398 I'rocCi'diuijs of the OJiio State .Icadcmx of Science. 



limestone, and is found in j^reat numbers in tlie sliale-nodular 



zone. 



Horicoii ami locality. — Alaxville limestone. 



Upper zo!ie : Mouth of Buckeye Fork. Fultonliam ; Gladstone 

 Mills, IJelow Thompson Residence?, White Cottage; .'^^mith 

 Chapel. Logan. 



Shale-nodular zone: Cut No. 5, Mouth of Hough Hollow, Mt. 

 Perry-Fultonham ; Kroft Residence, Kroft Bridge, White 

 Cottage : Stimmel Residence, Alaxville ; Smith Chapel, 

 Logan. 



Undetermined zone: Middle of Cut Xo. 6, ^^It. Perry-Fulton- 

 ham. 



HOLOPEA NEWT0NENSIS-^3C^hitfieId. 



1882. Holohea Nczctoiicnsis. Whitfield, Ann. X. Y. Acad. Sci., Vol. II, 

 p. 224. 

 Maxville limestone : Xevvtonville, Ohio. 

 1891. Holopca A^ezvfonensis. Whitfield, Ann. X. Y. Acad. Sci., Vol. V, 

 p. oOl, pi. 14, fig. 12. 

 Maxville limestone : Xewtonville, Ohio. 

 1895. Holopea Newtonensis. Whitfield, Geol. Surv. Ohio, \'oI. MI, p. 

 477, pi. 10, fig. 12. 

 Maxville limestone: Xewtonville, Ohio. 



Description. — "Shell of medium size, ovate in outline and 

 Tcntricose, with a moderately elevated spire and extremely ven- 



FiG. 2:B. — Holopea ucwfoiioisis. Lateral view. (z\fter Whitfield.) 



tricose volutions, which increase very rapidly in bulk from the 

 apex. \'olutions three and half to four in number, with strongly 

 rounded surfaces and moderate sutures. Apical angle about 



