SYSTEMATIC LIST. 



277 



DEVONIAN Continued. 



Genera and species. 



Mocliomorpha ohtusa, n. sp 



Goniophora perangulata Hall 



Palreoneilo, sp. ? 



Nucula Rescuensis, n. sp 



, sp.? 



Nuculites triangulus H. & W 



Bystactella insularis, n. sp 



Megambonia occidualis, n. sp 



Xyassa parva, n. sp 



Grammysia minor, n. sp 



Edmondia Pinonensis Meek 



Sauguinolites ? Combensis, n. sp 



'. linu-ilis, n. sp 



rigidus White &Whitfleld 

 (sp.). 



? Sanduskyonsis Meek 



vi-nti icosus White & Whit- 

 field (sp.). 



Conocardiuin Nevadeusis, u. sp 



. sp 



Lunulicardiuui li-igosuin Meek (sp.) 



Paracyclas occidentals 



peroccidens H. & W 



Posidonomya Devonica, u. ep 



he vis, n. sp 



Microdon (C.) macrostriatus, n. sp 



Cardiomorpba Missourieusis Swallow . . . 



Anadoutopsis aniygdaluifonnis, n. sp 



Schizodus (Cytherodon) orbicularis, n. sp. 

 Cypricardinia indent a Conrad, (sp.) 



GASTEROPODA. 



Platy ceras carinatum, Hall 



conicurn Hall... 



Conradi, n. sp 



dentalium Hall 



nodosum Conrad 



thetifonne, n. sp 



Thetis Hall 



undulatum, n. sp 



Platy ostoma lincatum Conrad 



sp.? 



Ecculioiuphalus Devouicus, n. sp. 



Euomphalus Eurekensis, n. sp 



(P.)laxus Hall 



sp.? 



Straparollus Newarkensis, n. sp. 



Pleurotomaria, sp. ? 



Platyschisma? ambiguum, n. sp. 



?McCoyi, n. sp 



sp.? 



X 

 X 



X X 

 X 



M. 



H. 

 M. 



.9 . 



P4g 



88 



Remarks. 



Schoharie Grit of New York. 



Geol. Expl. Fortieth Par., vol. iv, p. 248 



Geol. Expl. Fortieth Par., vol. iv, p. 46 



Chemung of New York, Burlington Sandstone of 



Iowa. 



Upper Held, of Ohio 



Chemung of New York, Burlington Sandstone of 



Iowa. 



Geol. Expl. Fortieth Par., vol. iv, p. 92 . 



Geol. Expl. Fortieth Par., vol. iv, p. 248 . 



Geol. Expl. Fortieth Par., vol. iv, p. 277. 



"Upper Held, of New York and the Falls of the Ohio. 



Up. Held, and Ham. of New York 



Up. Held, and Ham. of New York, and Up. Held. 

 Falls of the Ohio. 



Up. Held, of Niew York. 

 Up. Held, of New York . 



Up. Held, and Ham. of New York. 



Up. Helc^. and Ham. of New York, Canada, etc. 



Page. 



171 

 171 



172 

 172 



172 

 17S 

 173- 

 174 



Upper Held, and Hani, of New York . 



175 

 175 

 176 



176 

 177 



177 



178 



179 



178 

 180 



180 

 181 

 182 



182 

 182 



182 

 182 

 183 

 184 

 182 

 184 

 185 



187 

 185 

 186 



187 - 



188 

 188 



