Abstract
Shell conical, moderately long, with perhaps a rudimentary umbilicus. The complete spire would consist of about 10 whorls, which increase under a regular angle. The surface of the apical whorls in this specimen is not well preserved, but the five anterior whorls are in good condition; they are smooth, somewhat tumid towards the centre, and separated by a suture of moderate depth. Wavy longitudinal lines, apparently lines of growth, are observed, but there is no trace of any other ornament. Base of body-whorl smooth and almost polished, except where there has been a decortication of the outer layer of shell. This decortication, besides affecting a considerable area near the outer lip, has formed a belt in the posterior region of the base, thus producing a sort of false carination. In this way we learn that both inner and outer layers of shell were of considerable thickness. (N.B.—The shell is now mainly in the condition of spathic iron, coated and coloured with brown oxide).
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