flounder, 
eyes of, i, 118, 174-178 
frog, ii, 493 
lantern, ii, 488 
larval form, i, 176; ii, 483, 
484 
migration of eye, figured, 
il, 484 
newly hatched, figured, i, 
177 
osteology of, ii, 484 
peacock, ii, 488 
pole, ii, 494 
shoulder-girdle of, i, 58; 
li, 2 
starry, li, 493 
tail of, figured, ii, 486 
vertebre in, i, 205 
wide-eyed, ii, 488 
wide-eyed, figured, i, 175 
young, figured, i, 175; ii, 
8 
482 
flower of the surf, 
figure of, ii, 218. 
flow of blood in fish, i, 107 
flukes, ii, 494 
flying-fish, ii, 211-214 
figure of, i, 157, 341, 440 
parasites of, i, 342 
flyfish, ii, 429 
flying gurnard, li, 456, 458 
figure of, i, 457 
flying robin, ii, 458 
Fodiator, 
figure of, ii, 213 
food-fishes, 
abundance of, i, 329 
relative rank of, i, 320 
food of lampreys, i, 491 
foolfishes, i, 206; ii, 413 
Foot-notes to Evolution, 
reference to, i, 202 
foramen, i, 92 
forelle, i, 327 
Forcipiger, ii, 404 
Forgy, 
on oarfish, ii, 473 
Forbes, i, 419 
on fish epidemics, i, 340 
formalin, 
as preservative, i, 432 
Forskal, i, 394 
Forster, i, 395 
fossil capelin, ii, 126, 127 
fossil darters, ii, 315 
fossil fishes, i, 205; ii, 48, 52, 
53) 56, 174 
Agassiz on, i, 422, 423 
Dean on, i, 422 
earliest forms, i, 568 
figure of, i, 436, 454; il, 47, 
59 
first period of, i, 423 
Index 
fossil fishes, 
from Green River, ii, 59 
morphological work on, i, 
427 
second period, i, 424 
study of, i, 424 
third period, i, 427 
fossil gobies, ii, 467 
fossil herring, 
figure of, 1, 453; ii, 52 
fossil trout, ii, 62, 118 
four-eyed fish, 
figure of, i, 117 
four-spined stickleback,- 
figure of, ii, 232 
Fowler, i, 422 
fox shark, i, 536 
Frére Jacques, ii, 255 
fresh-water eels, ii, 149 
fresh-water fishes, i, 209; ii, 
157, 160, 161 
dispersion of, i, 282-296 
distribution of, i, 249 
Giinther on, i, 249 
of Japan, i, 256 
of North America, i, 290 
fresh-water minnows, i, 33 
fresh-water perch, 
figure of, li, 373 
Friar Odoric, 
on fear in fishes, i, 166 
Fries, i, 410 
frilled shark, i, 361, 516 
figure of, i, 525 
Fritsch, i, 427, 428, 512 
frog, 
arm of, figured, i, 601 
frogfish, 1, 197; il, 549 
figure of, li, 551 
frog flounder, li, 493 
frostfish, li, 537 
Fucus, ii, 512 
Fullarton, i, 177 
function of lateral line, i, 23 
Fundulus, ii, 194, 199 
figure of, i, 198 
fur seal, 
food of, ii, 127, 537 
Gadide, i, 290; ii, 522, 533 
Gadopside, i li, 516 
Gadus, i, 209, 391 
figure of, i, 3315 li, 533 
gazza, ii, 287 
gaff-topsail cat, 
figure of, ii, 179 
Gaidropsarus, i, 209; ii, 539 
Gaimard, i, 406 
galapata, li, 413 
Galaxias, i, 223, 252, 253, 254 
Boulenger on, ii, 204, 205 
Galaxiide, 
family of, ii, 204 
Safe 
Galei, i, 532 
Galeide, i, 540 
Gaieichthys, i, 128, 242, 271, 
273; 4, 178 
figure of, ii, 179 
Galeocerdo, i, 541, 542 
Galeoid sharks, i, 519 
Galeorhinide, i, 532, 540 
Galeorhinus, i, 454 
Galeus, 
figure of, i, 541 
gall-bladder, i, 26 
galliwasp, ii, 130 
galo, ii, 394. ~ 
Gambusia, i, 64, 66, 67; ii, 
199 
Ganocephala, i, 85, 86 
Ganoidei, i, 444, 599, 616; ii, 
2, 3) 13 
Ganoids, i, 22, 38, 88, 91, 139, 
157, 159, 186, 204, 384, 
569, 622; ii, 1-36 
Agassiz on, ii, 9 
air-bladder in, i, 109 
classification of, ii, 13 
Gill on, ii, 9 
as a group, . 4,9 
ganoid fish, i, 582 
figure of, i, 452, 453 
Garden, i, 390 
Garibaldi, 
figure of, i, 227; ii, 382 
garfish, ii, 147, 210, 211 
shoulder-girdle in, i,.59 
Garman, i, 405, 408, 420; ii, 
18 
on blind fish, ii, 202 
on frilled shark, i, 525 
on Sunapee trout, il, 109 
garpike, 290; ii, 30-32 
figure of, ii, 27 
fossil, ii, 32 
tail of, i, 82 
vertebra of, i, 48 
garrupa, li, 323 
gaspergou, il, 354 
Gasteronemus, i li, 288 
figure of, ii, 289 
Gasterosteide, i, 128, 290 
family of, ii, 228, 232 
Gasterosteus, i, 161, 
391; li, 229, 231, 
Lord on, ii, 230 
figure of, ii, 232 
Gastrostomus, 
figure of, ii, 156 
gastrula, i, 131, 132 
Gaudry, 
on leptocercal tail, i, 84 
Gay, i, 415 
Gegenbaur, i, 428, 511, 512, 
591, 594, 601 
on archipterygium, i, 60 
172, 
2306 
