ii. 186

Flying Lizards, ii. 401

Flying Opossum, figure of, i. 442

_Fordonia_, ii. 376

Forests, essential to existence of many European animals, i. 192 Siberian, greatest extent of, i. 216

FORMICARIIDÆ, ii. 297

FORMICARIINÆ, ii. 298

_Formicarius_, ii. 104

_Formicivora_, ii. 104

FORMICIVORINÆ, ii. 297

Formosa, zoology of, i. 332

_Fossa_, ii. 195

_Foudia_, ii. 286

_Francolinus_, ii. 338

_Fraseria_, ii. 272

_Fratercula_, ii. 367

_Fregetta_, ii. 365

_Fregilupus_, ii. 288

_Fregilus_, ii. 274

Fresh-water fishes, Neotropical, ii. 12 of S. Temperate America, ii. 42 of the Mexican sub-region, ii. 54 of the Antilles, ii. 73 of the Nearctic region, ii. 120 of California, ii. 128 summary and conclusion, ii. 549

Fresh-water mussels, ii. 534 shell, the most Arctic, ii. 518 snakes, ii. 376 snails, ii. 518

_Fringilla_, ii. 283

_Fringillaria_, ii. 285

_Fringillauda_, ii. 282

FRINGILLIDÆ, ii. 284

Frog-mouths, ii. 318

Frogs, ii. 420

_Fulica_, ii. 352

_Fuligula_, ii. 364

_Fulmarus_, ii. 365

_Fundulus_, ii. 450

FURNARIINÆ, ii. 295

_Furnarius_, ii. 103

_Fusus_, ii. 507

G.

GADIDÆ, ii. 439

GADOPSIDÆ, ii. 439

_Gadus_, ii. 439

_Galago_, ii. 177

Galapagos, scarcity of insects in, i. 463

Galapagos islands, ii. 29 mammalia of, ii. 29 birds of, ii. 30 reptiles of, ii. 32 insects of, ii. 33 land-shells of, ii. 33 conclusions as to the origin of their fauna, ii. 33

_Galatea_, ii. 536

_Galaxias_, ii. 448

GALAXIDÆ, ii. 448

_Galbalcyrhynchus_, ii. 311

_Galbula_, ii. 311

GALBULIDÆ, ii. 311

_Galecynus_, in European Pliocene, i. 112