438 GEOLOGY OF OHIO. 



Goniophora Phillips. 



G. perangulata H. aud W. 

 Paracyclas Hall. 



P. lirata Conrad. 



P. Ohioensis Meek=/ 5 . lirata Conrad. P. Occident alis H. 

 and W. 

 Modiomorpha H. and W. 



M. elliptical 



M. perovata Meek. 

 Sanguinolites McCoy. 



6'. Sanduskyensis Meek. 

 GASTEROPODA. 



Peatyceras Conrad. 



P. attenuatum Meek. 



P. bucculenium Hall. 



P. carinatum Hall. 



P. conicum Hall. 



P. dumosum Conrad. 



P. multispinosum Meek. 



P. squalodens Whitf. 

 Peatyostoma Conrad. 



P. lichas Hall. 

 Euomphalus Sowerby. 



E. Decewi H\\\ings=Pleuronohis Decewi Hall. 

 Turbo Klein? 



T. Kearneyi *H.oi\\=Pal<zotroc/ius Kearneyi. 



T. Shumardi D'Vern. 

 Isonema M. and W. 



/. bellatula ~H.all=Callo7iema bellatula Hall. 



/. depressum M. and W. 



/. humile Meek. 

 Xenophora Fischer. 



X. antiqua Meek. 

 Naticopsis McCoy. 



N. osquistriata Meek. 



JV. cretacea H. and W. 



N. levis Meek. 

 I,Oxonema Phillips. 



E. Eeda Hall. 



E. Hamiltonice Hall. 



E. pa vnhim Whitf. 



E. pexatum Hall. 

 Orthonema M. and W. 



O. Newberryi Meek. 



