721 



Plbu 



{Figure of Pleurotomaria Valeria ; page 720,) 



W C^ivaclci, TcoL FoSS, 



Pleurotomaria wortheni, Hall,Trans. Alb. Inst.Vol. 4,1856; 

 Iowa report, 1858, plate 23, fig. 13; Whitfield, Bull. 

 3, Am. Mus. Nat. Hist. 1882, plate 9, fig. 4; Collett's 

 Indiana Rt., 1882, page 356, plate 32, fig. 4, type 

 ^^ specimen. Somewhat like P. s;?Aoer^Z^^a of Conrad, 

 ^^ P. coronata^ Hall. Spergen Hill, etc., Ind. S^lh- 

 carhoniferous. XL 



Pleurotomaria ? Emmons in his Geology of the Second 



li^iiA^^?^^r^^ District of New York, 1842, page 393, gives 



fig. 102, 1, as common at Watertown, N. Y. 

 Trenton grey limestone. II o. 



Int/.18ffl,32 



Pleurotom.aria 



— ? H. D. Rogers in his Geology of 

 Pennsylvania, 1858, Vol. 2, page 833, gives 

 as fig. 691 a side view of a beautiful Pleu- 

 rotomaria from the Coal measures of the 

 State. Xlin 



P, valvatiformis^ M. and W. ; viola^ Bill.; virgo^ Bill. ; vir- 

 guuGula^ Bill.; vitruvia^ Bill.; voltumna^ Bill.; whiteiy Win- 

 chell. (S. A. M.) 



