Margarella violacea | |
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Six live-collected shells of Margarella violacea with each operculum held in place with glue and cotton | |
Scientific classification | |
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(unranked): | clade Vetigastropoda |
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Species: | M. violacea |
Binomial name | |
Margarella violacea (King & Broderip, 1832) | |
Synonyms | |
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Margarella violacea is a species of small sea snail, a marine gastropod mollusk in the family Calliostomatidae, the top snails. [1]
The animal is pale beige in color and has a pair of cephalic tentacles. [1] The eyes are large and black. [1] The shell is small and wider than it is high. [1] The size of an adult shell varies between 7 mm and 13.5 mm, but can be up to 8.4 mm in height and 9.9 mm in diameter. [1] The purplish-pink shell is imperforate, orbicular-conical, thin and smooth, and is covered in fine pink or dark pink spiral lines. [1] There are four swollen whorls. The suture is scarcely impressed. The rounded-quadrangular aperture is angular above, and subangular at the base of slightly thickened and arcuate columella. The umbilico-columellar tract is excavated. [1]
This species occurs in the Atlantic Ocean on the coast of Argentina and the Falkland Islands, i.e. in the Magellanic Region.
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