Astraea heliotropium

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Astraea heliotropium
Astraea heliotropium.JPG
Status NZTCS NT.svg
Not Threatened (NZ TCS) [2]
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: Astraea
Species:
A. heliotropium
Binomial name
Astraea heliotropium
(Martyn, 1784)
Synonyms [3]
  • Astralium heliotropium(Martyn T., 1784)
  • Guildfordia heliophorusGray
  • Imperator aureolatusMontfort, 1810
  • Lithopoma heliotropium(Martyn, T., 1784)
  • Solarium radiatumFischer von Waldheim, G., 1807
  • Trochus heliotropiumMartyn, 1784 (basionym)
  • Trochus imperialisGmelin, 1791

Astraea heliotropium, common name the sunburst star turban or the circular saw shell, is a large sea snail, a marine gastropod mollusc of the family Turbinidae, the turbans and star snails. [3]

Contents

This large species was brought to Europe for the first time by the famous Captain Cook. [4]

Shell description

The height of the shell is up to 60 mm, and the width is up to 120 mm. The large shell has a depressed-conic shape. Below widely it is umbilicate and concave. The spire is dome-shaped, and consists of 5 convex whorls. The suture is rendered zigzag by the prominent compressed triangular recurved vaulted spines which arm the acutely carinated periphery. The whorls above and below contain numerous spiral series of granules. The wide umbilicus is deep, and coarsely obliquely striate within. The aperture is transversely oval, oblique, pearly within. The peristome is continuous. The columella is slightly dilated, impinging upon the umbilicus. The color pattern is brownish or purplish above, light below. [4]

Distribution

This marine species is endemic to New Zealand. [1]

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References

  1. 1 2 Mollusc Specialist Group (2000). "Astraea heliotropium". IUCN Red List of Threatened Species . 2000: e.T2218A9364042. doi: 10.2305/IUCN.UK.2000.RLTS.T2218A9364042.en . Retrieved 18 November 2021.
  2. ↑ Funnell, Greig; et al. (January 2023). Todd, Amanda (ed.). Conservation status of indigenous marine invertebrates in Aotearoa New Zealand, 2021 (PDF) (Report). New Zealand Department of Conservation. p. 38. ISBN   978-1-99-118365-1 . Retrieved 27 September 2024.
  3. 1 2 WoRMS (2010). Astraea heliotropium (Martyn, 1784). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=404992 on 2011-03-08
  4. 1 2 G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia

Further reading

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