INDEX IV Fistularia, 46 Fistulariidae, Plate 24, Map iv; p. 46 Flamingoes, Plate 16, Map iii; p. 32 Flat-Fishes, Plate 23, Map i; p. 44 Flies, Caddis-, Plate 35, Map v; p. 56 ,, Dragon, Plate 35, Map v ; p. 56 ,, Horse־, Plate 35, Map iii; p. 56 ,, Hoverer-, Plate 35, Map iii; p. 56 ,, Tsetse, Plate 35, Map iii; p. 56 Flounder, 44 Flower-Peckers, 27 Fluminicola, 50 Flute-Mouths, Plate 24, Map iv ; p. 46 Flycatchers, Plate 12, Map i; pp. 8, 28 ,, Tyrant, Plate 12, Map v; pp. 9, 29 Flying-Fish, Plate 24, Map iii; p. 45 Footmen (Moths), 54 Foresters (Moths), 53 Formicariidse, Plate 12, Map vii; pp. 9, 29 Formicidse, Plate 35, Map i; p. 55 Formosa, Fauna of, 11 Fornarina, 19 Fossa, 7, 17 Fountain-Shell, 50 Four-eyed Fishes, 46 Fowls, Guinea, Plate 18, Map v; pp. G, 36 ,, Jungle-, Plate 18, Map iv ; p. 36 Foxes, Plate 5, Map v ; pp. 8, 17 Foxes, Flying-, Plate 3, Map vi; p. 14 Francolins, 36 Francolinus, 36 Fratercula, 34 Fregatidae, Plate 15, Map iv; p. 32 Fregilina, Plate 10, Map i Frigate-Birds, Plate 15, Map iv ; p. 32 Fringilla, 5 Fringillidse, Plate 10, Map iv; pp. 8, 26 Fritillaries, Plate 30, Map i; p. 52 Fritillary, Duke of Burgundy, 53 Frog-Fishes, Plate 22, Map iii 5 p. 43 Frog-mouths, Plate 13, Map iv; p. 30 Frogs, Disc-tongued, Plate 21, Map iv ; pp. 7, 41 ,, Horned, 41 ,, Piping, 41 ,, Solid-chested Tree-, Plate 21, Map i; pp. 9, 10, 41 ,, Typical, Plate 21, Map i; p. 41 ,. Typical Tree-, Plate 21, Map iii; pp. 8, 10, 41 Fulica, 35 Fulicince, Plate 18, Map i; p. 35 Fidigula, 32 Fuligulince, Plate 16, Map i; p 32 Fvlmarince, 34 Fulmars, Plate 17, Map v; p. 34 Fulmarus, 34 Furnarinus, 29 Gadidse, Plate 24, Map i; p. 45 Gadwall, 32 Galagince, 13 Galagos, 13 Galapagos Islands, Fauna of, 11 Galaxiidse, Plate 25, Map i; p. 46 Galbulidas, Plate 13, Map i; pp. 9, 29 Galeopithecidae, Plate 4, Map ii; pp. 7, 15 Galeopithecus, 11 Galeus, 48 GALLIFORMES, 36 Gallinago, 34 Gallinula, 35 Gallus, Plate 18, Map iv; p. 36 Gannets, Plate 15, Map iii; p. 32 Gare-Fowl, 34 Gar-Fish, 45 Garganey, 32 Garials, 40 Gar-Pike, Plate 24, Map iii; p. 45 ,, Long-nosed, 47 Garrulince, Plate 10, Map i; p. 25 Garrulus, 5 Gastropacha, 54 GASTROPODA, 49 Gastrosteidse, Plate 24, Map iv; pp. 5, 46 Gastrosteus, 46 Gaur, 22 Gavialidse, Plate 20, Map iv; pp. 7, 40 Gavialis, 40 Gavials, Plate 20, Map iv; pp. 7, 40 Gayal, 22 Gazella, 21 Gazelles, 21 Gecinus, 29 Geckonidse, Plate 20, Map iii; pp. 9, 39 ,, in Galapagos Islands, 11 Geckos, Plate 20, Map iii; pp. 9, 39 Geese, Plate 15, Maps v