Murex trapa

Murex trapa
Murex trapa
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily: Muricoidea
Family: Muricidae
Subfamily: Muricinae
Genus: Murex
Species: M. trapa
Binomial name
Murex trapa
Roding, 1798
Synonyms[1]
  • Murex (Murex) trapa Röding, 1798 · accepted, alternate representation
  • Murex duplicatus sensu Chemnitz Pusch, 1837 (invalid: junior homonym of Murex duplicatus Donovan, 1804)
  • Murex martinianus Reeve, 1845
  • Murex rarispina Lamarck, 1822
  • Murex unindentatus Sowerby, 1834

Murex trapa, common name the rare-spined murex, is a species of sea snail, a marine gastropod mollusc of the family Muricidae, the rock snails. [1]

Distribution

This species is widespread from Madagascar and Mascarene Islands, South-Eastern India, Sri Lanka and the Andaman Sea to southern Indonesia, Philippines, Taiwan and Southern Japan. [2][3]

Habitat

Murex trapa can be found in demersal, sandy habitats.

A shell of Murex trapa from Mauritius, on display at the Museo Civico di Storia Naturale di Milano

Description

Shells of Murex trapa can reach a length of 50–124 millimetres (2.0–4.9 in), with a diameter of 8–21 millimetres (0.31–0.83 in).[2]

These moderately large shells are fusiforms or club-shaped, with hight and acute spire and prominent spiral ridges. Shell surface is normally light brown or blue-gray with some yellowish-brown on spines. The body whorl shows three spiny varices. The aperture is lenticular, with a white interior margin and deep red-brown within. The outer apertural lip is crenulated. The sipholal canal is straight and moderately long (about 13-47 mm.). Three to four short spines are restricted to the basal half of siphonal canal. [4][5][6]


Biology

The Rare-spined Murex is an active predator, mainly feeding on other molluscs and barnacles. [6]

References

Apertural view of a shell of Murex trapa
  1. 1 2 Bouchet, P. (2015). Murex trapa Röding, 1798. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=743629 on 2015-12-23
  2. 1 2 Hardy's Internet Guide to Marine Gastropods
  3. Sealife Base
  4. George E. Radwin,Anthony D'Attilio Murex Shells of the World: An Illustrated Guide to the Muricidae
  5. Bio Search
  6. 1 2 Muricidae at FAO.org

Bibliography

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