INDEX. 



Dissogony, 206. 

 Dissonema, 134. 

 Distemma, 309. 

 I >istephanus, 35. 

 Distichopora, 129. 

 Distichopus, 509. 

 Distomnm, 238 : agamos, 



'227, 231 ; cirrigerum, 



226 ; clavigerum, 226 ; 



eygnoides, 229, 231 ; 



cylindraceum, 226 ; 



echinatimi, 231 ; hep- 



aticum, 229, 231 : 



lanceolatnm, 229 ; 



maerostomum, 231 ; 



ovocaudatum, 229 ; 



tereti.M.llr, 229. 

 Distyla. 310. 

 Disyrintra, 94. 

 Dizoic, 60. 

 Dochmius, 280, 285. 

 Docoglossa, 394. 

 Dodecaceraea, 485. 

 Dodecaceria, 485. 

 Dog-whelk, 396. 

 Dolabelk, 407. 

 Doliehoplana, 222. 

 Doliuni, 378, 400. 

 I lomoponi, 566. 

 Donax, 347. 

 Dondersia, 355. 

 Doramasia, 149. 

 Dorataspis, 23. 

 Doratopsis, 445. 

 Doridioidea. 412. 

 Doridium, 362, 405,406. 

 Doridopsis, 371, 412. 

 Doris, 385, 412. 

 Dorsal in eestoda, 247, 



248. 

 Dorsal in polyzoa, 552 ; 



nematoda, 276 ; pen- 



natulacea, 180; actini- 



aria, 184. 

 Dorylaiinus, 291. 

 Dorypleres, 97. 

 Dosinia, 348. 

 Doto, 412. 

 Dragma, 86. 

 Dragmastra, 94. 

 Dreissena, 347. 

 Drepanidiidia, 61. 

 Drepanidium, 62. 

 Drepanomonas, 47. 

 Drepanopliorus, 271. 

 Drifa, 179. 

 Drillia, 397. 

 Drilonereis, 481. 

 Druinella, 98. 

 Druppula, 23. 

 Dubenia, 181. 



Dufouria, 59. 

 Dujardinia, 476. 

 Duncania, 194. 

 Duthiersia. 256. 

 Duva, 179. 

 Dysactis, 187. 

 Dyscannota, 134. 

 Dysideopsis, 98. 

 Dysmorphosa, 131. 

 Dysomorpha, 131. 

 Dysteria, 46. 



Ear-shell, 394. 

 Earthworm, common, 



512; habits, 507. 

 Ecardines, 585. 

 Ecdysis, 275. 

 Euheneibothrium, 244, 



259. 



Echinella, 234. 

 Echinobothrium, 259. 

 Echinocephalus, 59. 

 Echinoclathria, 96. 

 Echinococcifer, 261. 

 Echinococcus, 251, 253. 

 Echinoderes, 312. 

 Echinodictyum, 96. 

 Echiuopora, 196. 

 Echinorhynclms, 297. 

 Eehinospira, 362. 

 Echiuroidea, 527. 

 Echiurus 528, 530, 533. 

 Ecionema, 94. 

 Eclipidrilus, 508. 

 Eetocyst, 549. 

 Ectoderm, 99. 

 Ectolithia, 21. 

 Ectopleura, 130, 131. 

 Ectoprocta, 564. 

 Ectosome, 78. 

 Ectyoninae, 96. 

 Edwardsia, 189. 

 Eimeria, 60. 

 Electra, 565. 

 Eledone, 440, 446. 

 Elephantiasis, 289. 

 Eleutheria, 131. 

 Ellipsis, 23. 

 Ellipsoidina, 13. 

 Eloactis, 188. 

 Elysia, 413. 

 Elysioidea, 413. 

 Elytra, 461. 

 Emarginula, 361, 376, 



394. 



Embolocephahis, 509. 

 Etninoscolex, 511. 

 Emma, 565. 

 Enchelidiuni, 291. 

 Enchelina, 38, 40, 45. 

 Enchelys, 45. 



Enchytraeus, 505, 509. 

 Encotyllabi>, 234. 

 Eneystinent, 2. 

 Endocoele, 184. 

 Eudocyst, 549. 

 Endoderm, 99. 

 Endoderm lamella, 112. 

 Endogastric, 425 ; coil, 



384. 



Endogeny, 55. 

 Endoplasm, 3. 

 Endopsammia. 197. 

 Endosphaera, 53. 

 Endosporeae, 16, 17. 

 Enerthenema, 17. 

 Enipo, 478 

 Enoi)lidae, 282. 

 Enoploteuthis, 440, 445. 

 Enoplus, 291. 

 Entalophora, 566. 

 Enteric cavity, 9'.). 

 Enteridium. 17. 

 Enterostonnun, 220. 

 Entocolax, 320, 365,371, 



402. 

 Entoconcha, 320, 365, 



371, 377, 378, 3Mi, 



402. 



Entodinium, 49. 

 Entolithia, 21. 

 Entoprocta, 568. 

 Entovalva, 327, 341,345, 



349. 



Eolis = Aeolis. 

 Eosphora, 309. 

 Eozoon, 15. 

 Epallax, 97. 

 Epenthesis, 134. 

 Ephelota. 52, 53. 

 Ephesia, 476. 

 Ephipodonta, 347. 

 Ephydatia, 96. 

 Ephyra, 157, 161, 167. 

 Ephyroninae, 158, 166. 

 Epibdella. 234. 

 EpiVmlia, 149, 156. 

 Epiclintes, 49. 

 Epimerite, 57. 

 Epipodia, 318. 

 Epijiodium, 357. 

 Epistonie, 551 ; of Plio- 



ronis, 543. 

 Epistonie, 551. 

 Epistreptophylluin. 196. 

 Epistylis, 39, 41, 51. 

 Epitheca, 194. 

 Epithelio-muscle, 100. 

 Epithetosoma, 533. 

 Epizoanthus, 189. 

 Erato, 400. 

 Eretmia, 310. 



