INDEX 



839 



Volutilithes, 561 

 Volutodernia, 561 

 Volutomitra, 500 

 Volutomorplia, 561 

 Volvai^ia, 566 

 Volviceranius, 447 

 Volvula, 56S 

 VolruUUa, 568 

 Vulsella, 449 

 Vulsellina, 449 



Waagetiia, 660, t565 

 Waagenoceras, 642 

 Waagenupora, 387 

 Waclismiithicrinus, 205 

 Waehneroceras, 657 

 Wakiillina, 461 

 Waldheiiaia, 408 

 Waltonia, 408 

 Waniieria, 714 



Wai)tia, 733 

 Watthia, 523 

 Welscliia, 658 

 Wf'slonia, .'iTl 

 Whiteavesia, 462 

 Wliitella, 442 

 Wliitfleldia, 415, 416 

 Willemoesia, 761 

 Williamia, 573 

 Wilsoiiia, 398 

 Wimanella, 381 

 Witcliellia, 660 

 Wiwaxia, 137 

 Wooclücrimis, 223 

 Woitheiiella, 137 

 Worthenia, 524 

 Wortlieiiopora, 347 



Xantlio, 767 

 Xaiithopsis, 767 



Xeiiaspis, 645 

 Xenmter, 248 

 Xenoeidaris, 274 

 Xenocrinus, 193 

 Xenodiscus, 645 

 Xeiiophora, 543 

 Xestoleberis, 739 

 Xiphidiocaris, 751 

 Xiplioteutliis, 681 

 Xylobius, 793 

 Xylotrya, 501 



Yolioia, 732 

 Yoldia, 441 

 Yorkia, 376 



Zacantlioides, 716 

 Zaphreiitis, 83 

 Zeaerinus, 223 

 Zeilleria, 406 



Zellania, 405 

 Zemira, 557 

 Zenatia, 498 

 Zenkericrinus, 190 

 Zeuglopleiirus, 282 

 Zidona, 561 

 Zittelia, 553 

 Zittelisiwngia, 68 

 Zitteloceras, 603 

 Ziziphiniis, 532 

 Zonatiila, 326 

 Zonopora, 325 

 Zoopilu.s, 102 

 Zophocrimis, 158 

 Zugmeyeria, 403 

 Zurcheria, 660 

 Zygites, 524 

 Zygocriims, 172 

 Zygopleura, 537 

 i Zygospira, 408 



END OF VOL. I 



Printed by R. c^ R. Clark, Limited, Edinburgh. 



