INDEX 



821 



Fever, parasite of, cfuartan, 86 : Tertian, 



86 

 Fibres, nerve, 29*, 30 

 Fibro-oartilage, 26*, 27 

 Filaria bancrofti, 312 

 Fi/aria medinensix, 305, 312 

 Filariasis, 312 



Filibranohia. 695*, 697, 698, 711, 712 

 Fimbrias, of Fresh-water Mussels, 681 

 Fire-flies, 645 

 Fission, 14, 40", 46, 60, 59, 65, 69, 73, 74, 



78, 79, 81, 90, 101 

 Fissurella, 737, 745 

 Five- chambered organ, 409* 

 Fixed cheek of Trilobites, 605* 

 Flahdlum, 205, 206, 207 

 Flagella of Copepods, 565* 

 Flagellata, 69* : Cell body, 70, 71 . 

 Flagella, 70, 71 : Modes of nutrition, 

 72 : Skeleton, 73 : Colonies, 73 : 

 Asexual multiplication, 74 : Sexual 

 reproduction, 75 

 Flagellate canals, of Sponges, 107, 108, 



109*, 118 

 Flagellate cells, 108, 109 

 Flagellula, 50, 51*, 56, 58, 60, 63, 65, 66, 



69, 78, 79 

 Flagellum, 24*, 68, 69 

 Flagellum, of Astaciis, 544 

 Flame-cells, 238, 269 

 Flat- worms— See Platyhelminthes 

 Fleas, 635, 640, 651 

 Flies, 526, 619 

 Float, 159*, 160 

 Floscularia, 328, 330, 331 

 Fluatra, 347 

 FoUiculina, 94 

 Food-yolk, 30 

 Food vacuole, of Ac/iiiophrt/s, 57 : Ptim- 



mifcium, 90* 

 Foot, of Anodonta, 681 . Pelecypoda, 

 701 : Amphineura, 713 : Triton, 724 : 

 Gastropods, 738, 739: S<-pia, 760: 

 NauHlnti, 777 : Cephalopoda, 791 

 Foot-gland, 354 



Foraminifera, 48* : General structure, 50, 

 51 . Skeleton, 61, 52, 53 : Protoplasjn, 

 54 : Dimorphism, 55, 56* : Repro- 

 duction, 56 : Distribution, .56 

 Formica ruta, 652 

 Fossettea, 591* 

 Fossils, 7* 

 Fossvla, 210 

 Fredericdla, 348 

 Fresh-water Crayfish, 539 

 Fresh- water Mussel — See Anodonta 

 Fresh-water Sponges, 126 

 Fresh- water Worms, 439 

 Frilillaria, 233 

 Frondicidaria, 53 

 Frontal suture, 605* 

 Fulcrum (of Rotifera), 325 

 Fungia, 205 



Funic, 343* 

 Funiculus, 343, 351 

 Funnel, 792 

 Funnel folds, 792 



Ga 



(J 



ALE A, 622 



Oalathea, 569 



Oaleodes, 683, 661 



Galls, 647 



Gall-flies, 636, 647 



Gall-insects, 647 



Gametes, of Flagellata, 74, 75* : Sporozoa, 



80, 81 

 Gametocytes, 80, 86 

 Oammartis, 684, 568, 583 

 Gamobium, 140*, 176 

 Gamogenesis, 21* 

 Ganglia, 38, 242 

 Gastral cortex, 108, 111*, 119 

 Gastric filaments, of Aurelia, 172* 

 Gastric mill, 593 : of Astacvx, 549 

 Gastric ostium, 110* 

 (Gastric ridges, of 4 we^f'a, 173* : pouches, 



170* 

 Gastrolith, 549* 

 Gaatrophilus equi, 634 

 Gastropoda, 680, 721*: Example, 721. 

 Distinctive characters and classifica- 

 tion, 732: Systematic position of e\- 

 ample, 734 : (ieneral organisation, 735 : 

 External features, symmetrj', &c. , 735 : 

 Shell, 737 : Foot, 738, 739 : Head, 

 740: Mantle, 740: Respiratory organs, 

 742 : Osphradium, 744 : Digestive 

 organs, 744 : Heart, 744 : Nervous 

 system, 745 : Organs of special sense, 

 746 : Nephridia, 747 : Reproduction, 

 748 : Development, 749, 751, 762, 753, 

 754, 755 : Ethology and distribution, 

 755 : Relationships, 756 : Appendix, 

 756 

 (lastropores, of Millepora, 156* 

 Gastrotricha, 323, 335*, 336 

 Gastrozooids, 163, 202 

 Gastrula, 23* 

 Gastrulation, 22, 23* 

 Gdasimus, 591, 602 

 Gemmules, 112, 121* 

 Gente, 621* 

 Generic, 1* 



Genital cloaca, 248* : rachis, 385, 430 : 

 stolon, 385, 430 : plates, 396, 397 : 

 bursse, 430 : operculum, 655* 

 Genital system — See Reproductive system 

 Genus, 1* 



Geological distribution — See Distribu- 

 tion, geological 

 Geoplanidce, 253 



Gephyrea, 439, 491* ; Example, 492 : Dis- 

 tinctive characters and classification, 