and vi; p. 32 Gelasinus, 14 Gemsbok, 21 Eels, Typical, Plate 25, Map ii; p. 46 Eggars, Plate 32, Map iv; p. 54 Elachistodon, Plate 19, Map ii; p. 37 Elachistodontidse, Plate 19, Map ii; pp. 7, 37 Elands, 21 Elaphodus, 6, 22 Elapidse, Plate 19, Map ii; pp. 8, 10, 37 Elaps, 37 Elateridse, Plate 33, Map vi; p. 55 Elephantidse, Plate 7, Map i; pp. 7, 20 Elephants, Plate 7, Map i; pp. 6, 7, 20, 21 J Elephas, 7, 20, 21 Elks, 5, 10, 22, 23 Elopidse, Plate 25, Map v; p. 47 Elops, 47 Elymnias, 6 Elymniidse, Plate 31, Map iv; pp. 7, 53 Emberiza, 26 Emberizidse, Plate 10, Map iv; p. 26 Embiotocidae, Plate 23, Map iii; p. 44 Emus, Plate 18, Map vi •, pp. 8, 37 Emys, 40 Endromis, 53 Engraidis, 47 Engystomatidae, Plate 21, Map ii; pp. 8, 41 Eos, 31 Epanorthidae, 25 Equidae, Plate 7, Map iii; pp. 6, 21 Equus, 21 Erebia, Plate 31, Map iii; p. 53 Erethizon, 19 Erethizontidae, Plate 6, Map iv; pp. 9, 19 Erinaceidae, Plate 4, Map iv; pp. 8, 15 Erinaceus, 15 Erismaturince, Plate 16, Map ii ; p. 32 Erithacus, 5 Ermine, 16 Eryx, 38 Esocidas. Plate 25, Map i; pp. 5, 46 Esox, 46 Ethiopian Region, 6 Eublepharidae, Plate 20, Map iii; p. 39 Eublepharis, Plate 20, Map iii; p. 39 Euchelia, 54 Eudocimus, 33 Eueides, 52 Eulabes, 26 Eulabetidae, Plate 10, Map ii; p. 26 Eumetopias, 16 Eunectes, 38 Euphcedra, Plate 30, Map iv; pp. 6, 52 Euplxea, Plate 29, Map v; pp. 7, 52 Euproctis, 54 Euptychia, Plate 31, Map ii; p. 52 European Sub-region, 5 Eurycantha, 56 Euryceros, 2!! Eurycerotidse, Plate 10, Map ii; p. 26 Eurycus, 51 Eurylasmidse, Plate 12, Map. viii; pp. 7, 29 EURYLiEMIFORMES, 29 Eurypyga, 33 Eurypygidse, Plate 16, Map vi; pp. 9, 33 Eurystomus, 30 Euselasia, S3 Euselasiidffi, Plate 31, Map v; pp. 9, 53 Eutamias, 20 Euthalia, Plate 30, Map v; pp. 7, 52 Evolution of new species and genera, 3 Evotomys, 20 Exocwtus, 45 Faisan, 36 Falco, 32 Falconidae, Plate 15, Maps i and ii; p. 31 Falcons, Plate 15, Map ii; p. 32 Feather-Backs, Plate 25, Map v; p. 47 Felidse, Plate 5, Mapvi; pp. 6. 17 Felis, 7, 17, 18 Fennecs, 17 Fennecus, 17 Ferussacia; 49 Fiatola, 45 Fiber, 20 Fieldfare, 28 Fierasfer, 46 Fierasferidse, Plate 24, Map v; p. 46 File-Fishes, Plate 22, Map ii; p. 42 Finches, Plate 10, Map iv; pp. 5, 8. 