822 



INDEX 



495 : Systematic position of the ex- 

 amples, 496 : General organisation, 



496 : Body- wall, 496 : Ccelome, 498 : 

 Alimentary canal, 498 : Vascular 

 system, 498 : Nervous system, 498 : 

 Eyes, 498: Nephridia, 499: Repro- 

 ductive organs, 499 : Sexual dimor- 

 phism, 499 : Development, 500, 501 : 

 Distribution, affinities, &c., 502, 524 



Germarium, 270, 272, 239* 



Germinal bands, of Clepsine, 521 : of 



Peripatus, 612 

 Germinal disc, 798 

 Germinal layers, 23* 

 Germinal spot, 19*, 30 

 Germinal vesicle, 19*, 30 

 Germ-vitellarium, 270 

 Giant Clam, 710 

 Giant fibres, 477 

 Giant nerve-cells, 478 

 Gigantorhynchus, 312, 313, 314, 315 

 Gill-cover, of Astac-us, 541 

 Gills, 35* See Respiration 

 Gizzard, 32 

 Glabella, 605* 

 Glands, 25* 

 Glands, Multicellular, 25* : Unicellular, 



25* : Ducts, 25 : Salivary, 34* 

 Glass-crab, 599 

 Glass-rope sponge, 120, 127 

 Glenodinium, 79 

 Globigerina, 53, 56 

 Glochidium, 693 

 Glomerw, 282 

 Glossiphouia, 516 

 Glossocodon, 154 

 Glow-worms, 645 

 Glycera, 472, 474 

 Glycerid*, 476 

 Gnathobase, 531 



Gnathobdellida, 516*, 517, 518, 522 

 Gnats, 635 



Goblet-shaped bodies, 460 

 Goblet- shaped organs, of Leech, 514 

 Gonads See Reproductive system 

 Gonapophyses, 628* 

 Gonoccele," 783* 

 Gonodactylus, 569 

 Goriodendra, 163* 

 Gonopodaria, 354 

 Gonopore, 298 



Gonotheca, of Obelia, 129*, 130 

 Gonozooids, 202* 

 Gordius, 304, 306, 308 

 Gorgonacea, 195*, 203, 204 

 Gorgonia, 197, 204 

 Granule glands, 270, 271 

 Grapsus, 569 



Graptolithida, 142*, 166, 167 

 Grasshoppers, 619, 633, 636, 645 

 Green gland, of Astacus, 551 

 Gregarina, 82, 83 

 Gregarina blattarum, 82 



Gregarina dujardini, 82 

 Gregarina gigantea, 82, 83 

 Gregarinida, 81* : Characteristic fea- 

 tures, 82, 83 

 Gressoria, 636 

 Gromia, 51, 52, 56 

 Guard, 795* 

 Guard-polypes, 149* 

 Guinea-worm, 305, 312 

 Gula, 637* 



Gullet, 32 See Digestive organs 

 Gunda segmentata, 255, 256, 291, 295 

 Gustatory organ, 39* 

 Gyge, 587 



Gymnoblastea, 143* 

 Gymnolsemata, 347*, 348, 351, 352 

 Gyracti*, 200, 201 

 Gyrocotyle, 262, 263, 287 

 Gyrodactylidce, 259 

 Gyrodactylus, 277, 258 



H 



.ABITS See Ethology 



Hcemadipsa, 516, 522 



Haemal system, 380 



Hsematochrome, 68, 72 



Hit'matococcus, 72, 73 



Haimocoele, of Crustacea, 526, 593* : 

 Peripatus, 624 : Insecta, 640 



Hsemocyanin, 555 



Haemoflagellata, 72 



Haemoglobin, 30, 36 



Hwmopsis vorax, 522 



Haemosporidea, 81* : Characteristic fea- 

 tures, 85, 86 



Halicystus, 177 



Haliotidce, 733 



Haliotis, 737, 744, 745 



Halistemma, 159, 161, 162, 168 



Halistemma tergestinum, 160, 163 



Halteres, 640 



ffamingia, 500 



ffarted, 195, 202, 197 



Harvest-men, 661, 665 



Hastigerina, 54, 55 



Haversian canals, 27*, 28 



Head, 43* 



Head-germs, 522* 



Head-kidneys, 452 



Head-lobes, of Astacut, 558: of Fasciofa, 

 240* 



Heart, 36* 



Heart See Vascular system 



Heart-urchins, 412*, 417, 422 



Hectocotylisation, 760, 792 



Heliozoa, 48* : General structure, 56, 

 57, 58 : Colonies, 59 : Skeleton, 58, 

 59 : Reproduction, 59 : Conjugation, 

 59,60 



ffeliopora, 195, 203, 208, 209, 210 



