INDEX 
759 
Twait Shad, 564 
Typhlichthys, O18; T. 
subterraneus, 619 
Typhlogobius, 689, 394; T. californiensis, 
690 
Typhlonus, 712, 7138; T. nasus, 712 
Typhlosole, 54 
OO T aL. 
TOS, 
Uljanin, 39 
Ulocentra, 659 
Umbra, 609; U. crameri, 610; U. limi, 
610 
Umbrina, 663; U. cirrhosa, 361 
Undina, 481, 161; U. gulo, 480 
Unio, Rhodeus in, 584 
Upeneichthys, 665 
Upeneoides, 665 
Upeneus, 665 
Uranoscopidae, 706, 703 
Uranoscopus, 706 ; eyes, 155 
Urenchelys, 601 
Urocampus, 634 
Urochord, 66 
Urochordata, 4, 63, 38 
Troconger, 601 
Urogymnus, 4604 
Urolepis, 487 
Urolophus, 464 
Uronemidae, 507 
Uronemus, 507, 519 
Urosphen, 632 
Ussoff, 38 
Vaillant, 596 n., 621 n., 720 n. 
Vallentin, R., 608 
Vandellia, 589; V. 
urethra, 593 
Vascular system, 313 f.; general, 315; 
Cyclostomata, 315, 327, 329, 330; 
Elasmobranchii, 316, 318, 327, 328, 
330, 331, 333, 334; ‘Teleostomi, 319, 
320, 321, 322, 328, 333, 335, 336, 337; 
Dipnoi, 323, 324, 326, 329, 338, 340; 
blood, 341 ; blood-glands, 342 
Velum, 120 
Vendace, 568 
Venous system, 315 f. 
Vermiform process, of Enteropneusta, 14, 
ly 
Vertebral column, 193 f. ; Seylliwm cani- 
cula, 193, 194, 195; Cyclostomata, 
197 ; Elasmobranchs, 197, 198; Chi- 
maera monstrosa, 199; Dipnoi, 199; 
Chondrostei, 200; Acipenser stwrio, 
200; Crossopterygii, Holostei, and 
Teleostei, 201 f.; Amia, 201, 203; 
Lepidosteus, 201, 204; Cuturus furcatus, 
203; Hurycormus  speciosus, 203 ; 
Gadus inorrhua, 205 
Vertebrates, characters of, 3 f. 
Vessels, of Ascidians, 41—see also Vas- 
cular system 
cirrhosa, entering 
Vidalia, 546 
Vipan, 592 
Vireosa, 689 
Visceral arches, 207 
Viviparous Fishes, 418 f., 433, 435 
Vogt, 37 
Vomeropsis, 677 
Vulsus, TOT 
Wagner, 595 n. 
Waite, 643 
Walking-Fish, 690 
Wallago, 588 
Warington, 630 n. 
Watase, 585 n. 
Weber, E. H., 573 
Weber, Max, 661 
Weberian ossicles, 389, 573 f. 
Weevers, 704, 174 
Weiss, 568 (= Coregonus) 
Weiss, F. E., 126 
Wels, 593 
Wertheimeria, 588 
Wetterfisch, 585 
Whill, 687 
Whip-tailed Rays, 464 
Whitebait, 564, 608 
White-Fish, 568, 569 
Whiting, 649, 168, 275 
Whyinper, 595 n. 
Wralley5) 7) 9) We Ws, loans, 6). 9 ies 
58 n., 113, 633 
Willeyia, 17 un. 
Williamson, 602 n. 
Wilson, 113 
Witch, 687 
Wodnika, 445 
Wolf-Fishes, 710, 251, 408 
Woodward, A. Smith, 458, 477 n., 480 
n., 497, 541 n., 542, 543, 622, 624, 626, 
680 
Wrasses, 673, 164, 166 
Wright, Ramsay, 587 
Wyman, 593 n., 596 n. 
Xanthochroism, 171 
NXenichthys, 659 
Nenocharax, S576, 578 
NXenocypris, 9S2 
NXenocys, 659 
Nenodermichthys, 570 
NXenomystus, 999 
NXenopholis, 498 
Xenopteri, 70S 
NXenopterus, 726 
Xenotilapia, G7 1 
Niphasia, 709 
Niphias, OSL; 
681 
Xiphiidae, 687, 676 
Niphiorhynchus, 6SO 
Niphistes, 709 
beak, 154; Y. gladius, 
