600 



INDEX. 



Damiria, 96. 

 Danilewskya, 62. 

 Danymene, 480. 

 Dart-sac, 379. 

 Danvinella, 93. 

 Dasmosmilia, 195. 

 Dasybranchus, 486. 

 Dasychone, 464, 491. 

 Dasydytes, 311. 

 Dasygorgia, 182. 

 Dasylepis, 478. 

 Dasyphyllia, 195. 

 Dasytricha, 47. 

 Daudebardia. 416. 

 Dead men's fingers, 179. 

 Decapoda, 444. 

 Decollation, 360, 361. 

 Deinodrilus, 506, 511. 

 Deiopea, 207. 

 Delphinula, 395. 

 Deltocyatlms, 194. 

 Demospongiae, 93. 

 Dendoryx, 96. 

 Dendrilla, 93. 

 Dendrobrachia, 191. 

 Dendroclava, 129. 

 Dendrocoelum, 221. 

 Dendroconietes, 52, 54. 

 Dendrocora, 195. 

 Dendrogyra, 195. 

 Deiidromonas, 30. 

 Dendronema, 131. 

 Dendronereis, 479. 

 Dendronotus, 412. 

 Dendrophyllia, 196. 

 Dendropsis, 96. 

 Dendrosoma, 52, 54. 

 Dendrostoma, 539. 

 Dental him, 352. 

 Deodrilus, 510. 

 Depastrella, 164. 

 Depastrum, 164. 

 Dercitns, 94. 

 Dermal ia, 91. 

 Dermal membrane, 76. 

 Dermal pore, 76. 

 Dermatobranchus, 374, 



412. 



Dero, 509. 

 Derostomum, 220. 

 Desma, 84. 

 Desmacella, 96. 

 Desmacidon, 96. 

 Desmacidonidae, 96. 

 Desmalia, 149. 

 Desmogaster, 510. 

 Desmoscolex, 292. 

 Desmonema, 167. 

 Desmophyes, 149. 

 Desmophyllum, 194. 

 Desmopterus, 406. 



Desmosoyplms, 133. 

 Desmothoraca, 19. 

 Detorsion, 385. 

 Deutomerite, 56. 

 Dexiobranchaea, 408. 

 Dextral shell, 360. 

 Diachaea, 17. 

 Diachaeta. 502, 506, 511. 

 Diachoris, 565. 

 Diactine, 82. 

 Diafungia, 196. 

 Dialycli^ie, 491. 

 Dialyneury, 365, 393. 

 Dianema, 17. 

 Diaphoropodon, 13. 

 Diaschiza. 309. 

 Diaseris. 196. 

 Diastopora, 566. 

 Diatomin, 28. 

 Dianlic, 378. 

 Diblasus, 195. 

 Dibranchiata, 444. 

 Diceras, 325, 

 Dichocoetiia, 196. 

 Dichogaster, 510. 

 Dichoraea, 197. 

 Dicodonium, 131. 

 Dicoryne, 130. 

 Dicotylns. 221. 

 Dicranocanna, 134. 

 Dictydiacthaliimi, 17. 

 Dictydium, 17. 

 Dictyocalyx, 92. 

 Dictyocha, 35. 

 Dictyocladium, 133. 

 Dictyocylindrus, 96. 

 Dictyocysta, 49. 

 Dictyonalia, 92. 

 Dictyonina 93. 

 Dictyostelinm, 18. 

 Dicyemidae, 240. 

 Dicymba, 152. 

 Didinium, 46 

 Didymiurn, 17. 

 Didymozoon, 240. 

 Difflugia, 11, 12. 

 Digaster, 510. 

 Digenea, 237. 

 Digenetic, 228. 

 Diglena, 309. 

 Dileptns, 46. 

 Dimorpha, 30. 

 Dimorphina, 14. 

 Dimoriihism, 7, 9. 

 Dimorphous, 10. 

 Dimyaria, 326, 330. 

 Dimyidae, 347. 

 Dinema, 131. 

 Dinifera, 34. 

 Dinobryon, 30. 

 Dinocharis, 309. 



Dinoflagellata, 33. 

 Dinophilus. 456, 457. 

 Dinophrya, 45. 

 Dinophysis, 35. 

 Dioecious, 70. 

 Diopatra, 481. 

 Diophrys, 49. 

 Diotocardia, 393. 

 Dipetasus, 135. 

 Diphasia, 133. 

 Diphyes, 149. 

 Diphyllobothrium, 256. 

 Diphyo]sis, 149. 

 Diplax, 309. 

 Diplectanum, 236. 

 Dipleurosoma, 134. 

 Diplobothrium, 236. 

 Diplocardia, 511. 

 Diplocheilus, 133. 

 Diploconus, 23. 

 Diplocotyle 256. 

 Diplocyatlms, 132. 

 Dij)locystis, 58. 

 Diplodal, 78. 

 Diplodinium, 49. 

 Diplodiscus, 2-29, 238. 

 Diplodonta, 347. 

 Diplois, 309. 

 Diplomita, 31. 

 Diplommatina, 398. 

 Diplonchus, 222. 

 Diplophysa, 149. 

 Diploria, 195. 

 Diplostomum, 238. 

 ! Diplozoon, 226, 235. 

 Diplura, 130. 

 Diporcchaeta, 510. 

 Diporpa, 235. 

 Diporula, 566. 

 Di[mrena, 131. 

 Dipylidium, 248, 261. 

 Discalia, 143. 

 Disconalia, 143. 

 Discina, 578, 583, 584, 



585 



Discinisca. 585 

 Discocelis. 222. 

 Discocyathus, 194. 

 Discodermia, 94. 

 Discohexact, 92. 

 Discoidea, 23 

 Discomedusae, 166. 

 Disconanthae, 141. 

 Disconectae, 141. 

 Disconula, 141, 143. 

 Discophrya, 47. 

 Discopus, 304. 

 Discorbina. 14. 

 Discosorna, 186. 

 Dislocabe, 153. 

 Dissepiments, 193. 



