Phasianotrochus irisodontes

Phasianotrochus irisodontes
Drawing with two views of a shell of Phasianotrochus irisodontes
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea
Family: Trochidae
Genus: Phasianotrochus
Species: P. irisodontes
Binomial name
Phasianotrochus irisodontes
(Quoy & Gaimard, 1834) [1]
Synonyms[2]
  • Cantharidus irisodontes (Quoy & Gaimard, 1834).
  • Cantharidus nitidulus (Philippi, 1855)
  • Cantharidus schrayeri (Philippi, 1850)
  • Elenchus irisodontes (Quoy & Gaimard, 1834)
  • Elenchus nitidulus (Philippi, 1855)
  • Elenchus virgulatus (Philippi, 1850)
  • Eleuchus vulgaris Adams, 1853
  • Monodonta virgata Menke, 1843
  • Trochus iriodon Philippi, 1845
  • Trochus irisodontes Quoy & Gaimard, 1834 (original description)
  • Trochus laetus Philippi, 1850
  • Trochus minor Philippi, 1851
  • Trochus nitidulus Philippi, 1855
  • Trochus schrayeri Philippi, 1850
  • Trochus virgulatus Philippi, 1850

Phasianotrochus irisodontes, common name the rainbow kelp or the green necklace shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[2][3]

Description

The height of the shell varies between 10 mm and 20 mm. The pointed, imperforate, solid shell has an elongated conic shape. It is polished, yellowish, pink, or olive-green, with reddish or olive longitudinal lines in pairs, sometimes separate on the body whorl, and usually with numerous narrow, rather obscure spiral pink or yellowish lines. It sometimes has a few series of white dots on the upper part. The conic spire is shorter and less attenuated than in Phasianotrochus bellulus. The about 7 whorls are scarcely convex. The body whorl is not carinate. It is finely striate beneath,and smooth above. The aperture is rather large, often expanded. It is smooth inside, lined with intensely green nacre. The columella is strongly toothed below.

The coloration is quite variable with even unicolored green specimens. The aperture is sometimes so dilated that the spire seems to lean to that side. [4]

Distribution

This marine species is endemic to Australia and occurs in the subtidal and the lower intertidal zone off South Australia, Tasmania, Victoria and Western Australia.

References

  1. Quoy, J.R. & Gaimard, J.P. 1834. Voyage de Découvertes de l'Astrolabe exécuté par Ordre du Roi, Pendant les Années 1826-1829. Paris : J. Tastu Zoologie Vol. 3 366 pp
  2. 1 2 Bouchet, P. (2012). Phasianotrochus irisodontes (Quoy & Gaimard, 1834). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=573221 on 2012-11-23
  3. Hickman C.S. (2005) Seagrass fauna of the temperate southern coast of Australia I: The cantharidine trochid gastropods. In: F.E. Wells, D.I. Walker & G.A. Kendrick (eds), The marine flora and fauna of Esperance, Western Australia: 199-220. Western Australian Museum, Perth.
  4. Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
External identifiers for Phasianotrochus irisodontes
NCBI 529777
WoRMS 573221
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