NUCULA. 



474 



X///J 



HalU Starts, t^p^ 



Nuculana arata.^(iVi^wfe arata)^ Hall, Stanbury's Ex- 

 pedition to Great Salt Lake, 1852, page 

 413, plate 2, fig. 5 5, right valve, front 

 end broken oiF; a^ hinge, beaks, back 

 lunule; a beautiful shell, occurring 

 with Terehratuloe^ SpirifercB and Pro- 

 ductus in the Western coal measures. 

 In S. W. Pennsylvania recognized by J. J. Stevenson in the 

 DecTtef's creek shale, under the Mahoning sandstone, at Mor- 

 gantown, W. Va. Report L. p. M.—XIIL 



Nuculana bellistr lata. {Leda helUstriata^ Amer. Jour. 



Sci. Vol. 25, 1858, page 261.) Collett's 

 Indiana Report of 1883, page 146, plate 

 31, figs. 8, 9, somewhat enlarged^ left side 

 and hinge views. Occasionally nearly an 

 inch long, but usually much less. Roof 

 shales of coal M, in several counties, Ind. 

 In Pennsylvania, occurs in the Ferriferous 

 limestone of Mercer and Butler counties, 

 Q3, p. 25, V, p. 146. Also, in the Black 



Fossiliferous limestone of the Barren measures of Fayette Co. 



K3, p. 310; L, p. m,—XlII, XIV. 



Nuculana'(Ze^(35) diversa, Hall, Vol. 5, part I, page 329, 



/i- : XLvn3'2|plate 47, fig. 32 (selected from figs. 31 to 37). 



Claypole's specimen 5-89, in the Hamilton beds 



* 

 of Perry Co., Pa. Report F2, preface, p. xiv. — 



Wai^^AU.y\ VIII G. 



Nuculana {Leda) rostellata. Hall, Pal. N. Y., Vol. V, 



^^., enlarged twice .)i\iQ^ 



common form; fig. 



44, enlarged three 

 u .7-^^^^^— , 7^^^^^^^^- times (copied by Van 



Iterson). Recognized 

 in Claypole's specimens 103-1, 2, 4, Penn township, Perry Co., 

 Pa., Uppermost Chemung beds. VIII IX. 



Nuculana ? In Chemung bed No. 41 of Section 63, 



N. Br. R, R. from Hartville to Wapwallopen, Luzerne Co., Pa., 

 1000 feet above the Genesee slate. G7, p. 197. — VIII g. 



