Index. 



441 



Hirudo, 199, 200, 201, 203, 204. 

 His, 14, 15. 

 Hislopea, 226. 

 Hislopeidae, 229. 

 Histioderma, 47, 224. 

 Histology, 12. 

 Histriobdella, 263. 

 Hoeven, Van der, 303. 

 Hoffiiiann, 144. 

 Holocystis, 115. 

 Holometabola, 297. 

 Holopedium, 330. 

 Holopus, 129, 130. 

 Holostomata, 308-9. 

 Holothuriada, 120, 148. 

 Holothuria, 153. 

 Holotricha, 66. 

 Holotrocha, 197. 

 Holtenia, 78. 

 Homalocerseus, 150. 

 Homarus, 337, 355. 

 HomodjTiamic, 12. 

 HomcEopoda, 151. 

 Homologous, II. 

 Homomorphic, 85. 

 Homomya, 261. 

 Homonomous, 12. 

 Homoplastic, 10. 

 Homoptera, 399. 

 Homotypical, 12. 

 Hoplophora, 373. 

 Hormiphora, 108. 

 Hoyer, 23. 

 Hubner, 64. 

 Hubrecht, 159. 

 Human parasites, 185. 

 Humphreysia, 257. 

 Huronian formation, 46. 

 Huxley, 72, 126, 155,248. 

 Huxleya, 72. 

 Hyalea, 276. 

 Hyaleidae, 279. 

 Hyalomma, 373. 

 Hyalonema, 78. 

 Hyas (Ox}Th)Ticha), 357. 

 HybocodonidDe, 93. 

 Hybocodon, 93. 

 Hydatids, 168. 

 Hydalina, 197. 

 Hydra, 22, 81. 

 Hydra, parasites of, 70. 

 Hydrachna, 373. 

 Hydractinia, 90, 92. 

 Hydractinidse, 92. 



Hydranth, 85. 

 Hydra tuba, 103. 

 Hydridse, 81. 

 Hydrobius, 395. 

 Hydrocaulus, 84. 

 Hydrocores, 401. 

 Hydrocysts, 99. 

 Hydrodictyon, 4. 

 Hydrogen, 7. 

 Hydroida, 81. 

 Hydrolaridae, 93. 

 Hydrophilus, 416. 

 Hydrophyllium, 98. 

 Hydrophyton, 85. 

 Hydrorhiza, 84. 

 Hydrosoma, 8r. 

 Hydrotheca, 93. 

 Hydrozoa, 11, 46, 81. 

 H3Tnenogorgia, 122. 

 Hymenoptera, 391. 

 Hyperidse, 361. 

 Hypoblast, 37. 

 Hypogaeon, 219. 

 Hyponome, 129. 

 Hypophalli, 183. 

 Hypopharyngeal ganglion, 265. 

 Hypostome, 85, 350. 

 Hypotricha, 66. 

 Hystrichis, 187. 



lanthina, 281, 289, 298, 309. 

 Ibla, 342. 

 Ichneumon, 421. 

 Ichthydium, 166, 218. 

 Ichthyobdella, 202, 204. 

 Idalia, 305. 

 Idoscopic eyes, 27. 

 Idoteidse, 362. 

 Iduna, 72. 

 Idyia, 107-8. 

 Ileoparietal septum, 251. 

 Ilyanthus, 114. 

 Imaginal discs, 347. 

 Imago, 397. 

 Imbricate, 286. 

 Imogene, 160. 

 Imperator, 307. 

 Imperforata, 53. 

 Impregnation, 36. 

 Inachus, 357. 

 Insequitelaa, 375. 

 Incus, 195. 

 India, 44. 

 Indian province, 42. 



