Pleu. 



718 



Pleurotomaria swallovana, Hall, Trans. Alb. Inst. Vol. 4, 



Xl^^^^smmsL ^. 1856.— Whitfield, Bull. 3, Amer. Mus. 



Nat. Hist. 1882, pi. 9, figs. 1, 2.— Col- 



lett's Indiana Kt. 1882, p. 365, pi. 32, 



figs. 1, 2, enlafged four times^ top and 



no(.ISS7.. PI. 3j^. side of specimen from Spergen |Hil], 



and at several other places in Indiana it is found. Subcar- 



ioniferous. — XL 



Pleurotomaria sybillina, Bill. 



Pleurotomaria tabulata, (Hall. Iowa Report, part 2, p. 



Vjii c4- ^^ 721, pi. 29, figs. 12, 



^m ^ta_ A. ^^ ^^^ OoUett's 



Indiana Report of 

 1883, p. 160, pi. 

 32, figs. 4, 5, 

 natural size^ 

 opposite views of 

 a large specimen, 

 kno w n in the 

 Up per Coal 

 Measures of the 

 west from Indian a 

 \\'\>/> to lo w a. — In S. 

 W. Pennsylvania also, Stevenson's Report K3, p. 310. — XV. 



P. taggarti, Meek. — P. tectoria, Winchell. — P. tenui 

 cincta, M. and W. 



Pleurotomaria tenuimarginata. See Botrochus concavus. 

 P. tenuistriata, Shumard. Tr. St. Louis Ac. 

 Pleurotomaria textiiigera. Meek. Proc. Acad. Nat. Sci- 



Phila. 1871.— Pal. Ohio, Vol. 2, 

 1875, p. 314, pi. 13, fig. la-, 

 mainly an internal cast, but 

 shows indistinct remains of 

 surface markings; 75, gutta- 

 percha cast of upper part of a 

 spire of this shell taken in a 

 natural mold, showing the 

 shai p lines of growth. Supposed by Meek at first to be Hall & 

 Whitfield's P. mississipiensis. from the Burlington limestone- 

 It is abundant in the Waverly strata at Medina, Ohio. — X. 



fcfL 



7 Ohio\ 



