554 



COMPARATIVE ANATOMY 



Greyarina, 8 

 Gromia, 4 



,, oviformis, 5 

 Gryllidce, 439 

 Gryllotalpa, 439 

 G unda seymentata, 133 

 Gyge, 296 



Gh/ncecophorus hcematobius, 134 

 Gyrator, 157 

 Gyrodactylus, 134 



H+E3TATOPINUS, 440 

 Hcemopis aulastomum, 181 

 Halacaridce, 510 

 Hales us, 441 

 Halichondrina, 61 

 Haliphysema, 58 

 Haliscara, 61 



,, lobularis, section, 65 

 Halistemma, 70 

 Halla, 182 

 Hal abates, 440 

 Holocypris, 290 

 Halycryptus, 183 

 Halteres, 473 

 Haplosyllis, 1S2 



,, spongicola, 266 



Harpes, 415 

 Heliconiidce, 442 

 Heliozoa, 6 

 Hemerobius, 441 

 Hcmiasiridce, 416 

 Hemimetabole, 491 

 Hcmiptem, 440 ; mouth parts, 451 

 Henicops, 438 

 Hermapliroditism, 24 



,, protandrous, 65 



Hermellidce, 182 

 Hermione, 182 

 Hesionidce, 182 

 Hesperidce,, 44% 

 Heterogeny, 171 

 Heteromera, 441 

 Heteroptera, 440 

 Heterolricha, 9 

 Hexacorallia, 71 

 Hexactinellidce, 61 

 Hexapoda, 438 

 Himantarium, 438 

 Hipjridce, 299 

 Hippolyte, 357 

 Hippopodius, 70 



Hirudinea, ISO ; eye, 232 ; section, 249 

 Hirudo medicinalis, 181 ; genital organs, 



258 ; intestinal canal, 206 ; nervous 



system, 218. 219, 220 

 Histriobdella, 'iSl 

 Holometabole, 491 

 Holopueustic traclieal system, 480 

 Holotricha, 9 

 Homarus, 298 

 Homoptera, 441 

 Honey-bee, see Apis 



Honey-stomach, 461 

 Hoplonemertina, 178 

 Hormiphera, 72 



,, pluinosa, 79 



Hornera, 184 

 Hi/alonema, 61 

 Hyaloplasm, 26, 49 

 Hyalosplienia, 4 



,, lata, 3 



Hydatina, 185 



,, senta, 245 



Hydra, 67 ; ueuromuscular cells, 46 

 HydrachnidcK, 510 

 Hydridce, 67 

 Hydracorallia, 67 

 Hydrocores, 440 

 Hydrodoma, 510 

 Hydromedusce, 67 

 Hydrometra, 440 

 Hydrophilidie, 44% 

 Hydropliilus, embryos, 455 ; development, 



494, 495, 497, 498 

 Hydropolyp, 66 ; diagram, 73 

 Hydropsyche, 441 

 Hydrozoa, 66 

 Hydrula, 66 

 Hymenocaris, 293 

 Hymenoptera, 4%%', mouth parts of larva, 



449 



Hyperina, 296 

 Hypotriclut, 9 



lAPIX, 439 



Jbla, 292 



Ichneumonidce, 44% 



Ichthydium, 1S6 



Idotheidce, 295 



Ilia, 299 



Imago, 490 



Jmperforata, 4 



Inachus, 299 



Infusoria, 9 



lugluvies, 461 



Insecta, 438 



Interarticular (iutersegmeutal) membranes, 



300 



Interradia, 74 

 Interseptal spaces, 88 

 Intima, 336 

 Intraseptal spaces, 88 

 lolanthe acanthronotus, 2d antennte, 310 

 Isis, 70 



Isopoda, 294 ; circulatory system, 360 

 Isospore, 20 



Isopteryx apicalis, chordotonal organ, 473 

 Isotoma, 439 

 lulidce, 43S 



lulus Sabulosus, sensory organs, 474 

 Ixodidce, 510 



KARYOKINESIS, 35 

 Kentrogonidce, 292 

 Kentroyon larva 387, 386 





