INDEX 



821 



Fever, parasite of, quartan, 86 : Tertian; 

 86 



Fibres, nerve, 29*, 30 



Fibro-cartilage. 26*, 27 



Filaria bancrofti, 312 



Filaria medinensis, 305, 312 



Filariasis, 312 



Filibranchia, 695*, 697, 698, 711, 712 



Fimbriae, of Fresh-water Mussels, H81 



Fire-flies, 645 



Fission, 14, 40*, 46, 50, 59, 65, 69, 73, 74, 

 78, 79, 81, 90, 101 



Fissurella, 737, 745 



Five-chambered organ, 409* 



Fixed cheek of Trilobites, 605* 



Flabellum, 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 Astacns, 544 



Flame-cells, 238, 269 



Flat-worms -See Platyhelminth.es 



Fleas, 635, 640, 651 



Flies, 526, 619 



Float, 159*, 160 



Floscularia, 328, 330, 331 



Flmtra, 347 



FoJIi'-ulina, 94 



Food-yolk, 30 



Food vacuole, of Actiitophrys, 57 : Para- 

 //Kt'cium, 90* 



Foot, of Anodonta, 681 : Pelecypoda, 

 701: Arnphineura, 713 : Triton, 724: 

 Gastropods, 738, 739 : Sepia, 760 : 

 Xi'iufiln*, 111 : Cephalopoda, 791 



Foot-gland, 354 



Foraminifera, 48* : General structure, 50, 

 51 : Skeleton, 51, 52, 53 : Protoplasm, 

 54 : Dimorphism, 55, 56* : Repro- 

 duction, 56 : Distribution, 56 



Formica nija, 652 



Fossettes, 591* 



Fossils, 7* 



Fossida, 210 



Fredericella, 348 



Fresh- water Crayfish, 539 



Fresh- water Mussel See Anodonta 



Fresh-water Sponges, 126 



Fresh-water Worms, 439 



Fritillaria, 233 



Frondicularia, 53 



Frontal suture, 605* 



Fulcrum (of Rotifera), 325 



Fungia, 205 



Funic, 343 

 Funiculus, 343, 351 

 Funnel, 792 

 Funnel folds, 792 



G 



ALEA, 622 



Galathea, 569 



Galeodes, 663, 661 



Galls, 647 



Gall-flies, 636, 647 



Gall-insects, 647 



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

 80, 81 



Gametocytes, 80, 86 



Gammams, 584, 568, 583 



Ganiobium, 140*, 176 



Gamogenesis, 21* 



Ganglia, 38, 242 



Gastral cortex, 108, 111*, 119 



Gastric filaments, of Aurelia, 172* 



Gastric mill, 593 : of Astacun, 549 



Gastric ostium, 110* 



Gastric ridges, of A urelia, 173* : pouches, 

 170* 



Gastrolith, 549* 



Gastrophilus eqni, 634 



Gastropoda, 680, 721*: Example, 721: 

 Distinctive characters and classifica- 

 tion, 732: Systematic position of ex- 

 ample, 734 : General organisation, 735 : 

 External features, symmetry, &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, 752, 753, 

 754, 755 : Ethology and distribution. 

 755: Relationships, 756: Appendix, 

 756 



Gastropores, of Millepora, 156* 



Gastrotricha, 323, 335*, 336 



Gastrozooids, 163, 202 



Gastrula, 23* 



Gastrulation, 22, 23* 



Gela*imm, 591, 602 



Gemmules, 112, 121* 



Geme, 621* 



Generic, 1* 



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

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

 bursae, 430 : operculum, 655* 



Genital system See Reproductive system 



Genus, 1* 



Geological distribution See Distribu- 

 tion, geological 



Ge&planidce, 253 



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

 tinctive characters and classification, 



