SUBJECTS INDEX 



469 



Cornacuspongia, 22. 

 Cornularia, 80, 82. 

 Corymorpha, 50, 73. 

 Corynidffl, 125. 

 Cotylorhiza, 108, 112. 



borbouica, 112. 



tuberculata, 108. 

 Crinoidea, 443. 



mesenchvma of, 400. 

 Criodrilus, 28^1, 281, 287. 291, 296. 



monostylus, 301. 



pardalis, 301. 

 Crystallodes, 64. 

 Ctenaria, 154. 

 Ctenophora, 136. 

 Ctenoplana, 157, 177. 

 Cucullauus, 234, 23-5, 238, 242. 

 Cucumaria doliolum, larva of, 419. 



meseuchyma of, 397. 



planci, 429, 432. 



pupal stage of, 427. 

 CuninisB, 49, 53, 58. 

 Cunoctantba, 53. 

 Cyauea, 106, 112. 



arctica, 106. 



capillata. 112. 

 CyaueidsB, 120. 

 Cydippidffi, 151. 

 Cysticercus (TEeniadas), 195. 



pisiformis (Fig. 96), 196. 

 Cystida3, 458, 459. 



Darwinia, 175. 



Delamiuation, gastrulation by, 8. 



Dendrocoelidffi, 159, 169. 



Dendrocoelum lacteum, 169, 170. 



Desmacidon, 24. 



Desmophyidffl, 71. 



Desor's type of development (Ne- 



mertini), 225. 

 Dicyema, 209. 

 Dicyemella, 209. 

 Dicyemennea, 209. 

 Dicyemidffl, 206, 209. 



relationships of, 215. 

 Dicyemina, 209. 

 Dicyemopsis, 209. 

 Dinophilus, 215, 313. 



apatris (gyrociliatus), 314. 



giiias, 314. 



relationships of, 314. 



tseniatus, 314 



vorticoides, 314. 

 Diphyidaj, 68, 71. 

 Diphyopsis, 71. 

 Diplozoon, 188, 189. 

 Diptera, sexual cells of, 12. 



Discocelis, 161, 163. 

 Discomedusse, 103, 120. 

 Disconanthae, 65. 

 Disconula, 65. 

 Discophora, 102, 103. 

 Distomidffi, 178, 180. 

 Distomum cygnoides, 187. 



cylindraceum, 180. 



hepaticum, 180, 181, 185, 187. 



raacrostomum, 185. 



mentulatuin, 180. 



ovocaudatum, 185, 



tereticolle, 178. 

 Doclimius duodenalis, 239. 



trigonocephalus, 239. 

 Dracunculus, 243. 



Echinarachnius, 403, 439. 

 Echinaster, larval appendages of, 



422. 

 Echinobothridse, 199. 

 Echinocardium, cleavage in, 398. 

 Echinoeoccus, 197. 

 Echinocyamus, 440. 

 Echinodermata, 392. 



regeneration and division in, 

 456. 



relationships of, 459, 460. 

 Echinoidea, 398, 424, 438. 

 Echinorhynchus angustatus, 250, 

 251. 



gigas, 249, 250, 251, 258. 



pol.ymorphus, 252, 255. 



proteus, 250, 251. 

 Echinothuridse, 458. 

 Echinus, 424. 



microtuberculatus, cleavage 

 in, 398. 

 Echiuridffl, 304. 



compared to the Sipunculidae, 

 365. 

 Echiurus, 304, 306. 

 Ectocarp meduste, 124. 

 Ectoderm, 3, 4. 

 Edwardsia, 92. 

 Edwardsidas, 93. 



Embolic gastrula, see Gastrula, em- 

 bolic. 

 Enchvtrseoides, 294. 

 Enteropneusta, 373. 

 Entocarp medusas, 124. 

 Entoderm, 3, 4. 

 Eosphora, 256. 

 Epenthesis, 49. 

 Ephydatia, 25. 

 Ephyra, 104, 113, 114, 119. 



pedunculata, 118. 



