Conus miliaris

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Conus miliaris
Conus miliaris 001.jpg
Apertural view of a shell of Conus miliaris miliaris
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Conidae
Genus: Conus
Species:
C. miliaris
Binomial name
Conus miliaris
Hwass in Bruguière, 1792 [1]
Synonyms [2]
  • Conus (Virroconus) miliarisHwass in Bruguière, 1792 · accepted, alternate representation
  • Conus barbadensisHwass in Bruguière, 1792
  • Conus fulgetrumG. B. Sowerby II, 1834
  • Conus miliaris var. minorCouturier, 1907 (invalid: junior homonym of Conus mediterraneus var. minorMonterosato, 1878)
  • Conus minimus var. granulatusG. B. Sowerby I, 1834
  • Conus scaberKiener, 1845
  • Miliariconus miliarisHwass, C.H. in Bruguière, J.G., 1792

Conus miliaris, common name the thousand-spot cone, is a species of sea snails, marine gastropod molluscs in the family Conidae, the cone snails and their allies. [2]

Contents

Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.

Subspecies

Description

The size of an adult shell varies between 12 mm and 43 mm. The spire is more or less raised, striate or sometimes nearly smooth, with or without tubercles The body whorl is striate, the stride usually grannlous towards the base, and sometimes throughout. The color of the shell is yellowish or light chestnut or grayish, variously clouded with darker chestnut or olive, often irregularly light-banded at the middle, and below the spire, and encircled with chestnut spots on the striae. The interior is chocolate, with a central white band. There is considerable variation in the height and coronation of the spire, as well as in the color and pattern of the markings. [3]

Distribution

Conus miliaris is a species of wide distribution, and apparently everywhere common. It occurs in tropical to subtropical shallow water environments from the Red Sea and eastern shores of Africa in the western Indian Ocean (Aldabra, Chagos, Kenya, Madagascar, the Mascarene Basin, Mauritius, Mozambique and Tanzania) to Easter Island and Sala y Gómez in the southeastern Pacific (but not off the Galapagos Islands, the Marquesas Islands and Hawaii).; [4] off Australia (New South Wales, Northern Territory, Queensland, Western Australia).

Feeding habits

These snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.

Presumably in response to the relative absence of congeners at Easter Island, Conus miliaris has undergone ecological release: it preys on a more diverse assemblage of prey at Easter Island and is more abundant at Easter Island than at other localities in its range. [4] Conus miliaris from most areas in the Indo-West Pacific, where it co-occurs with as many as 36 congeners, preys almost exclusively on three species of eunicid polychaetes (Eunicidae). [4]

But at Easter Island its diet is considerably broader and includes additional species of eunicids as well as several species of nereids, an onuphid and members of seven other polychaete families. [4] Its prey on Easter Island include: Eunicidae includes Lysidice collaris , Nematonereis unicornis , Eunice afra , Eunice cariboea and Palola siciliensis ; Nereididae includes Perinereis singaporensis ; Onuphidae includes Onuphis sp. [4]

Below are several color forms and one subspecies:

Related Research Articles

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References

This article incorporates CC-BY-2.5 text from the reference [4]

  1. ↑ Bruguière, J. G., and Hwass, C. H., 1792. Cone. Encyclopédie Méthodique: Histoire Naturelle des Vers, 1: 586–757
  2. 1 2 Conus miliaris Hwass in Bruguière, 1792. Retrieved through: World Register of Marine Species  on 31 July 2011.
  3. ↑ George Washington Tryon, Manual of Conchology vol. VI p. 21–22; 1879
  4. 1 2 3 4 5 6 Duda T. F. Jr. & Lee T. (2009). "Ecological Release and Venom Evolution of a Predatory Marine Snail at Easter Island". PLoS ONE 4(5): e5558. doi : 10.1371/journal.pone.0005558
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