706 
Trematoceras, 523 
Trematodiscus, 523 
Trematonotus, 445 
Trematopora, 275 
Trematospira, 337 
Tresus, 420 
Tretoceras, 529 
Tretospira, 458 
Triacrinus, 136 
Triaena, 688 
Trianioceras, 554 
Triarthrus, 629 
Triboloceras, 523 
Trichasteropsis, 208 
Trichites, 369 
Tricoelocrinus, 195 
Triforis, 469 
Trigeria, 326, 337 
Trigonella, 332 
Trigonia, 379 
Trigonoceras, 523 
Trigonocoelia, 365 
Trigonodictya, 280 
Trigonodus, 375 
Trigonoseimus, 332 
Trigonotreta, 335 
Trigonulina, 392 
Trimerella, 306 
Trimeres, 531 
Trimerocephalus, 636 
Trimeroceras, 531 
Trimorion, 531 
Trinacria, 36 
Trinucleus, 624 
Trioculina, 26 
Triodonta, 397 
Triplecia, 315 




Tripleuroceroceras, 52 
Triplex, 477 
Triploca, 484 
Tripneustes, 233 
Triptera, 490 
Tripylus, 245 
Triton, 474 
Tritonidea, 475 
Tritoniun, 474 
Trivia, 473 
Trochalia, 468 
Trochammina, 23 
Trochoceras, 524 
Trochocyathus, 84 
Trochocystites, 186 
Trocholites, 519 
Trocholitoceras, 519 
Trochomorpha, 497 
Trochonema, 449 
Trochoseris, 91 
Trochosmilia, 88 
Trochotoma, 444 
Trochus, 450 
Troostoerinus, 195 
Tropaeum, 571 
Trophon, 477 
Tropiceltites, 558 
Tropidaster, 210 
TEXT-BOOK 
Tropidocaris, 656 
| Tropidoceras, 575 
Tropidoleptus, 330 
Tropidomya, 393 
Tropidopora, 281 
Tropites, 554 
Trunearia, 476 
Truneatula, 264 
Truncatulina, 30 
Tryblidium, 442 
Tubina, 461 
Tubipora, 107 
Tudicla, 477 
Tudora, 460 
Tugonia, 421 
Tulotoma, 463 
| Turbina, 450 


Turbinaria, 95 
Turbinella, 479 
| Turbinilopsis, 459 
Turbinolia, 83 
| Turbo, 448 
Turbonellina, 450 
Turbonilla, 457 
| Turbonitella, 459 
Turnus, 424 
Turonia, 49 
Turricula, 479 
Turrilepas, 649 
Turrilites, 587 
| Turritella, 465 
Turtonia, 411 
Tyleria, 390 
Tylopoma, 463 
Tympanotomus. 470 
Typhis, 477, 668 
Udora, 661 
Udorella, 661 
Uintacrinus, 165 
Ulangia, 86 
Ulocrinus, 162 
Umbonium, 451 
Umbraculuin, 487 
Umbrella, 487 
Uneinella, 335 
Uncinulina, 324 
Uneinulus, 324 
Uncites, 335 
Undularia, 456 
Ungula, 306 
Ungulina, 410 
Ungulites, 306 
Unieardium, 407 
Unieytis, 264 
Unio, 377 
Uniocardium, 413 
Uniona, 375 
Unitrypa, 282 
Uphantaenia, 55 
Uptonia, 574 
Uranoceras, 527 
Urasterella, 207 
Urda, 668 
Urechinus, 244 
OF PALAEONT OLOGY 


Ussurites, 566 
Uvanilla, 448 
Uvigerina, 28 
Vaginella, 490 
Vaginoceras, 514 
Vaginopora, 289 
Vaginulina, 27 
Valenciennesia, 492 
Valletia, 401 
Valvata, 463 
Valvatina, 489 
| Valvulina, 28 

Vanuxeiia, 365 
Vascoceras, 586 
Vasseuria, 598 
Velates, 454 
Velorita, 397 
Veloritina, 397 
Venericardia, 398 
Venerupis, 416 
Veniella, 395 
Venilia, 395 
Venilicardia, 395 
Ventriculites, 60, 65 
Venus, 415 
Vermetus, 466 
Vermiceras, 575 
Verneuilia, 336 
Verneuilina, 28. 
Verruca, 651 
Verrucocoelia, 57 
Verruculina, 53 
Vertagus, 469 
Vertebralina, 27 
Verticordia, 392 
Vertigo, 496 
Vertumnia, 370 
Vestinautilus, 523 
Vevoda, 361 
Vibracella, 286 
Vicarya, 469 
Vincularia, 286 
Virgatites, 583 
Virgularia, 106 
Vishnuites, 556 
Vitrina, 497 
Vitrinella, 452 
Vitulina, 338 
Viviparus, 463 
Viasta, 361 
| Vola, 380 
Volborthella, 516 
Volborthia, 308, 312 — 
| Voluta, 480 
| Volutella, 480 
Volutifusus, 480 
Volutilithes, 480 
Volutoderma, 480 
Volutomitra, 480 
Volutomorpha, 480 
Volvaria, 485 
Volviceramus, 370 
BEND OF VOL. I. 
Printed by R. & R. Crark, Limitep, Edinburgh. 
Volvula, 487 
| Volvulella, 487 
| Volvulina, 485 
| Vulsella, 372 * 

Vulsellina, 372 
Waagenia, 445, 578, 583 
Waagenoceras, 564 
Waehneroceras, 574 
Wakullina, 384 
Waldheimia, 333 
Waltonia, 333 
Warthia, 445 
Welschia, 576 
Whiteavesia,; 385 
Whitella, 365 
Whitfieldella, 338 
Whitfieldia, 338 
Willemoesia, 661 
Williamia, 493 
Wilsonia, 324 
Witchellia, 578 
Woodia, 395 
Woodocrinus, 160 
Worthenia, 443 
Worthenopora, 283 
Wyomingites, 556 

Xantho, 666 
Xanthopsis, 666 
Xenaspis, 556 
Xenaster, 208 
Xenocidaris, 220 
Xenocrinus, 145 
Xenodiscus, 556 
Xenoneura, 684 
Xenophora, 463 
Xiphidioearis, 655 
Xiphoteuthis, 596 
Xylobius, 681 
Xylotrya, 424 
Yetus, 480 
Yoldia, 364 
Zaphrentis, 75 
Zdimir, 321 
Zeacrinus, 160 
Zeilleria, 332 
Zellania, 330 
Zemira, 476 
Zenatia, 420 
Zeuglopleurus, 232 
Zittelia, 472 
Zittelispongia, 61 
Zitteloceras, 522 
Ziziphinus, 451 
Zonites, 497 
Zonopora, 266 
Zonozoe, 656 
Zugmeyeria, 329 
Zurcheria, 577 
Zygites, 443 
Zygopleura, 456 
Zygospira, 333 
