Phorcus sauciatus

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Phorcus sauciatus
Phorcus sauciatus 01.JPG
A shell of Phorcus sauciatus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Subfamily: Cantharidinae
Genus: Phorcus
Species:
P. sauciatus
Binomial name
Phorcus sauciatus
(Koch, 1845)
Synonyms [1]
  • Monodonta edulis sauciata(Koch, 1845)
  • Osilinus sauciatus(Koch, 1845)
  • Trochocochlea sagittifera(Lamarck, 1822) sensu Pallary, 1920
  • Trochocochlea sagittifera var. angulosaPallary, 1920
  • Trochocochlea sagittifera var. elevataPallary, 1920
  • Trochocochlea sagittifera var. similigibbulaPallary, 1920
  • Trochus colubrinusGould, 1849
  • Trochus sagittiferusLamarck, 1822 (dubious synonym)
  • Trochus sauciatusKoch, 1845 (original description)
  • Trochus saulcyid'Orbigny, 1840

Phorcus sauciatus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [1] [2] It is native to the Eastern North Atlantic Ocean off the coast of Macaronesia and the Iberian Peninsula.

Contents

Description

The size of the shell varies between 11 mm and 27 mm. The imperforate, rather thin shell has a low conical shape. The coloration is excessively mutable, as well as the general form. Its ground color is greenish, especially on the body whorl, usually purplish on the spire, and either:

The pattern is sometimes so obscurely mottled, spirally and obliquely streaked, that it appears nearly uniform olivaceous, especially on the body whorl. The conic spire is more or less elevated. The minute apex is acute, reddish, when not eroded. The sutures are well impressed. The shell contains six whorls that are spirally more or less obviously, finely, irregularly striate or lirate. The body whorl is rounded or subcarinated at the periphery. The base of the shell is somewhat convex, more or less impressed around the axis, sometimes eroded in front of the aperture. The large aperture is very oblique. The outer lip contains a black-spotted green edge, which is generally followed by a broad thin opaque-white band, within which it is nacreous and iridescent. The oblique columella is thin-edged, the edge convex in the middle. The columellar area is white and more or less eroded. The umbilical tract is covered by a thick pad of enamel. [3]

Distribution

This species occurs in the Eastern North Atlantic off the coast of the Iberian Peninsula (in mainland Portugal and Galicia) and in the Atlantic archipelagos of the Canary Islands, Madeira and eastern Azores. [1] [4]

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References

  1. 1 2 3 Phorcus sauciatus (Koch, 1845) . Retrieved through: World Register of Marine Species  on 18 December 2018.
  2. ↑ Donald K.M., Preston J., Williams S.T., Reid D.R., Winter D., Alvarez R., Buge B., Hawkins S.J., Templado J. & Spencer H.G. 2012. Phylogenetic relationships elucidate colonization patterns in the intertidal grazers Osilinus Philippi, 1847 and Phorcus Risso, 1826 (Gastropoda: Trochidae) in the northeastern Atlantic Ocean and Mediterranean Sea. Molecular Phylogenetics and Evolution, 62(1): 35–45
  3. ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Monodonta sauciata)
  4. ↑ Rubal, Marcos; Veiga, Puri; Moreira, Juan; Sousa-Pinto, Isabel (March 2014). "The gastropod Phorcus sauciatus (Koch, 1845) along the north-west Iberian Peninsula: filling historical gaps". Helgoland Marine Research. 68 (1): 169–177. doi: 10.1007/s10152-014-0379-2 . ISSN   1438-3888 . Retrieved 12 February 2022.
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