26 Finfoots, Plate 18, Map i; p. 35 Finners, Plate 8, Map iv Firecrest, 27 Fish, Black, 45 FISHES, 42 Fishes, Bony, 42 ,, Shore, Gunther’s Scheme for showing distribution, 12 Dibamidse, Plate 19, Map v; pp. 7, 38 Dibamus, Plate 19, Map v; p. 38 Dicaeidae, Plate 10, Map vi; pp. 7, 8, 27 Dicmim, 27 Dicotyles, 23 Dicotylidse, Plate 7, Map vii; pp. 9, 10, 23 Dicranura, 53 Dicruridse, Plate 10, Map ii; pp. 7, 26 Didelphidm, Plate 9, Map viii; pp. 9,10, 25 Didelphys, 25 Dididae, Plate 18, Map iii; p. 35 Didunculidae, Plate 18, Map iii; pp. 8, 35 Eidus, 35 Dingo, 17 Dinomyidse, Plate 6, Map iii; pp. 9, 18 Dinomys, Plate 6, Map iii; pp. 9, 18 Diodontidse, Plate 22, Map i; p. 42 Diomedea, 35 Diomedeidse, Plate 17, Map v; p. 34 Diplommatina, 50 DIPNEUSTI, 42 DIPNOI, 42 Dipodomys, 19 Dippers, Plate 11, Map v ; p. 28 ,, Absence of, 6 Dipsadomorphidse, Plate 19, Map ii; pp. 10, 37 DIPTERA, 56 Discoglossidse, Plate 21, Map iv; pp. 7, 9, 41 Discoglossus, 41 Disrnorphia, Plate 29, Map iii; p. 51 Dispersal, Conditions favouring, 1 ,, ״ limiting, 2 ,, Necessity for, 1 Distir a, 37 Distribution, Effect of past Geological changes on, 3 ״ General Principles of, 1 ״ Latitudinal, Plate 36 ״ Vertical, Plate 36 Divers, Plate 17, Map vi; p. 5, 35 Dodos, Plate 18, Map iii; p. 35 Dog-Fishes, Plate 26, Map v ; p. 48 ״ Spiny, Plate 26, Map iii; p. 48 Dogs, Plate 5, Map v; pp. 6, 7, 8, 17 ״ of the Water, 47 ״ Prairie-, 10 DolicJiotis, 18 Dolphins, Plate 8, Maps ii-iii; p. 23 ,, (Fishes), Plate 23, Map i; p. 44 Dorab, Plate 25, Map iv ; p. 47 Dor cop sis, 25 Dories, Plate 23, Map i; p. 44 Doritis, 6 Dormice, Plate 6, Map vii; pp. 5, 20 Doryphora, 55 Double-Eyes, 46 Doves, 35 ״ Turtle-, Plate 18, Map ii; p. 35 Draco, 39 Dragon-Fishes, Plate 24, Map iii; p. 45 Dreissensia, Plate 28, Map v; p. 51 Drepanididse, Plate 10, Map vi; pp. 8, 27 ,, in Sandwich Islands, 11 Drcpanis, Plate 10, Map vi; pp. 8, 27 Dromadidse, Plate 17, Map iii; p. 34 Dromseidse, Plate 18, Map vi; pp. 8, 37 Dromaus, 37 Dromas, 34 Dromedary, 23 Drongos, Plate 10, Map ii; pp. 7, 26 Drury ia, 51 Duckbill, Plate 9, Map x ; pp. 8, 25 Ducks, Plate 16, Maps i-ii; p. 32 Dugongs, Plate 8, Map vi; p. 24 Dunlin, 34 DUPLICIDENTATA, 18 Dynastides, 54 Dyscophidae, Plate 21, Map ii; pp. 7, 41 Dyscophus, Plate 21, Map ii; p. 41 Dytiscidae, Plate 33, Map v; p. 54 Dytiscus, 54 Eagle-Rays, Plate 26, Map i; p. 48 Eagles, Plate 15, Map ii; p. 32 East African Sub-region, 6 Echeneididse. Plate 22, Map vi; p. 43 Echidna, 25 Echidnidse, Plate 9, Map ix; pp. 8, 25 Echinorhinus, 48 Ectopistes, 10, 35 EDENTATA, 24 Eel-Pout, 45 ,, American, 43 Eels, Electric, Plate 25, Map iii; pp. 46-47 ,, Mud-, Plate 21, Map v ; pp. 10, 42 ״ Mursenoid, Plate 25, Map i; p. 46 ,, Sand, Plate 24, Map iii; p. 45 ,. Single-Slit, Plate 25, Map ii; p. 46