rhyncha, 238 ; of Polychaeta, 266, 272, 

 314, 337, 339 ; of Oligochaeta, 354 ; of 

 Leeches, 393, 394, 395 ; of Gephyrea, 

 417 ; of Polyzoou larva, 609 



FABRICIA, 339 ; eyes, 272 ; otocyst, 273 



Faecal groove, of Sabellids, 337 



Fans, of Chaetopterus, 296, 324 



Faraday, on asexual reproduction of Plan- 

 ariae, 6, 40 n. 



Farre, on Polyzoa, 500, 508 



FarreUa, 500, 518, 533 



Fasciola, 67 



Fecampia, life-history, 45 



Felt, of Aphrodite, 268, 312 



Fertilisation, of Nemertinea, 117 ; of Ne- 

 matodes, 135 ; of Gordiidae, 171 ; of 

 Acanthocephala, 179; of Chaetognatha, 

 188; of Rotifers, 217 



Filar ia, 147, 163 ; F. attentiata, 134 ; F. 

 cystica, 142 ; F. dentimlata, 125 ; F. 

 immitis, 148 ; F. labiata, 163 ; F. lati- 

 candata, 125 ; F. lw, 149 ; F. medi- 

 nensis, 147, 157, 163; F. sungvittis 

 hominis, 149, 163; F. papillosa, 163 



Filariidae, 147 



Filigrana, 340 ; fission in, 281 ; tubes, 290 



Fimbria tennis, 157 



Fischer, on branchiae in Gephyrea, 416 n. 



Fishes, Trematodes of, 4, 53, 55, 62, 64, 

 71, 72 ; Cestodes of, 77, 84, 85 ; Nema- 

 thelnmithes of, 142, 143, 149, 163, 173, 

 182 



Fission, in Bipalium, 34 ; in Planariae, 

 40 ; in Tricluiplax, 96 ; in Salitiella, 

 96; in Polychaeta, 278 f., 279, 280, 

 282, 340; in Oligochaeta, 374, 375, 377 ; 

 in Phylactolaemata, 496 ; in embryos, 

 365, 511 



Fissurella, as host, 298 



Flabelligera, 334 



Flame-cells, in Isptoplana, 13 ; in Thy- 

 sanvzoon, 25 ; iu Triclads, 41 ; iu Tern- 

 mxephala, 54 ; in Polystomatidae and 

 Tristomatidae, 56 ; in Distomum luteuin, 



