604 



INDEX. 



Halcyonellea, 567. 

 Halecimn. 132. 

 Halia, 396. 

 Halicliondiia, 96. 

 Halichondrina, 95. 

 Halicornaria, 133. 

 Haliclystus, 117, 164. 

 Halicryptus, 541. 

 Halicyathus, 164. 

 Halionmia, 23. 

 Haliotis, 360, 361, 362, 



367, 376, 386, 394. 

 Halipbysema, 13. 

 Halipteris, 181. 

 Halisavca, 93 

 Halisceptrum, 181. 

 Halisiphonia, 132. 

 Halistemma, 153. 

 Halla, 480. 

 Halme, 98. 

 Halocordyle, 130. 

 Halodora, 479. 

 Halomitra, 196. 

 Halopsis, 134. 

 Halopsyche, 408. 

 Halopyramis, 149. 

 Haloseris, 196. 

 Halosydna, 478. 

 Halteria, 49. 

 Halteridium, 63. 



Hamacantha, 96. 



Hamingia, 531, 533. 



Hapalia, 207. 



Haplobranchus, 491. 



Haplodiscus, 219. 



Haplophyllia, 194. 



Haplophysae, 141. 



Haplorhiza, 168. 



Harniothoe, 478. 



Harpa, 397. 



Harp-shell, 397. 



Hartea, 178. 



Hastigerina, 14. 



Haswellia, 566. 



Hauerina, 13. 



Head of Annelida, 447. 



Hebella, 132. 



Hectocotylised ami, 440. 



Hectocotylus, 421. 



Hedge-snail, 416. 



Hednoblast, 120, 126. 



Hedruris. 289. 



Hekaterobranchus, 485. 



Helcion, 394. 



Heliastraea, 196. 



Helicina, 372, 395. 



Heliodrilus, 511. 



Heliolites, 177. 



Heliopora, 179. 



Heliosphaera, 23. 



Heliozoa, 18. 



Helix, 380, 416. 

 Helmet-shell, 400. 

 Hemicardium, 348. 

 Hemidasys, 311. 

 Heraifusus, 397. 

 Hemipodus, 482. 

 Hemistoinuni, 238. 

 Hemitubifex, 508. 

 Heniphillia, 416. 

 Henlea, 509. 

 Henneguya, 68. 

 Hermadion, 478. 

 Hermaea, 413. 

 Hermaphrodite, 70 ; 



duct, 378. 

 Hermella, 492. 

 Hermelliformia, 491. 

 Hermione, 459, 478. 

 Hermodiee. 480. 

 Hero, 412.' 

 Herophila, 182. 

 Herpetomonas, 30. 

 Herpobdella, 526. 

 Hcrpolitha, 196. 

 Hertwigia, 92. 

 Hesione, 477. 

 Hesperodrihis.495, 508. 

 Heteractis, 188. 

 Heterakis, 284. 

 Heterochaeta, 508. 

 Heterocheilus, 284. 

 Heterocoela, 90. 

 Heterocordyle, 130. 

 Heterocotylea, 233. 

 Heterodactyla, 187. 

 Heterodera Schachtii, 



290. 



Heterodoris, 374, 412. 

 Heterogamy Trematoda, 



232. 



Heteromastigoda, 31. 

 Heteromeyeuia, 96. 

 Heteromita, 31. 

 Heteromonadina, 30. 

 Heteronema, 31, 98. 

 Heteronemertini, 272. 

 Heteronereis, 467. 

 Heteropegnia, 90. 

 Heterophenacia, 485. 

 Heterophrys, 19. 

 Heterophvmia, 94. 

 Heteropia, 90. 

 Heteroplon, 133. 

 Heteropoda, 397, 400. 

 Heteropsammia, 196. 

 Heterorraphidae, 96. 

 Heterostegina, 15. 

 Heterostephanus, 130. 

 Heterosyllid, 468. 

 Heteroterebella, 485. 

 Heteroxenia, 178. 



Hexabranchus, 412. 

 Hexaceratina, 93. 

 Hexacotyle, 236. 

 Hexact, 91. 

 Hexactinella, 93. 

 Hexactinellida, 90. 

 Hexactinia, 183. 

 Hexactiniae, 186. 

 Hexalaspis, 23. 

 Hexamitus, 31. 

 Hexarthra, 310. 

 Hexaster, 92. 

 Hexasterophora, 92. 

 Hexastylus, 23. 

 Hibernauula, 556. 

 Himantostoma, 168. 

 Hinge, 324. 

 Hinnites, 347. 

 Hippoerene, 131. 

 Hipponoa, 480. 

 Hipponyx, 398. 

 Hippo] lodins. 150. 

 Hippopus, 348. 

 Hippospongia, 98. 

 Hippothoa, 566. 

 Hippuraria, 567. 

 Hircinia, 98. 

 Hirmidium, 33. 

 Hirudinea, 512. 

 Hirudo. 513, 516, 518, 



519, 526. 

 Histiopsis, 445. 

 Histioteuthis, 420, 426, 



445. 



Histriobdella, 455. 

 Histriodrilus, 455, 457. 

 Holascus, 92. 

 Holaxonia, 182. 



Holocladina, 15. 



Holophrya, 45. 



Holorhynchocoelomia, 

 271. 



Holosticha, 49. 



Holostomatous, 361. 



Holostomidae, 232. 



Holostomum, 238 ; ser- 

 pens, 226. 



Holozoic, 2. 



Homalogaster, 238. 



Homalogyra, 356, 398. 



Homocoela, 89. 



Homorraphidae, 95. 



Hood of Nautilus, 421. 



Hoplitophrya, 47. 



Hoplochalina, 96. 



Hoplonemertini, 266. 



Hoplophora, 94. 



Hormathia, 187. 



Hormiphora, 207. 



Hormogaster, 506, 511. 



Hornera, 566. 



