Cookia sulcata

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Cookia sulcata
Cookia sulcata (Cook's turban) Catlins.JPG
Dorsal view of a shell
Cookia sulcata (Cook's turban) Catlins (underside).JPG
Umbilical view
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Turbinidae
Genus: Cookia
Species:
C. sulcata
Binomial name
Cookia sulcata
(Gmelin, 1791)
Synonyms [1]
  • Astraea cookii(Gmelin, 1791)
  • Astraea sulcata(Martyn, 1784)
  • Astralium (Cookia) sulcatumMartyn, 1784
  • Bolma (Cookia) sulcata(Gmelin, 1791)
  • Cookia nobilisLesson
  • Cookia novaezelandiaeLesson, 1832
  • Trochus cookiiGmelin, 1791
  • Trochus sulcatusGmelin, 1791
  • Trochus sulcatusMartyn, 1784 (rejected name)

Cookia sulcata, or Cook's turban, is a species of large sea snail, a marine gastropod mollusc in the family Turbinidae, the turban snails. [1]

Contents

Operculum Cookia sulcata operculum.JPG
Operculum

Description

Juvenile Cookia sulcata 01.jpg
Juvenile

The length of the shell varies between 50 mm and 90 mm. The large, imperforate, rather thin shell is conic. The periphery is rounded. The spire is more or less elevated. The sutures are deeply impressed. The seven whorls are well rounded, with close lamellose incremental striae, and corrugated by obliquely descending subtuberculose folds. The base is flattened bearing concentric densely squamose lirae, deeply concave in the center, and indented in the place of the umbilicus. The aperture is transversely oval, very oblique, pearly and somewhat corrugated within. The thin columella is arcuate. The umbilical region and part of base is covered with a thin callus. The operculum is brownish or white inside.

The median tooth of the radula has a long basal plate and a short body. It bears no cusp, and has small supporting wings. The first lateral also is much like that in Pomaulax. The others bear cusps. The inner marginal is very broad, with wide cusp. The cusps of outer marginals are simple. [2]

Distribution

This marine species occurs off New Zealand.

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<i>Bolma bartschii</i> Species of gastropod

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<i>Bolma henica</i> Species of gastropod

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References

  1. 1 2 Bouchet, P. (2012). Cookia sulcata (Lightfoot, 1786). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=413403 on 2012-03-15
  2. G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia (described as Astralium (Cookia) sulcatum)

Further reading