vaca, 541 
Van Dyke, on ouananiche, 
310 
variety of tropical fishes, 142 
Vierosa, 672* 
viper-fishes, 352 
viscera, 24 
viuva, 640 
viviparous fish, 118* 
viviparous perch 587*, 590* 
volador, 669 
wachna cod, 743 
wall-eye, 523 
waterfalls and cascades, as 
barriers, 109 
watersheds, 
as barriers, 114 
how crossed, 115 
swampy, 123 
Suletind, 115 
weakfish, spotted, 567* 
Weberian apparatus of carp, 
379* 
weevers, 710 - 
whale-shark, 197 
white bass, 535 
white-bone porgy, 560 
white chub, 384* 
whitefish, 130%, 286, 287%, 
288* 
of California, 576 
Rocky Mountain, 287* 
Sault, 289 
white hake, 743 
Index 
white perch, 536* 
white surf-fish, 
588* 
Whitman, on instincts, 42 
wide-eyed flounder, 76*, 698* 
wide-mouthed flounder, 703* 
Williams, on flounder eye, 75 
window-pane, 697* 
wolf-fishes, 727%, 728 
woodcock-fish, 449 
Woodward, 
on chimeras, 219 
on Isospondyli, 265 
wrasse fishes, 596 
wrasses, 595 
wreckfish 537 
wrymouth, 726* 
32%, 586%, 
Xenocephalidz, 730 
Xenocys, 552* 
Xenomi, order of, 422 
Xenopterygii, 737 
Xiphasia, 725% 
Xiphias, 484*, 485* 
Xiphiide, 484 
Xiphiidine, 721 
Xiphistes, 722* 
Xiphophorus, 418% 
Xyrauchen, 394* 
Xyrias, 370* 
Xyrichthys, 599* 
Xystama, 562* 
yellow 
bass 535 
yellow 
catfish, 4or 
goatfish, 566 
mackerel, 4go* 
perch, 523* 
yellowfin 
grouper, 541* 
roncador, 571* 
trout, 328* 
Yellowstone miller’s-thumb, 
655* 
yellow-tail, 488 
yellow-tail roncador, 570 
snapper, 551* 
Young, on angling, 145 
young flounder, 692* 
young swordfish, 484* 
Zacalles, 721* 
Zalises, 455* 
Zanclide, 617 
Zanclus, 617* 
zander, 524, 533 
Zaprora, 501 
Zeide, 462 
Zenomi, 407-423 
Zeoidea, suborder, 460 
Zesticelus, 658 
Zeus, 463* 
zingel, 525* 
Zoarces, 728* 
Zoarcide, 728 
zoogeography, go 
Zygonectes, 417 
