The Nautilus, Vol. 18

The Nautilus, Vol. 18 : A Monthly Journal Devoted to the Interests of Conchologists; May, 1904, to April, 1905 (Classic Reprint)

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Excerpt from The Nautilus, Vol. 18: A Monthly Journal Devoted to the Interests of Conchologists; May, 1904, to April, 1905
Shell broadly and deeply umbilicate, low-trochiform, dull yellow ish-brown, finely striate, the last Striae on the last whorl broken into low granules, which when quite unworn bear short cuticular laminae in places. Spire convex-conic. Whorls 6% to 7, slightly convex, Closely coiled, and very slowly widening, the last whorl obtusely subangular at the periphery, and descending a little in front, very convex beneath. Aperture very oblique, rounded, about one-fourth of the circle excised at the parietal wall. Peristome thin, narrowly expanded, reflexed below. Alt. Diam. Width of umbilicus 3 mm.
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Product details

  • Paperback | 178 pages
  • 152 x 229 x 10mm | 245g
  • Forgotten Books
  • United States
  • English
  • , black & white illustrations
  • 024316811X
  • 9780243168118