Vexillum nitidissimum

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Vexillum nitidissimum
Vexillum nitidissimum (MNHN-IM-2000-25051).jpeg
Shell of Vexillum nitidissimum (syntype at MNHN, Paris)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Turbinelloidea
Family: Costellariidae
Genus: Vexillum
Species:
V. nitidissimum
Binomial name
Vexillum nitidissimum
(Melvill & Standen, 1895)
Synonyms [1]
  • Mitra (Costellaria) nitidissimaMelvill & Standen, 1895 (basionym)
  • Mitra (Volutomitra) nitidissimaMelvill & Standen, 1895
  • Mitra (Volutomitra) nitidissima var. rubidaDautzenberg & Bouge, 1923
  • Mitra capricorneaHedley, 1907
  • Mitra nitidissimaMelvill & Standen, 1895
  • Pusia nitidissimum(Melvill & Standen, 1895)
  • Vexillum (Pusia) nitidissimum(Melvill & Standen, 1895)

Vexillum nitidissimum is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters. [1]

Contents

Description

The length of the shell attains 9 mm, its diameter 1.5 mm.

(Original description) The very small shell is brown, very shining and smooth. The shell contains six, slightly ventricose whorls. It is longitudinally roundly costate. The aperture is oblong. The outer lip is slightly incrassate. The columella is four-plaited. [2]

(Described as Mitra capricorneaHedley, 1907) The minute shell is slender, conical, solid. It contains five whorls, of which two compose the protoconch.

Colour: various shades of brown from chocolate to ochre, or lilac, usually monochrome, but sometimes with two narrow spiral dark lines on the upper whorls.

Sculpture: the protoconch is smooth, the remainder with broad, wave-like well spaced, radial ribs, about eleven to the whorl, which undulate the suture, continue from whorl to whorl and vanish on the base. The last third of the body whorl is without ribbing. The aperture is narrow, the columella quadruplicate, the folds diminishing rapidly in size downwards. There is a thick callus layer on the inner lip, a stout tubercle beneath the hook of the right insertion, about six deep-seated spiral lyrae on the parietal wall.

The form varies; some are stouter, others more slender. [3]

Distribution

This marine species occurs off the Philippines and off Lifou Island, New Caledonia; also off Australia (Queensland)

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References

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