Clanculus tonnerrei

Clanculus tonnerrei is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[2]

Clanculus tonnerrei
Drawing of a shell of Clanculus tonnerrei
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Clanculus
Species:
C. tonnerrei
Binomial name
Clanculus tonnerrei
(G. Nevill & H. Nevill, 1874) [1]
Synonyms[2]
  • Clanculus (Clanculopsis) tonnerrei (G. Nevill & H. Nevill, 1874)
  • Clanculus assabensis Caramagna, 1888
  • Clanculus gennesi (H. Fisher & Vignal, 1901)
  • Clanculus gibbonsi G.B. sowerby III, 1912
  • Clypeomorus gennesi (H. Fischer & Vignal, 1901)
  • Euchelus erythraeensis Sturany, 1903
  • Trochus satrapius von Martens
  • Trochus tonnerrei G. Nevill & H. Nevill, 1874 (original description)

Description

The height of the shell attains 14 mm, its diameter ​14 1⁄2 mm. The umbilicate shell has a conoidal shape. It is granulate-cingulate with the cinguli unequally elevated. The smaller ones are interpolated, numbering 5 to 6 between suture and the periphery, 7 to 8 on the base of the body whorl obtusely angulated. The granules are rosy-red colored with white subalternating. The suture is moderate. The very oblique aperture is subquadrangular. Its fauces is sulcate, corresponding to the ridges of the exterior. The outer margin is obtuse and subcrenulated. The basal margin is plicatulate. The columella is disjoined and prominently denticulate above, oblique, with 1 or 2 tubercles where it joins the basal margin. The white umbilicus is narrow. Its margin is not crenate, with an elevated fold within the periphery.[3]

Distribution

This species occurs in the Red Sea and in the Indian Ocean off Djibouti, the Mascarene basin, Kenya, Mozambique and Tanzania.

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References
  1. Nevill, Journ. Asiat. Soc. Beng., 1874, p. 27, t. 1, f. 3, and I. c. 1875, p. 103.
  2. Clanculus tonnerrei (G. Nevill & H. Nevill, 1874). Retrieved through: World Register of Marine Species on 29 June 2011.
  3. H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Trochus satrapius)

Further reading
  • Drivas, J. & M. Jay (1988). Coquillages de La Réunion et de l'île Maurice
  • Herbert D.G. (1996). Observations on Clanculus tonnerrei (G. Nevill & H. Nevill, 1874) (Mollusca Gastropoda Trochidae). Tropical Zoology 9:31–45
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