Agathotoma candidissima

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Agathotoma candidissima
Agathotoma candidissima 001.jpg
Shell of Agathotoma candidissima (specimen at MNHN, Paris)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Mangeliidae
Genus: Agathotoma
Species:
A. candidissima
Binomial name
Agathotoma candidissima
(C.B. Adams, 1845)
Synonyms [1]
  • Agathotoma badia(Reeve, 1846)
  • Agathotoma densestriata(C. B. Adams, 1850)
  • Lachesis candidissima(C.B. Adams, 1845)
  • Mangelia badiaReeve, 1846
  • Mangelia hornbeckiiReeve, 1846
  • Mangelia densestriataC. B. Adams, 1850
  • Pleurotoma badiaReeve, 1846
  • Pleurotoma candidissimaAdams C. B., 1845 (basionym)
  • Pleurotoma hexagonaPfeiffer, 1840
  • Pleurotoma (Mangilia) millestriataE. A. Smith, 1882
  • Pyrgocythara candidissima(Adams C. B., 1845)

Agathotoma candidissima, common name Cox's mangelia, is a species of sea snail, a marine gastropod mollusc in the family Mangeliidae. [1]

Contents

Description

The length of the shell varies between 4 mm and 11 mm.

The white, oblong, turreted shell features 7 to 8 whorls, with the protoconch missing in the specimen described. The axial sculpture comprises 7 to 8 ribs, with a distinctive characteristic where some ribs on the body whorl turn abruptly at right angles towards the base of the columella. This feature is especially noticeable on the penultimate and the three or four preceding ribs. Near the top, just below the suture, the ribs are faintly angled. Additionally, faint dots appear on the base in the upper whorls and on the middle and lower parts of the body whorl, which may be easily overlooked. A few faint dots are also present between the ribs, just below the suture.

The aperture is elongate-ovate, accounting for approximately 3/7 of the shell's total length. The outer lip is thickened and slightly insinuate at the top. The siphonal canal is short, and the base of the shell is truncated. [2]

Distribution

This species occurs in the Caribbean Sea, the Gulf of Mexico and the Lesser Antilles. Fossils have been found from the Early Pleistocene to the Middle Pleistocene in Southern Florida. [3]

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References

  1. 1 2 Agathotoma candidissima (C.B. Adams, 1845) . Retrieved through: World Register of Marine Species  on 7 August 2011.
  2. ↑ Smith, E.A. (1877). "Diagnoses of new species of Pleurotomidae in the British Museum". Annals and Magazine of Natural History. 4 (19): 488–501.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  3. ↑ "Neogene Atlas of Ancient Life in the Southeast of the United States: Agathotoma candidissima". Archived from the original on 2017-02-27. Retrieved 2017-02-26.
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