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Part II - State of New Jersey

Part II - State of New Jersey

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in length; very globose, the diameter being nearly as great as the height,at least equaling seven-eighths <strong>of</strong> the height. Spire low and rounded,and the base only slightly more pointed. Volutions between three andfour in number, the outer half <strong>of</strong> the last one more abruptly deflecteddownward at the suture than the preceding ones, but again elevateduear the aperture. Aperture narrow, pointed above and widest belowand ronnded ; the length equal to about four-fifths <strong>of</strong> the entire length<strong>of</strong> the shell; columellar margin thickened and marked by horizontalridges on the upper two-thirds <strong>of</strong> its length, and by two very strong,ridge-like teeth or plications below the middle, the npper <strong>of</strong> which isthe stronger. Base and outer lip slightly thickened. Snrfaee <strong>of</strong> theshell, as shown on the cast, marked by fine spiral lines, and by transverselines <strong>of</strong> gromth. Of the spiral lines about 30 may be counted onthe outer half <strong>of</strong> the body whorl <strong>of</strong> the larger individual, those near thehnsc being coarser than tl~ose above, but gradually becoming fainterin strength. On one <strong>of</strong> Dr. Morton's types the transverse lines are regularand but little less strongly marked than the spiral lines, so thatthe surface under a glass looks to be cut up into small nearly equalsolid nodes." (Whitfield)Range in <strong>New</strong> <strong>Jersey</strong>-MERCHANTVILLE : 15NAVESINE : ?Range outside <strong>New</strong> <strong>Jersey</strong>-Delaware.Type.-<strong>New</strong> <strong>Jersey</strong> ANSP 197027Avellana pelagana Stephenson 1936Plate 43, Figure 16Avellana pelagana Stephenson, 1936, Bull. Geol. Soc. Amer., vol. 47,p. 403, pl. 5, figs. 19-20.Avella~~a pelagana Richards, 1943, p. 28, pl. 5, fig. 18.Description.-"Shell <strong>of</strong> medium size, rotund, broadly roundedover the apex. Spire very low. Protoconch not well preserved. Whorls354, closely appressed, expanding rapidly; sides <strong>of</strong> whorls broadlyrounded. Suture slightly impressed. Body whorl broadly and regularlyrounded, uniformly ornamented with about 26 regular, low,round-crested, faintly punctate spiral ribs, separated by narrower,punctate inter-spaces, the punctate markings are fine and obscurelypreserved and do not show in the figures; 5 or 6 <strong>of</strong> the ribs are exposedon the penultimate whorl.Aperture subcreseentic, acutely subangular at the rear, where it isnarrowly channeled, moderately wide in the central part, sharply butregularly rounded at the front. Outer lip thick, regularly varicose, theposterior cnd <strong>of</strong> the varix rising a little above the suture; inner marginsmooth. Inner lip, broadly excavated anteriorly, forming a thin callusNEW JERSEY GEOLOGICAL SURVEY

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