INDEX. 



383 



Crystallodes, 1C2 

 Ctenobranchia, 321 

 Ctenodisous, 158 

 Ctenophora, 108 

 Ctenostomata, 241 

 Cuoumaria, 181 

 Culcita, 159 

 Cunina, 88 



Cup-and-sauoer limpets, 345 

 Cup sponge, 64 

 Cuttle-bone, 374 

 Cuttle-flsb, 374 

 Cuvieria, 858 

 Cuvierian organs, 177 

 Cyanea, 90 

 CyanidsE, 90 

 Cyathomouas, 33 

 Cyoladidse, 275 > 

 Cyolas, 274 

 Cyolooaidia, 376 

 Cyolophorus, 340 

 Cyolostoma, 340 

 Cyolostomata, 240 

 Cyclostomidse, 339 

 Cyolotus, 340 

 Cydippe, 111 

 Cyliolmaj 302 

 CyUndrellid^, 310 

 Cymbium, 327 

 Cymbulia, 359 

 Cymbulidse, 358 

 Cypraeidse, 348 

 Cyrenia, 275 

 Cyrenidae, 275 

 Cyprina, 275 

 Cyprinidse, 275 

 CystecHnus, 174 

 Cystlcerous, 199 

 Cyatidea, 139 

 Cystobranohus, 235 

 Cytherea, 277 

 Cytode, vii 



Dactylocalyx, 71 

 Dactylometra, 92 

 Dactylozooid, 88 

 Darts, 305 

 ^ Darwinella, 64 

 Darwinian theory, liii 

 Darwinism, liii 

 Dead-man's-fingers sponge, 65 

 Deoacera, 372 

 Decapoda, 372 

 Degeneration, xv 

 Delamination, xi 

 DelpUnula, 323 

 DendrocMrotse, 181 

 Dendroooela, 188 

 Dendl-onotus, 299 

 Dentaliidse, 291 

 Dentalium, 291 

 Desmarella, 35 

 Desmosooleoidae, 215 

 Desmoscolex, 215 

 Desmosticha, 164 

 DesmoteuthidsB, 375 

 Deamoteuthis, 375 

 Deutoplasm, x 

 Devil-fish, 371 

 Dextral, 304 

 Diadema, 167 

 DiadematidBB, 167 

 Diasterina, 169 

 DiastoporidBB, 240 

 Dihranchiata, 369 

 Dioeras, 272 

 Diotyophora, 203 

 Dicyema, 196 

 Dicyemennea, 196 

 DicyemidsB, 196 



Dioystidea, 25 



Differences between plants 



animals, iii 

 Difflu^ia, 6 

 Digestion, xix 

 Diglena, 205 

 Dimastiga, 32 

 Dimorphism, xlix 

 Dimyaria, 257 

 Dinobryon, 37 

 Diopatra, 225 

 DiphysB, 105 

 Diphyes, 105 

 Diphyidse, 105 

 Diploblastio, xi 

 Diploria, 119 

 Diplostomidea, 183 

 Diplozoon, 194 

 Diporpa, 195 

 Discida, 10 

 Disoina, 246 

 Disoinidse, 246 

 DiscoideEB, 107 

 Disoophora, 89 

 Discophori, 232 

 Disooporidse, 242 

 Distomese, 194 

 Distomum, 191 

 Dochmius, 211 

 DoliidfE, 352 

 Dollum, 353 

 Donax, 280 

 Dorididse, 301 

 Doridopsidfe, 301 

 Doris, 301 

 Dorooidaris, 166 

 Dorylaimus, 209 

 Dosinia, 277 

 Doto, 299 

 Dracunculus, 209 

 Drainage system, 53 

 Dreissena, 267 

 Drill, 331 

 Duthiersia, 201 

 Dyoistidea, 24 

 Dysidea, 65 

 Dysteria, 46 



Ear-shells, 320 

 Ear-vesicles, xxx 

 Earth-worm, 220 

 Eburua, 333 

 Ecardinia, 246 

 Echinanthus, 171 

 Echinarchnius, 171 

 Eohinaster, 159 

 Echinasteridae, 159 

 Echinidfe, 169 

 Bohinooardium, 174 

 Bohinoorepis, 174 

 Echinocyamus, 171 

 Echinoderes, 206 

 Eohinoidea, 161 

 Echinometra, 169 

 Bchinonemata, 66 

 Echinometridse, 169 

 Echinorhynchus, 213 

 Echinothrix, 167 

 Echinothuridffi, 168 

 Echinus, 170 

 EohiuridsB, 231 

 Eohiuris, 231 

 Ectoderm, x 

 Ectoprocta, 240 

 Eotosarc, 5 

 Echinodermata, 136 

 Edrioaster, 139 

 Edwardsia, 116 

 Egg, ix, xllv 

 Elasipoda, 179 



Blasmopoda, 179 

 and Elastic tissue, xiii 



Eledone, 372 



Eleutheroblastea, 77 



Elpidia, 179 



Elysla, 298 



Elysiella, 298 



ElysiidiE, 298 



Embryology, xliv 



Enohytrajida), 225 



Encope, 172 



Encystment, 3 



Endoblast, x 



Endooephala, 252 



Endoderm, x 



Endoplast, 27 



Endosarc, 5 



Enopla, 216 



Enoplidffi, 209 



Enoploteuthis, 375 



Enoplus, 209 



Ensis, 282 



Entails, 291 



Enteron, xx 



Enteropneusti, 231 



Entoooncha, 295, 343, 347 



Entoproota, 239 



Entosphaerida, 11 



Eolidse, 298 



Eolis, 299 



Eozoon, 4, 21 



Ephyra, 96 

 Epiblast, X 

 Epiderm, x 

 Epiphragm, 304 

 Epipodia, 249 

 Epipyxis, 37 

 Epistylis, 33, 45 

 Epithelial tissues, xii 

 Errantia, 228 

 Escharina, 242 

 Eschariporidse, 242 

 Eulima, 343 

 Euplectella, 68 

 Euryale, 152 

 Eustomata, 36 

 Eucecryphialus, 9 

 Buchone, 226 

 Euolypeastridae, 171 

 Euorate, 241 

 Eucratidae, 241 

 Euoyrtidium, 11 

 Budendrium, 79 

 Euglenidae, 36 

 Euglena, 31, 36 

 Eupleura, 331 

 Euplotes, 27, 47 

 Eupyrgus, 179 

 Bustrongylus, 211 

 Euthyneura, 294 

 Evolution, Iii 

 Exogyra, 260 

 Eyes, xxx 

 Bye-spots, xxx 

 Eye-stones, 288 



Farella, 241 

 Fasciolaria, 331 

 Female pronucleus, xlv 

 Fertilization, xlvi 

 Fibrous-tissue, xiii 

 Fioula, 352 

 Pig-shells, 352 

 Filaria, 209 

 Filaridae, 209 

 Pirola, 356 

 Firoloides, 356 

 Fissurella, 320 

 FisBurellidsB, 320 

 Flagellata, 31 



