Part II - State of New Jersey

GASTROPODAswollen or convex in the upper part, and prolonged and attenuated below,forming a long, gracefully tapered anterior beak with the columellaslightly twisted ; top of the volution rather suddenly contracteclto the suture; aperture large, very elongate-elliptical in outline andprolonged below, where it becomes narrowed as the outer lip approachesthe axis; columella slightly twisted and marked by from one to threevery oblique folds, the middle one of which is usually the strongest;surface of the casts usually smooth, with the exception of, in some casesonly, a few distant vertical folds on the upper ones, and on the extremeupper part of the body volution; but where the external features arepreserved, the whole shell is marked by strong, rounded, vertical folds,and but little less strongly marked, rounded, spiral ridges; the spiralridges moderately distant on the upper part of the volution, but becomingless strongly marked and crowded, and finally almost obsolete,toward the base." (Whitfield)Re11wrks.-"Only a single true coli~mellar fold has ever been notedin any of the individuals properly referable to this species, and it isexceedingly doubtful if Whitfield was correct in his observation thatthe columella is marked by from one to three very oblique folds."(Gardner)Range in New Jersey-MACOTHY: 5WOODBURY: PMT. LAUREL-NAVESINK: 37, 41, 43,46, 47, 49, 50, 53VINCENTOWN : (Vineentown)Range outside New Jersey-Delaware, Maryland.Type.-Crossmicks, N. J. ; ANSP 14375; Mullica Hill, N. J.; ANSP14374 (type of Volutomorpha gabbi).Volutomorpha ponderosa Whitfield 1892Plate 60, Figure 2Volutomorpha ponderosa Whitfield, figs. 5-6; pl. 9,figs 13-15.Volutonsorpha ponderosa Weller, 1907, p. 161, pl. 95, figs. 1-2.Description-"Shell large and moderately ventrieose, attaining aLength of 7 or more inches, with a transverse diameter of nearly orquite 2% inches; spire moderately elevated, with depressed convexwhorls; volutions five or more, the last one forming nearly or quitethree-fifth of the entire length, gently convex throughout the upperthree-fourths of its lengt,h and slightly narrowed and extended infront; sutures between volntions only moderate; surface, as seen oncasts, usually smooth, but sometimes showing both vertical and spiralNEW JERSEY GEOLOGICAL SURVEY