396 f'rucrrdiiif/s of the Oliia Shitc . Icadcuiy of Sciriicc. 



"l.enj^lli. 5 j/>> iiiche.-^ : widlli near tlie aperture, 7/16 inch 

 jWortliern, i8(jo|."' 



Fig. 21. — JJcufaliinii Ulinolensc. An imperfect specimen. 



Horirjoit and locality. — Maxville limestone. 

 -Lower zone : Ctit Xo. 4, ^It. I'erry-Fnltonham. 



CLASS GASTROPODA. 



STRAPAROLLUS SIMILIS— Meek and Worthen. 



1861. StraparoUus siiiiilis. Meek and Worthen, Proc. Acad. Nat. Sci. 

 Phil., p. 14.5. 

 St. Louis limestone: Waterloo, Illinois. 

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

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

 St. Louis group: W^aterloo, Illinois. 

 1891. StraparoUus siinilis. Whitfield, Ann. N. A'. Acad. Sci., Vol. V, 

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

 Maxville limestone : Newtonville and near Maxville, Ohio. 

 4895. StraparoUus siuiiUs. Whitfield, Geol. Surv. Ohio, Vol. VII, p. 

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

 Maxville limestone: Newtonville and near Maxville, Ohio. 

 1897. StraparoUus siuiilis (?) Weller, Trans. N. Y. Acad. Sci., Vol. 

 XVI, p. 270. 

 Batesville sandstone: Batesville, Arkansas. 



