Pseudostomatella papyracea

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Pseudostomatella papyracea
Pseudostomatella papyracea 001.jpg
Drawing with two views of a shell of Pseudostomatella papyracea
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: Stomatellinae
Genus: Pseudostomatella
Species:
P. papyracea
Binomial name
Pseudostomatella papyracea
(Gmelin, 1791)
Synonyms [1]
  • Stomatella papyracea(Gmelin, 1791)
  • Stomatella tumidaGould, 1849
  • Turbo papyraceusGmelin, 1791

Pseudostomatella papyracea, common name the papery stomatella, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [1] [2]

Contents

Description

The size of a shell varies between 17 mm and 32 mm. The thin, globose shell is obliquely conoidal. It is fawn colored, with a series of short markings at the periphery alternately reddish and white. It has narrow girdles on the spirals of fine arrow-shaped articulations. The surface is shining and polished. It is spirally sculptured by numerous low wide riblets. The striae of increment are fine. The spire is conical, small and acute with 5 to 6 whorls. The last whorl is very rapidly enlarging. The whorls of the spire show narrow sharp spiral lirae decussated by close raised longitudinal striae. The oval aperture is acutely angular above, not very oblique. It is brilliantly iridescent inside, and lightly silicate. The columella is deeply arcuate. The umbilical region is covered by an opaque, white, arcuately striated callus. Its outer edge is well defined. [3]

The animal, according to A. Adams, [4] has a horny operculum and although bulky is able to retract entirely within the shell.

Distribution

This marine species occurs off the Philippines and in the Indo-West Pacific.

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References

  1. 1 2 Bouchet, P. (2012). Pseudostomatella papyracea (Gmelin, 1791). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=547313 on 2012-11-23
  2. ↑ Poppe G.T., Tagaro S.P. & Dekker H. (2006) The Seguenziidae, Chilodontidae, Trochidae, Calliostomatidae and Solariellidae of the Philippine Islands. Visaya Supplement 2: 1-228.
  3. ↑ H.A. Pilsbry (1890) Manual of Conchology XII; Academy of Natural Sciences, Philadelphia, 1890 (described as Stomatella papyracea)
  4. ↑ A. Adams in Thes. Conch, ii, p. 836,
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