Longchaeus acus

Last updated

Needle pyram
Longchaeus acus 01.jpg
A shell of Longchaeus acus from Samoa
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Longchaeus
Species:
L. acus
Binomial name
Longchaeus acus
(Gmelin, 1791)
Synonyms [1]
  • Lonchaeus acus [sic]Gmelin, 1791
  • Longchaeus punctatus(Férussac, 1821)
  • Pyramidella (Longchaeus) acus(Gmelin, J.F., 1791)
  • Pyramidella acus(Gmelin, 1791)
  • Pyramidella maculosaLamarck, J.B.P.A. de, 1822
  • Pyramidella musculosaLamarck, J.B.P.A. de, 1816
  • Pyramidella punctataSchubert, H.G. & A.J. Wagner, 1829 (invalid: homonym and synonym of Pyramidella punctataFérussac, 1821)
  • Pyramidella punctataFérussac, 1821
  • Voluta acusGmelin, 1791 (original combination)
  • Voluta guttataLink, H.F., 1807

Longchaeus acus, common name the needle pyram, is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. [1] [2] [3]

Contents

Description

Drawing of Pyramidella acus from Manual of conchology, structural and systematic (1881) Pyramidella acus 001.png
Drawing of Pyramidella acus from Manual of conchology, structural and systematic (1881)

The shell is polished. Its color is white, with dark chestnut or chocolate spots, usually arranged in three revolving series on the whorls of the teleoconch and five series on the body whorl. The columella is three-plaited with the upper plait largest. The lip is sometimes lirate within. The peripheral groove becomes in this species either obsolete or indicated by a slight angle. [4] The length of the shell varies between 19 mm and 67 mm.

Distribution

This marine species occurs in the Indo-W Pacific (Red Sea, Tanzania, Madagascar, Mauritius, Mascarene Basin [1] and in South East Asia, in Vietnam and Philippines).

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References

  1. 1 2 3 Rosenberg, G. (2010). Pyramidella acus (Gmelin, 1791). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=208425 on 2012-01-12
  2. ↑ Drivas, J. & M. Jay (1988). Coquillages de La Réunion et de l'île Maurice
  3. ↑ Dautzenberg, P. (1923). Liste preliminaire des mollusques marins de Madagascar et description de deux especes nouvelles. Journal de Conchyliologie 68: 21-74.
  4. ↑ G.W. Tryon, Manual of Conchology vol. VIII p. 301; 1889


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