CONTENTS. xix 



Page. 



Supplement to Part First — The Amyzon Shales 742 



Pisces 745 



Halecomorphi 745 



Amia 745 



Amia scutata 745 



dictyocephala 745 



Nematognathl 747 



Ehineastea 747 



Ehineastes pectinatus 747 



Plectospondyli 748 



Amyzon 748 



Amyzon men tale 749 



commune 749 



pandatum 750 



fusiforme 751 



Percomorpbi 752 



Trichophanes 752 



Trichophanes foliarum 753 



hians 753 



Aves 754 



GraUiB 755 



Charadrius 755 



Charadrius sheppardianns 755 



PART SECOND. 



The White River and John Day FACNiE 760 



Reptilia 761 



Testudinata 762 



Testudo 762 



Testndo cultratns 763 



qnadratns 704 



laticuneus 765 



ligonius 766 



amphithorax 767 



Stylemys 769 



Stylemy s nebrascensis 769 



Lacertilia 770 



Peltosaurus 771 



Peltosaurus granulosus 773 



Exostlnus 775 



Exostinus serratua 776 



Aciprion 776 



Aciprion f ormosum 776 



Diacium 777 



Dlaciam quinquipedale 777 



Platyrhacliis 777 



Platyrhachis coloradoensis 778 



unipedalis 779 



rliambastes 779 



Cremastosaurns 780 



Cremastosaurus carinicollis 781 



Ophidia 781 



Aphelophis - 781 



Aphelophis talpivoms 782 



