VIII CONTENTS. 



Page. 



PharellaPealei.-.. 496 



Corbula nematophora 496 



Neritiua bollatula 497 



patelliforuus , 498 



carditoides 499 



Banuistei'i 499 



pisum 500 



pisiformis 500 



Admete rlioraboides 501 



gregaria 501 



subfusiformis 502 



Turritella Coalvillensis 502 



spii'ouema 503 



microneiua 504 



FususGabbi 504 



Utaheusis , 505 



Turbonilla Coalvillensis , 505 



Eulima funicnla 506 



cbrysallis 506 



incoiispicua 507 



Melampus autiquus 507 



Valvata nana 507 



Pliysa Carletoui , 508 



Ostrea Wyoniingcusis 508 



Auomia grypborbynchiis 509 



Cotbicula cytheriformis 511 



Bannisteri 513 



Corbula imdifera 513 



tropidophora ' 514 



Goniobasis insculpta 515 



Melauia Wyomiiigensis 516 



Physa Bridgerensis 516 



Limnea compactilis 517 



Pupa Leidyi 517 



Fossil Eeptiles: 



Diplocynodus polyodon 614 



Trionyx beteroglyptus 616 



scutumantiquum 617 



Plastomenus multifoveatus 619 



Baiina j)ouderosa 624 



Emys euthnetus 688 



megaulax 628 



pacbylomiis 629 



Fossil Fishes: 



Clastes anax 633 



PappicbtyS; gen. nov 634 



plicatus 635 



sclerops 6S5 



laevis 636 



sympbysis 636 



Corsonii 636 



Pbareodon scriceus 638 



Khineastes radulus 639 



calvus 640 



arciiatus 641 



