Part II - State of New Jersey

Range ontsirle Xew ,Jersey-Delaware.ltype.-Burlington County ; BNSP 14420.Volutodenna ovata Whitfield 1892Plate 56, Figure 6 ; Plate 59, Figures 13, 14I'olatoder~sa ovata IVhitfield, 1892, p. 91, pl. 10, figs. 3-4.I'olutoderma ovata JVcller, 1907, p. 776, pl. 91, figs. 20-21.Description.-"Shell below a medium size, snbovate in general outline,being large above the middle of the length and attenuated to~vardthe base; spire short; its apical angle nearly 90' on the internal casts,with strong, rounded volutions and very deep, strongly marked sutures;body volotion proportionally large, forming nearly the bulk ofthe cast; greatest diameter a little below the shoulder and rapidlydiminishing below; aperture large, nearly straight on the inner margin,strongly rounded al~ove on the outer margin, and gently curved;tlong the lower two-thirds of the length; columella proportionallystrong, leaving a large cavity on removal, as seen in the cast; market1by two strong, very oblique plications or folds above the middle of itslength, the upper one of which is much the smaller; volutions market1by distant vertical folds only faintly seen on the cast, and only on theupper portions n7hen visible; on the inner surface of the cast, betweanthe volutions, the vertical plications are strongly marked, as in all tl~especies of the genus yet observed; but I have not seen any remains ofspiral lines as on most of them, still, I presume they have esiste(l."(Whit,field)Ren~arks.-Close to Vokcton~orpha gabbi JVhitfield hut the latterhas only one eolumellar fold while 1'. ouata has t\xro.Range in Nezc Jersey-MT. LBUREIJ-NAVESIXK : 37, 47, 53Type.-BInllicaIIill? N. J.; AhIXFI.Volutoderma jamesburgensis Weller 1907Plate 59, Figures 6, 7Vol~ctodert~~a ja~aesbzrrgensis Weller, 1907, p. 777, pl. 91, figs. 22-23.Deso.iption.-"Shcll of medium size. tl~c (limensions of the typespecimen being: height, 30 mm. ; masimum diameter, 17 mm. Volutionsitbout four in number, the spire of moderate height, apical angle about58O. Suture well defined; just below the suture is a rounded ridgemarked by conspicuous oblique costae about one millimeter apart onNEW JERSEY GEOLOGICAL SURVEY