290 



INDEX. 



DEVONIAN Continued. 



Fossils of 99 



Ichthyio fauna of 7 



Number of genera and species in 9 



DICELI.OCEPHALUS 40,89 



angustifrons 43 



bilobaius 4O 



? expansus 45 



finalis 3,71,89,90 



flabellifer 268 



inexpectans 3, 9O 



lole 43 



Marica 44 



nasntns 4O 



Osceola 3,40 



quadriceps 45 



Richmoudensis 41 



DiPHYniYLLUM Simcoense 1O5 



DISCIXA 112,213 



conuata 214 



Lodensis 5, 113,113 



media 112,113 



minuta 113 



Missouriensis 213 



N</wberryi 8,313,214 



nitida 113,313,214 



sp. ? 113,268,279 



(Orbicula) Newberryi 213 



DYSTACTELLA 172 



insularis 173 



subnasuta 173 



ECCULIOMPHALUS 187 



Bucklandi 187 



Devonicus 187 



minor 187 



ECHIXODERMATA 212 



EUMONDIA 245 



? bicarinata 176 



Burlingtonensis 245 



? circularis 346 



Medou 345 



Pinonensis 164, 277 



ESDOCEKAS multitubulatum 87 



proteiforme 86 



EUOMPHALUS 185, 255 



conies 186 



Eurekensis 185 



laxus 186 



rugosus 255 



sp.? 277 



(Ecculiomphalus) laxus 186 



^Phanerotinus) laxus 186 



EUOMPHALUS Continued. 



(Straparollus) Hecale 186 



(Straparollus) subrugosue 355 



FAUNA, Devonian, Summary of o 



Fresh-water, in Lower Carboniferous 8 



Ichlhyic, of the Devonian 7 



of Lower Pogonip group, relations 4 



of Middle Pogonip group 3 



of Upper Pogonip group, like Lower Trenton ... 3 



Pecularities of "White Pine shale 5 



Passage, between Cambrian and Silurian 3 



FAVOSITES? Argus 101 



basaltica j QO 



bemispherica 1OO 



n.sp 1O1 



FKXKSTELLA sp. 1 274, 279 



FlBTULIPORA sp. ? 1O1 



FOSSILS, Cambrian n 



Carboniferous 212 



Devonian 99 



Lower Silurian 03 



Potsdam, of Wisconsin, occurring in Nevada 3 



FrsitiXA c.vlindrica 279 



robusta 279 



GASTEROPODA 73, 182, 254 



GENERA AND SPECIES, Number of, in Paleozoic forma- 

 tions of Central Nevada 9 



GEOLOGIC HORIZON, Table showing number of gen- 

 era and species in each, in Central Nevada 9 



GLYPTODESMA sp. ? 276 



GOMPHOCEBAS 202 



oviforme 202 



raphanus 202 



suboviforme 3O3 



sp. ? 281 



GONI ATITES 203 



desideratus 3O3 



Kingi 278 



sp.? 278 



GOXIOPHORA ^ 171 



pcrangulata 1 71 , 195 



GRAMMYSIA 174, 244 



arcuata 8, 226, 345 



Hannibalensis 8, 175, 226, 344 



minor 174 



(Leptodomus ?) arcuata 245 



GRAPTOLITHUS sp. ?! 270 



GRIFFITHIDF.S 266 



Porttocki 366 



GROUP, Pogonip 65 



Prospect Mountain 11 



GYPIDULA, snbgenus 159 



occidentals 159 



