558 
Asterospondyli, i, 447, 510, 
513, 532 
order of, i, 525 
asterospondylous, i, 49 
Asterosteida, i, 584, 585 
Asterosteus, i, 585 
Asterropteryx, 1, 263 
Astrodermiide, i, 551 
Astrodermus, i, 551 
Astrolabe, the, i, 408 
Astrolytes, 
figure of, ii, 442 
Astronesthide, ii, 128 
Astrape, i, 554 
Astroscopus, ii, 503 
Gilbert on, i, 187 
electric organs of, i, 187 
Asymmetron, i, 483; ii, 467 
Ateleaspis, i, 574 
Atheresthes, i, 205; ii, 491 
Atherina, i, 393; ii, 216 
Atherinide, i, 290; ii, 215 
Atherinops, ii, 218 ~ 
Atherinopsis, 
figure of, ii, 218 
Atherinosoma, ii, 218 
Athlennes, ii, 211 
Atka fish, 
figure of, i, 328; ii, 439 
Atka mackerel, ii, 439 
Atlantic creek, i, 308, 309 
Atlantic oarfish, ii, 472 
Atlantic salmon, ii, 89 
attenuate, i, 19 
Atthey, i, 426 
Auchenopterus, ii, 508 
atule, ii, 275 
auditory ossicles, ii, 160 
Aulichthys, ii, 233 
Aulolepis, ii, 48 
Aulopide, ii, 130, 132 
Aulopus, 259; li, 190 
Aulorhamphus, ii, 406 
Aulorhynchide, 
family of, ii, 232 
Aulorhynchus, ii, 233 
Aulostomide, 
family of, ii, 233 
Aulostomus, ii, 233 
figure of, ii, 234 
Australia, ii, 363 
Australian flying-fish, 
figure of, i, 341 
Australian lung-fish, i, 100 
autochthonous, i, 245 
autostylic skull, i, 561; ii, 8 
Auxis, ii, 262 
awa, ii, 45, 221 
awaawa, li, 43 
awaous, i, 254; ii, 465 
aweoweo, ii, 333 
Axinurus, ii, 409 
axonasts, i, 604, 605; ii, 17 
Index 
Ayres, i, 419, 428 
ayu, i, 256; ii, 115, 117, 118 
figure of, i, 321; ii, 116 
fishing for figured, i, 333, 
335, ¥ 
Azevia, i, 271; ii, 489 
d’Azyr, i, 390 
Azygostei, i, 581 
azygous, i, 88 
Baer, i, 428 
Bagarius, ii, 186 
bagonado, ii, 344 
bagre, ii, 182 
bagre de Rio, ii, 182 
Bagrus, ii, 183 
Baikal cods, ii, 455 
Baird, i, 419; ii, 142 
on bluefish, ii, 279-282 
on eel migrations, ii, 142 
portrait of, i, 407 
Bairdiella, ii, 355 
figure of, ii, 355 
Bakker, i, 428 
Balanoglosside, i, 465 
Balanglossus, i, 461 
Balanus, ii, 544 
balaos, ii, 212 
Balfour, i, 428, 511, 513; ii, 8 
finfold theory, i, 69, 514 
lateral -fold theory, i, 71- 
73 
on paired fins, ii, 8 
on sharks, i, 511 
Balfour and Parker, 
on Lepidosteus, ii, 5 
Balistapus, i, 181; ii, 413 
Balistes, i, 206, 391, 611; 
ii, 22 
figure of, i, 184; ii, 412 
Balistide, ii, 413, 418 
family of, ii, 412 
Ballou, 
on eels, ii, 417 
banded rockfish, 
figure of, ii, 432 
banded sunfish, 
figure of, ii, 299 
bandfishes, ii, 363 
bandfishes, 
the crested, ii, 291 
Banks, i, 395 
barbels, i, 115; ii, 170 
organs of touch, i, 122 
barber-fish, ii, 328 
barbero, ii, 408 
barbudos, ii, 256 
Barbulifer, ii, 462 
Barbus, ii, 170, 175 
Barkas, i, 426 
Barneville, i, 412 
Barracuda, ii, 34, 39, 215, 
266, 317, 469 
Barracuda, 
family of, ii, 222 
figure of, ii, 223 
Gn nck: i, 116, 614, 615 
Giinther on, i, 615 
barreto, ii, 467 
barriers, 
Alleghanies, i, 311 
artificial dams, i, 300 
Cape of Good Hope, i, 268 
checks to movement, i, 240 
crossing by fishes, i, 302 
to dispersion, i, 297 
Isthmus of Panama, i, 269 
local, i, 298 
mountain chains, i, 310 
Rocky Mountains, i, 305 
the Sierras, i, 310 
silt-bearing streams, i, 301 
species absent from, i, 239 
temperature, i, 298 
water-falls, i, 300 
watersheds, i, 205 
basal bone, 
of dorsal fin, i, 49 
figure of, i, 49, 56 
of pectoral fin, 1, 59 
baseosts, ii, 17. | 
basilar, i, 88 
Basilevsky, i, 411 
basking shark, i, 539 
figure of, i, 540 
largest of fishes, i, 539 
bass, 1, 4, 21, 47, 290, 323, 
440; ii, 316-350 
black, i, 303, 304 
white, i, 321 
yellow, i, 321 
bassalian fishes, i, 245, 246; 
ii, 128 
Bassani, i, 427 
Bassozetus, 
figure of, i, 456 
bastard halibut, ii, 489 
Bateson, i, 463 
Lbatfish, ii, 4o2, 458 
figure of, ii, 553 
shoulder-girdle of, i, 88; 
ii, 55x 
Bathyclupeide, ii, 290 
Bathygadus, ii, 541 
Bathylagus, ii, 127 
Bathymaster, ii, 502 
figure of, ii, 503 
Bathymasterida, ii, 502 
Bathyonide, ii, 540 
Bathyonus, li, 540 
Bathypteroide, ii, x 30 
Bathypterois, ii, 131 
Batoidel, i, 519 
suborder of, i, 549 
Batrachians, i, 85, 87, 88 
Batrachoides, i, 394; ii, 526 
