The Nautilus, Vol. 9: A Monthly Journal Devoted to the Interests of Conchologists; May, 1895, to April, 1896 (Classic Reprint) - Softcover

Pilsbry, H. A.

 
9780282851217: The Nautilus, Vol. 9: A Monthly Journal Devoted to the Interests of Conchologists; May, 1895, to April, 1896 (Classic Reprint)

Inhaltsangabe

Excerpt from The Nautilus, Vol. 9: A Monthly Journal Devoted to the Interests of Conchologists; May, 1895, to April, 1896

Shell fiat, whorls six, apical one smooth, the balance with a beaded spiral boundary followed closely by a smaller spiral likewise beaded, two faint Spirals near suture; lines of growth fine, coarser nearer aperture, the side of the body-whorl forming an acute angle wit-h the top and nearly a right angle with the base; the side is Slightly convex, with a_ granular raised line immediately below the periphery and two fainter ones near the base; the basal keel beaded umbilicus wide, marked with two or three beaded lines. Aperture wedge-shaped, narrower at junction with body-whorl. Max. Diameter 19 mm., elevation 6 mm.

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