Tegula quadricostata

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Tegula quadricostata
Tegula quadricostata 001.png
Drawing of an apertural view of a shell of Tegula quadricostata
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Tegulidae
Genus: Tegula
Species:
T. quadricostata
Binomial name
Tegula quadricostata
(W. Wood, 1828) [1]
Synonyms
  • Chlorostoma quadricostatum(W. Wood, 1828)
  • Monodonta catenifera Pot. & Mich.
  • Trochus quadricostatusW. Wood, 1828 (original combination)
  • Trochus torulosusPhilippi

Tegula quadricostata is a species of sea snail, a marine gastropod mollusk in the family Tegulidae. [2]

Contents

Description

The size of the shell varies between 15 mm and 30 mm. The thick, solid, umbilicate shell has a conical shape and has a blackish color. The spire is conoidal. The apex is rather blunt. The sutures are canaliculate. The six whorls are encircled by four coarsely tuberculose ribs on the upper surface ; the upper two contiguous, sometimes coalescent. The base of the shell shows 3 or 4 separated smaller beaded ribs, the broad interstices both above and below densely, finely spirally striate. The periphery is obtusely angular. The base is nearly flat. The oblique aperture is smooth within. The oblique columella is sinuous and bidentate. The umbilicus is surrounded by a white callus, bearing inside a strong spiral rib which terminates in a denticle about the middle of the columella. [3]

Distribution

This species occurs in the Pacific Ocean between Peru and Chile.

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References

  1. ↑ Wood, Ind. Test. Suppl., t. 5, f 1(3
  2. ↑ Bouchet, P. (2013). Tegula quadricostata (W. Wood, 1828). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=718896 on 2013-12-30
  3. ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Chlorostoma quadricostatum)
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