Calliostoma gualterianum

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Calliostoma gualterianum
Calliostoma gualterianum 001.jpg
Drawing of a shell of Calliostoma gualterianum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Calliostomatidae
Genus: Calliostoma
Species:
C. gualterianum
Binomial name
Calliostoma gualterianum
(Philippi, 1848) [1]
Synonyms
  • Trochus gualterianusPhilippi, 1848 (original description)
  • Trochus gualtierianusFischer [2]
  • Trochus gualteriiWeinkauff [3]

Calliostoma gualterianum, common name Gualtieri's top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. [4]

Contents

Description

The size of the shell varies between 10 mm and 17 mm. The imperforate, polished, solid shell has a conical-elevated shape with 9 whorls. It is yellowish-brown or olive, clouded with brown, the earlier 4 whorls dark bluish or greenish. The shell is spirally sulcate, the 2d whorl somewhat granulate. The rest of the whorls are smooth, flat, and with a narrow supra-sutural fasciole, which on the body whorl is not developed. The periphery is rounded angular. The base of the shell is smooth except for about 4 fine riblets around the axis. The aperture is smooth within. The nacreous columella is a trifle swollen at its base, and either purple or whitish inside. [5]

Distribution

This species occurs in the Mediterranean Sea.

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References

  1. ↑ Philippi., in Conchyl. Cab., p. 69, t. 13,'f. 15.
  2. ↑ Fischer, Coq. Viv., p. 404, 1. 119, f. 5.
  3. ↑ Weinkauff, Conchyl. des Mittelm. ii, p. 361
  4. ↑ Calliostoma gualterianum (Philippi, 1848) . Retrieved through: World Register of Marine Species .
  5. ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
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