604 



INDEX. 



Halcyonellea, 567. 

 Halecimn, 132. 

 Halia, 396. 

 Halichondria, 96. 

 Halichondrina, 95. 

 Halicornaria, 133, 

 Haliclystus, 117, 164. 

 Halicryptus, 541. 

 Halicyathus, 164. 

 Haliomma, 23. 

 Haliotis, 360, 361, 362, 



367, 376, 386, 394. 

 Haliphysema, 13. 

 Halipteris, 181. 

 Halisarca, 93 

 Halisceptrum, 181. 

 Halisiphonia, 132. 

 Halistemma, 153. 

 Halla, 480. 

 Halme, 98. 

 Halocordyle, 130. 

 Halodora, 479. 

 Halomitra, 196. 

 Halopsis, 134. 

 Halopsyclie, 408. 

 Halopyrajnis, 149. 

 Haloseris, 196. 

 Halosydna, 478. 

 Halteria, 49. 

 Halteridium, 63. 

 Hamacantha, 96. 

 Hamingia, 531, 533. 

 Hapalia, 207. 

 Haplobranchus, 491. 

 Haplodiscus, 219. 

 Haplophyllia, 194. 

 Haploj)hysae, 141. 

 Haplorhiza, 168. 

 Harniothoe, 478. 

 Harpa, 397. 

 Harp-shell, 397. 

 Hartea, 178. 

 Hastigerina, 14. 

 Haswellia, 566. 

 Haueriua, 13. 

 Head of Annelida, 447. 

 Hebella, 132. 

 Hectocotylised arm, 440. 

 Hectocotylus, 421. 

 Hedge-snail, 416. 

 Hedrioblast, 120, 126. 

 Hedruris, 289. 

 Hekaterobranclms, 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. 

 Hemifusus, 397. 

 Hemipodus, 482. 

 Hemistomum, 238. 

 Hemitubifex, 508. 

 Hemphillia, 416. 

 Henlea, 509. 

 Henneguya, 68. 

 Hernuulion, 478. 

 Hernfcea, 413. 

 Hermaphrodite, 70 ; 



duct, 378. 

 Hermella, 492. 

 Hermelliformia, 491. 

 Hemiione, 459, 478. 

 Hermodice, 480. 

 Hero, 412. 

 Herophila, 182. 

 Herpetomonas, 30. 

 Herpobdella, 526. 

 Herpolitha, 196. 

 Hertwigia, 92. 

 Hesione, 477. 

 Hesperodrilus,495, 508. 

 Heteractis, 188. 

 Heterakis, 284. 

 Heterochaeta, 508. 

 Heterocheilus, 284. 

 Heterocoela, 90. 

 Heterocordyle, 130. 

 Heterocotylea, 233. 

 Heterodactyla, 187. 

 Heterodera Schaclitii, 



290. 



Heterodoris, 374, 412. 

 Heterogamy Trematoda, ! 



232. 



Heteromastigoda, 31. 

 Heteromeyenia, 96. 

 Heteromita, 31. 

 Heteromonadina, 30. 

 Heteronema, 31, 98. 

 Heteronemertini, 272. 

 Heteronereis, 467. 

 Heteropegma, 90. 

 Heterophenacia, 485. 

 Heterophrys, 19. 

 Heterophymia, 94. 

 Heteropia, 90. 

 Heteroplon, 133. 

 Heteropoda, 397, 400. 

 Heteropsammia, 196. 

 Heterorraphidae, 96. 

 Heterostegina, 15. 

 Heterostephanns, 130. 

 Heterosyllid, 468. 

 Heteroterebella, 485. 

 Heteroxenia, 178. 



Hexabraiichus, 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. 

 Hibernacula, 556. 

 Himantostonia, 168. 

 Hinge, 324. 

 Hinnites, 347. 

 Hippocrene, 131. 

 Hipponoa, 480. 

 Hipponyx, 398. 

 Hippopodius, 150. 

 Hippopus, 348. 

 Hippospongia, 98. 

 Hippothoa, 566. 

 Hijijmraria, 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. 

 Ho})lonemertini, 266. 

 Hoplophora, 94. 

 Hormathia, 187. 

 Hormiphora, 207. 

 Hormogaster, 506, 511. 

 Hornera, 566. 



