INDEX TO PART I. 



(Synonyms in italics.) 



Page. 

 31 

 31 

 121 

 121 



Accrvnlariii 



peutagoua 



Acrochordrccras 



Hyatti 



Alveolites 25 



mnltilaiuella 25 



(iimlet. sp.) 26 



Ainnioiiitoid iorms of the Upper 



Triassic of Nevada 105 



AnatinidxE 10, 130 



Aucbura 160 



? fusiformis 103 



Ancjius undulatus 180 



Auisouiyoii 102 



sexsulcatus? 102 



Auomia rastiformis 141 



Anomiid^ 141 



AporrhaidvE 160 



Arcestes 119 



Gabbi 121 



. ? perplauus 120 



ArcestiDvE 119 



Arcid^ 134,148 



Articulata 20, 48 



Atbyris 81 



f persiuuata 81 



Eoissyi 82 



subtilita S3 



Atrypa 38 



reticularis 38 



AUKICULID^ 175 



Aviculopecten 93 



catactiis 93 



occidanens 90 



Utaheusis 95 



Axinaja 



Wyomingcusis.., 



Belemyites 



Nevadensis.. 

 BeLEMNITIDyE 



Page. 



149 



149 



.... 138 



... 138 



.... 138 



Braciiiopoda 35, 63 



Camiteloma 179 



uiacrospira 179 



(uudet.sp.) 181 



Campopbyllum 57 



Carboniferous species 50 



CARDIIDiE 151 



Cardiuu) curtum 151 



subcurtum 152 



Caruif'ex 187 



(Vortifes) Biuneyi 187 



Tryoui 188 



Cephalopoda 47, 98, 104, 138 



CERIPHASIlDiE 176, 193 



Clydonites 109 



Clydonitid^e 107 



Couocorypbe , 20 



(rtycboparia)Kiiigii.. 20 



Corbicula 107 



(Veloritina) Durkeei 107 



Corbula 170 



(Aulsorbyncbus?) Engel- 



maniii 174 



( Aui.sorbynchus) pyriformis. 170 



(undet. sp.) 150 



CoRBULlDyE 150, 170 



Coroceras 107 



Cretaceous species 140 



Crustacea 48 



Cucullsea .134,148 



645 



