596 
thread-eel, ii, 151, 152 
figure of, i, 17, 365; ii, 152 
threadfins, i, 122; ii, 215, 224 
figure of, ii, 225 
shoulder-girdle of, i, 89; 
li, 225 
threadfish, ii, 276 
threadhead worms, i, 351 
thread-herring, ii, 51, 53 
three-forked hake, li, 539 
three-spined stickleback, 
figure of, ii, 232 
thresher-shark, i, 536 
Thrissopater, ii, 43 
Thrissops, ii, 41 
Thryptodontida, ii, 44 
Thryptodus, ii, 44 
Thunberg, i, 416 
thunder-pumper, i li, 354, 355 
Thunnus, i, 210, 272; li, 262 
Thursius, i, 604 
Thwaite shad, li, 50 
Thyestes, i, 576 
Thymallide, ii, 120 
Thymallus, i, 305; ii, 120, 
121, 122 
figure of, i, 328; 
122 
Thyrsites, ii, 267 
Thyrsitocephalus, ii, 267 
tide pools of Misaki, 
view of, i, 161 
tiger-puffer, ii, 423 
tiger-sharks, i, 533 
Tilapia, ii, 380 
tile-fish, ii, 361 
catastrophe to, ii, 362 
Collins on, ii, 362 
Gill on, ii, 361, 362 
Tilesius, i, 396, 416 
Tinca, i, 3453 li, 168, 175 
tinosa, ii, 276 
Tiphle, li, 236 
Titanichthyide, i i, 587 
Titanichthys, i, 583, 587, 589 
Titicaca Lake, 
peculiar fish from, ii, 201 
toadfish, ii, 525, 526 
Brazilian, ii, 526 
poison, li, 526 
poison-organs of, i, 180 
shoulder-girdle of, i, 59 
tomcod, ii, 5. 37 
figure of, ii, 538 
tomtates, ii, 341 
tonguefish, ii, 488, 497 
tooth, 
of Hybodus, Reon i, 528 
of Lamnide, i, 538 
topknot, ii, 488 
top-minnow, i, 118; ii, 198, 
199, 467, 
figure of, ii, 198 
ii, 120, 
Index 
toque, ii, 114 
torabuku, ii, 423 
tori, ii, 6 
Tornaria, 
figure of, i, 463 
torpedo, i, 268; ii, 183, 188 
figure of, i, 186; ii, 183 - 
fin rudiments in, i, 71 
torsk, ii, 539 
toto, ii, 398 
totuava, ii, 354 
Townsend, ii, 502 
Tower, 
on gas in swim-bladder, i, 
95, 96 
on weakfish, i, 94 
Toxotes, i, 240, 268; ii, 400 
Toxotide, ii, 400 
Trachicephalus, 
figure of, i, 456; ii, 438 
Trachichthyide, ii,253 
Trachichthys, i, 263; ii, 252 
Trachidermus, ii, 445 
Trachinide, ii, 500, 501, 506, 
$25 
Trachinotus, i, 322; ii, 276 
Trachinus, i, 169, 180, 391; 
ii, 500, 501 
Boulenger on, ii, 501 
Trachosteus, i, 583, 588, 589, 
$9° c 
Trachurops, ii, 275 
Trachurus, i, 210,274 
figure of, ii, 274 
Trachypteride, 
family of, ii, 477 
Goode and Bean on, ii, 479 
Trachypterus, i, 144; ii, 425, 
477 
figure of, ii, 478 
Giinther on, ii, 480 
Trachyrhynchus, ii, 541 
trahira, ii, 162 
transportation of fishes, i, 150 
Trautschold i, 427 
Traquair, i, 426, 428 
on Gnasthome, i, 573 
on high and low forms, i, 
381, 382 
on Ostracophores, i, 569- 
571 
on Palzospondylus, i, 591 
portrait of, i, 425 
on sharks, i, 512 
Traquairia, i, 517 
ei ea ‘the, i, 408; ii, 
le) 
tree-climber of India, 
Daldorf on, i, 163 
treefish, ii, 431 
Tremataspide, i i, 576 
trematodes, i, 344 
Triakis, i, 54r 
Triacanthidide, ii, 412 
Triacanthodes, ii, 412 
Triacanthus, ii, 412 
Trichina, i, 352 
Trichiurichthys, ii, 268 
Trichiurida, i, 210; ii, 472 
family of, ii, 267 
Trichiurides, ii, 32 
Trichiurus, ii, 268, 479 
figure of, ii, 268 
Trichodon, 
figure of, ii, 364 
Trichodontida, ii, 364, 506 
trinomial nomenclature, i, 378 
trigger-fishes, i, 440; li, 412, 
413 
figure of, i, 184, 412 
Trigla, i, 169, 391; ii, 456, 
457 
air-bladder of, i, 97 
Triglide, i, 122, 208; li, 455 
family of, ii, 455 
Triglops, ii, 442 
figure of, i, 443 
Triglopsis, i, 3173 Ui, 447 
Trigonodon, i li, 347 
Triodon, ii, 419 
Triodontide, ii, 418 
Tripterygian, ii, 508 
Tristichopterus, i, 603 
Trochocopus, ii, 388 
Troglichthys, i, 220, 
li, 202, 203 
tropical fishes, 
species of, i, 271 
variety among, i, 333 
Tropidichthyide, ii, 421 
Tropidichthys, i, 115; ii, 422 
Troschel, i, 415 
trout, i, 1 56, 250, 290, 304, 
326, 3273 ii, 38, a1, 6r, 
89, 90, 107, 121, 128, 
147, 168 
tail figure of, ii, 486 
of Utah basin, ii, 104 
of Yellowstone, i, 345 
trout-perch, i, 241, 290; ii, 61 
figure of, ii, 242 
trout-spotted darter, ii, 314 
trout-worm, ii, 103 
figure of head, ii, 103 
segments of, figured, ii, 103 
trucha, ii, 320 
true eels, ii, 141 
shoulder-girdle in, ii, 141 
true perches, ii, 304 
true sharks, i, 523-560 
true snapper, ii, 337 
trumpeter, ii, 363 
trumpet-fish, i, 51, 440 
family of, i, 233 
figure of, i, 234 
truncate, i, 19 
222; 
