sleeper-shark, i, 547 
sleepy Argentine, ii, 134 
slippery Dick, ii, 388 
figure of, i, 297; ii, 180, 
396 
Sloane, i, 389 
small-mouthed bass, 
figure of, i, 325; ii, 303 
smear-dab, ii, 494 
smelt, ii, 66, 91, 120-138 
figure of, li, 123 
Smerdis, ii, 310, 330 
Smith, i, 416, 419, 608 
on Arctic species, i, 317 
Smitt, i, 410 
snailfish, ii, 455 
snake-blennies, ii, 512 
snake-eels, ii, 150 
figure of, i, 233 
snake-headed China-fish, ii, 
37t en 
figure of, i, 150; ii, 371 
snake-headed mullets, ii, 370 
snapper, li, 333, 335, 338 
.diamond, il, 337 
gray, ii, 334, 335 
lane, ii, 336 
mahogany, ii, 337 
mangrove, ii, 335 
mutton, ii, 335 
red, li, 335 
silk, ii, 336 
true, ii, 337 
yellow-tail, ii, 337 
snipe-eels, ii, 151 
snipefishes, ii, 234 
Snodgrass, i, 422; ii, 423 
snooks, ii, 282, 320 
snowy grouper, 
figure of, ii, 329 
Snyder, i, 418, 420 
Snyderina, 
figure of, ii, 437 
soapfishes, ii, 330 
figure of, ii, 330 
sobaco, ii, 413 
sockeye, ii, 69 = 
soft-rayed fishes, i, 204; ll, 
. 9 
_soi, ii, 429 
soldados, ii, 253 
Solander, i, 395 
soldier-fish, ii, 315 - 
family of, ii, 253 
figure of, ii, 254 
Solea, i, 327; ii, 487, 496 
Soleide, i, 290; ii, 495, 
499 
Soleinz, ii, 496 
Solenostomide, 
family of, ii, 236 
Solenostomus. i, 128; ii, 236 
figure of, ii, 237 
Index 
soles, ii, 495 
broad, ii, 495 
Day on, ii, 496, 497 
European, ii, 496 
Gill on, ii, 496 
habits of, ii, 496 
hog-choker, ii, 498 
Parker on, ii, 483 
Sonnerat, i, 395 
SGrensen, 
on elastic spring, i, 97 
sounds of fishes, i, 168-170 
Bowring on, i, 168 
soup-fin sharks, 
figure of, i, 541 
southern zone, i, 253 
spadefish, ii, 400 
figure of, i, 325; ii, gor 
Spaniodon, ii, 43 
Spaniodontide, li, 47 
Spanish-flag, ii, 323, 429 
Spanish-mackerel, i, 64, 210, 
322 
figure of, i, 322; ii, 264 
Goode on, il, 264, 265 
Mitchill on, ii, 264 
Sparide, i, 206; ii, 342, 344, 
346, 372 
family of, ii, 342 
Sparisoma, i, 268; ii, 352, 
391, 392, 396 
figure of, ii, 392 
jaws figured, i, 30 
Sparnodus, ii, 347 
Sparus, i, 259, 263, 391; ii, 
346 
Spathiurus, ii, 36 
Spaulding, ii, 84 
marking of fry by, li, 84 
spawning-grounds, 
return to, ii, 82 
spawning of salmon, i, 160 
special creation impossible, 
i, 295 
spearfish, i, 199; ii, 469 
specialized fishes, i, 249 
species, i, 371 
absent through barriers, i, 
238 
changed through natural 
selection, ii, 239 
characters of, i, 292 
conditions favorable to, i, 
301 
extinction of, i, 239 
meaning of, i, 293, 379 
special creation, i, 295 
transfer of, i, 312 
speckled flounder, ii, 488 
speckled hind, ti, 324 
figure of, ii, 325 
speckled trout, 
figure of, i, 326; ii, 110 
593 
Spengel, 
on Enteropneusta, i, 464 
Spengelia, i, 465 
Spengeliide, i, 465 
sperling, ii, 123 
Sphzrodon, i, 268 
Sphagebranchus, ii, 151 
Sphagepza, i, 565 
sphenial, i, 606 
Sphenocephalus, ii, 252 
Spheroides, i, 206; ii, 419- 
421 
figure of, i, 420 
Sphyrenida, i, 206 
family of, ii, 222 
Sphyrena, ii, 221 
figure of, ii, 223 
Sphyreenodus, ii, 266 
Sphyrna, i, 543 
figure of, 1, 544 
Sphyrnide, i, 543 
Spicara, i, 260; il, 347 
Spinacanthide, ii, 415 
Spinacanthus, ii, 415 
Spinachia, ii, 232 
spinal cord, i, 112 
spineless trunkfish, 
figure of, i, 378; ii, 417 
spines of catfish, i, 179 
spiny eels, ii, 157 
spiny-rayed fishes, i, 21, 206— 
208; ii, 39, 208, 307 
skeleton of, figured, i, 214 
spiracle, i, 92 
Spiraculis, 1, 393 
spiral valve, i, 32 
splenial, i, 43 
split-tail, ii, 169 
Spondyliosoma, i, 260, 267; 
ii, 348, 350 
spookfishes, i, 564 
spot, ii, 356 
spotted trout, ii, 105 
spotted trunkfish, ii, 416 
figure of, i, 3773 ii, 417 
spotted weakfish, 
figure of, ii, 353 
sprat, i, 204; li, 50, 123 
spring salmon, ii, 80 
Squalide, i, 531, 543, 545) 
546, 566 
Squaloraja, i, 566 
Squalorajide, i, 566 
Squalus, i, 391 
figure of, i, 545 
Squamipinnes, ii, 209, 411 
Squamipinus, ii, 397-410 
square-tails, ii, 291 
Squatina, i, 548 
brain of, figured, i, 547 
pectoral fin figured, i, 
5 
Squatinide, i, 549, 554 
