•396 Proceedings of the Ohio State Academv of Science. 



"Length, 5 y/^ inches; width near the aperture, 7/16 inch 

 J^Worthern, 1890]." 



I"iG. 21. — Deutalium lUinoieiise. An imperfect specimen.- 



Horizon and locality. — Maxville Hmestone. 

 -iLower zone:: Cut No. 4, Mt. Perry-Fultonham. 



CLASS GASTROPODA. 



STRAPAROLLUS SIMILIS— Meefc and Worthcn. 



"'1861. StraparoUus similis. Meek and Worthen, Proc. Acad. Nat. Sci. 

 Phil., p. 145. 

 St. Louis limestone : Waterloo, Illinois. 

 1866. StraparoUus similis. Meek and Worthen, Geol. Surv. 111., Vol. 

 II, p. 285, pi. 19, figs. 4a, b. 

 St. Louis group : Waterloo, Illinois. 

 :i891. StraparoUus similis. Whitfield, Ann. N. Y. Acad. Sci., Vol. V, 

 -p. 589, pi. 14, figs. 9-11. 

 Maxville limestone : Newtonville and near Maxville, Ohio. 

 -1895. StraparoUus similis. Whitfield, Geol. Surv. Ohio, Vol. VII, p. 

 476, pi. 10, figs. 9-11. 

 Maxville limestone : Newtonville and near Maxville, Ohio. 

 1897. StraparoUus simiUs (?) Waller, Trans. N. Y. Acad. Sci., Vol. 

 XVI, p. 270. 

 Batesville sandstone : Batesville, Arkansas. 



