404 Procccdiiujs of the Ohio State .Iccidoiiy of Science. 



the body-vulLniun by a dinible series of rounded nodes, those on 

 one side of the center ahernating with those of the other side, 

 and the inner margins of the two series interlocking with each 

 other. Aperture broadly elliptical, strongly modi tied by the 

 projection of the preceding volution, on the inner margin. 

 Auriculations largely developed and slightly reflected. Axis 

 very distinctlv perforate. Inner lip somewhat callous on the 

 protruding inner volution. Surface of the shell, so far as can 

 be ascertained, marked only by lines of growth, beyond the 

 nodes mentioned [Whitfield. 1895].'" 



Horizon and locality. — Maxville limestone. 

 Unknown zone: White Cottage (Type specimen). 



BELLEROPHON SUBLAEVIS-Hall. 



1856. Bellerophon sublccvis. Hall, Trans. .-Mbany Inst., Vol. IV, p. 32. 

 St. Louis limestone: Spergen Hill and Bloomington, Indiana; 

 Alton, Illinois. 

 1858. Bellerophon suhlcevis. Hall, Geol. Surv. Iowa, Vol. 1, pt. II, p. 

 666, pi. 23, figs. 15a-c. 

 Warsaw limestone: Above Alton, Illinois; Spergen Hill and 

 Bloomington, Indiana. 

 1882. Bellerophon sublavis. White, Ind. Geol. Nat. Hist., 11th Ann. 

 Rep., p. 359, pi. 40, figs. 5-7. 

 St. Louis group: Elletsville, Indiana. 



1882. Bellerophon suhlcevis. Whitfield, Bull. Am. Mus. Nat. Hist., Vol. 



I, p. 89, pi. 8, figs. 6, 7. 

 St. Louis group : Spergen Hill, Bloomington, Paynter's Hill and 

 Elletsville, Indiana ; Alton, Illinois. 



1883. Bellerophon siiblcrvis. Hall, Ind. Geol. Nat. Hist., r2th Rep., p. 



371, pi. 3, figs. 6-7. 

 St. Louis group: Alton, Illinois; Spergen Hill, Lanesville and 

 Bloomington, Indiana. 

 1886. Bellerophon sublccvis. Claypole, Proc. and Coll. Wyo. Hist, and 

 Geol. Soc, Vol. II. pt. li, p. 246. 

 Lower Coal Measures : Wilkesbarre, Pennsylvania. 

 1891. Bellerophon sublavis ? Whitfield, Ann. N. Y. Acad. Sci., Vol. V, 

 p. 592, pi. 14, figs. 20, 21. 

 Maxville limestone : Newtonville and Maxville, Ohio. 

 1894. Bellerophon sublccvis. Keyes, Mo. Geol. Surv., Vol. V, p. 148. 

 St. Louis limestone : St. Louis, Missouri. 



