IXDEX. 



605 



Dactylocalyx, 221. 

 Dactylozooids, 246. 

 Dapbuia. I--. 

 Darwin, 145. 



Dasychira, 583. 

 Dasypoda, 597. 

 Death-head moth, 584. 

 Death-watch, 589. 

 Decapoda. 475. 

 Deep sea Fauna, 163. 

 De Geer, 133. 

 Degradation, 158. 

 Delamination, 114. 

 Demodex, 492. 

 Dendrochirotre, 299. 

 Dendroccela, 311, 314. 

 Dendrocoelum, 315. 

 Dendrometridae, 583. 

 Dendrophyllia, 233. 

 Dentine, 41. 

 Dermal branchiae. 277. 

 Dermanyssus, 495. 

 Dermatobia, 576. 

 Dermatodectes, 492. 

 Dermatophili, 492 

 Dermatoptera, 556 

 Dermestes, 590 

 Derostomea, 312. 

 Derostomum, 313. 

 Descent, evidence in fa- 

 vour of theory of. 151. 

 Desmoscolecidse, 357. 

 Desor. Type of, 341 

 Deutoplasm, 111. 

 Development, 107. 

 Diaptomus, 435. 

 Diastylis, 470. 

 Difflugia, 186. 

 Digenous reproduction, 

 97. 



Digging-wasps, 596. 

 Digonopora, 316. 



Diloba, 583. 



Dimorphism, facts of, in 

 favour of theory of 

 descent 152, sexual 

 101, 153. 



Dinoceras, 173. 



DinosauridfB, 175. 



Dioscious, 100. 



Diopatra, 374, 379. 



Diphyes, 246, 250. 



Diplophysa, 250. 



Diplozoon, 324. 



Dipneumones, 504. 



Diporpa, 325. 



Diptera, 572. 



Direct development, 120. 



Directive body, 109. 



Discoidal segmentation, 

 112. 



Discoidere, 250. 



Discomedusa, 260, 261. 



Discophora (Coelente- 

 rate), 259, 394. 



Discophora, see Hiru- 

 dinea. 



Dissepimenta of Actin- 

 ozoa. 228. 



Dissepiments of Anne- 

 lida, 364. 



Distomea, 318, 321. 



Distomum, 317, 322. 



Distomum cygnoides, 

 321. 



Distomum hrematobium, 

 321. 



Dochmius, 350, 352. 



Dolichopus, 576. 



Dolomedcs, 502, 504. 



Doritis, 585. 



Dorsibranchiata, 370, 379 



Dorylaimus, 357. 



Dracuuculus. 356. 



Dragon-fly, 562. 



Dromia, 4*78. 



Drone, 598. 



Ductus Botalli, 66, 



Dung-flies, 576. 



Duodenum, 57. 



Dynamena, 242. 



Dysdera, 499. 



Dytiscus, 590. 



Earwigs, 556. 



Ecdysis of Arthropoda, 



407. 



Echinaster, 273, 293. 

 Echincibothrium, 338, 



326. 



Echiniscus, 497. 

 Echinococcifer, 335. 

 Echinococcus, 336, 331, 



333. 



Echinocucumis, 297. 

 Echinocyamus, 297. 

 Echinoderidse, 404. 

 Echinodermata, 266. 

 Echiuoidea, 294. 

 Echinometra, 295, 296. 

 Echinorhynchus, 3G2. 

 Echinus, 29(5. 

 Echiuroidea, 389. 

 Echiurus. 387, 392. 

 Eciton. 596. 

 Ectoderm, 213, 49, 11G. 

 Ectolecithal, 112. 

 Ectolithia, 189. 

 Ectoplasm, 54. 

 Eisvogel, 585. 

 Elastic fibres, 39. 

 Elater, 589. 



Eleutheroblastete, 240. 

 Ellipsocephalus, 484. 

 Elytron, 369, 528. 

 Embolic invagination, 



114. 

 Embryology in relation 



to descent theory, 157. 

 Embryonicdevelopment, 



119. 



EmpidcB, 576. 

 Enchelidium, 357. 

 Enchytraeus, 384. 

 Encrinus, 289. 

 Endoderm, 116. 49, 213. 

 Endogenous cell forma* 



tion, 30, 31. 

 Endomychidai, 588. 

 Endoplasm, 54. 

 End-organs, 47. 

 Endoskeleton, 79. 

 Endothelium, 34. 

 Enopla, 339, 342. 

 Enoplus, 357. 

 Enteroccele, 116. 

 Euteroplea, 404. 

 Enteropneusta, 299. 

 Eutocoucha, 299. 

 Entolithia, 189. 

 Entomophaga, 594. 

 Entomostraca, 416. 

 Entoniscus. 459, 460. 

 Entozoa, 308. 

 Epcira, 505. 

 Ephemera, 531, 562. 

 Ephemeridas. 561. 

 Ephialtes, 595. 

 Ephippigera, 558. 

 Ephryopsis, 261. 

 Ephyra, 125, 253, 251. 

 Ephyra-Medusie. 259. 

 Epiblast, 114. 

 Epibole, 115. 

 Epimerum, 525. 

 Epipharynx, 524. 

 Episternum, 525. 

 Epistom of Decapoda, 



476. 



Epistylis, 205. 

 Epithelium, 34. 

 Equitidte. 585. 

 Equus,phy logeny of , 1 72. 

 Erebia, 585. 

 Erichthus, 472. 

 Eristalis, 576. 

 Errantia, 378. 

 Erythrreus, 495. 

 Eschscholtzia, 266. 

 Estheria, 419. 

 Eucephala, 577. 

 Eucharis, 266. 

 Euchlanis, 404. 



