554 



COMPARATIVE ANATOMY 



Gregarina, 8 

 Gromia, 4 



,, oviformis, 5 

 Gryllidce, 439 

 Gryllotalpa, 439 

 Gunda segtnentata, 133 

 Gyge, 296 



Gynoecophorus Iwematdbius, 134 

 Gyrator, 157 

 Gyrodactylus, 134 



H&MATOPINUS, 440 

 Hcemopis aulastomum, 181 

 Halacaridce, 510 

 Halesus, 441 

 Halichondrina, 61 

 ffaliphysema, 58 

 Haliscara, 61 



,, lobularis, section, 65 

 Halistemma, 70 

 Holla, 182 

 Halobates, 440 

 Halocypris, 290 

 I Halycryptus, 183 

 Halteres, 473 

 Haplosyllis, 182 



,, spongicola, 266 



Harpes, j.15 

 Heliconiidoe, 442 

 Heliozoa, 6 

 Hemerobius, 441 

 Hemiaspidce, 416 

 Hemiraetabole, 491 

 Hemiptera, 440 ; mouth parts, 451 

 Henicops, 438 

 Hermaphroditism, 24 



protandrous, 65 



Hermellidce, 182 

 Hermione, 182 

 Hesionidce, 182 

 Hesperidce, 442 

 Heterogeny, 171 

 Heteromera, 441 

 Heteroptera, 440 

 Heterotricha, 9 

 Hexacorallia, 71 

 Hexactinellidce, 61 

 Hexapoda, 438 

 Himantarium, 438 

 Hippidce, 299 

 Hippolyte, 357 

 Hippopodius, 70 



Hirudinea, 180 ; eye, 232 ; section, 249 

 Hirudo medicinalis, 181 ; genital organs, 



258 ; intestinal canal, 206 ; nervous 



system, 218. 219, 220 

 Histriobdella, 181 

 Holometabole, 491 

 Holopneustic tracheal system, 480 

 Holotricha, 9 

 Homarus, 298 

 Homoptera, 441 

 Honey-bee, see Apis 



Honey-stomach, 461 

 Hoplonemertina, 178 

 Hormiphera, 72 



,, plumosa, 79 



Hornera, 184 

 ffyalonema, 61 

 Hyaloplasm, 26, 49 

 Hyalosphenia, 4 



lata, 3 

 Hydatina, 185 



,, senta, 245 



Hydra, 67 ; neuromuscular cells, 46 

 ffydrachnidce, 510 

 Hydridce, 67 

 Hydracorallia, 67 

 Hydrocores, 440 

 Hydrodoma, 510 

 Hydromedusce, 67 

 ffydrometra, 440 

 Hydrophilidce, 442 

 Hydrophilus, embryos, 455 ; development, 



494, 495, 497, 498 

 Hydropolyp, 66 ; diagram, 73 

 Hydropsyche, 441 

 ffydrozoa, 66 

 Hydrula, 66 

 Hymenocaris, 293 

 Hymenoptera, 422 ; mouth parts of larva, 



449 



Hyperina, 296 

 Hypotricha, 9 



IAPIX, 439 \ ^ 



Ibla, 292 



Ichneumonidce, 44% 



Ichthydium, 186 



Idotheidce, 295 



Ilia, 299 



Imago, 490 



Imperforata, 4 



Inachus, 299 



Infusoria, 9 



Ingluvies, 461 



Insecta, 438 



Interarticular (intersegmental) membranes, 



300 



Interradia, 74 

 Interseptal spaces, 88 

 Intima, 336 

 Intraseptal spaces, 88 

 lolanthe acanthronotus, 2d antennae, 310 

 Isis, 70 



Isopoda, 294 ; circulatory system, 360 

 Isospore, 20 



Isopteryx apicalis, chordotonal organ, 473 

 Isotoma, 439 

 lulidce, 438 



lulus Sabulosus, sensory organs, 474 

 Ixodidce, 510 



KARYOKINESIS, 35 

 Kentrogonidce, 292 

 Kentrogon larva 387, 386 



