Agathotoma merlini

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Agathotoma merlini
Agathotoma merlini (MNHN-IM-2000-3093).jpeg
Shell of Agathotoma merlini (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: Conoidea
Family: Mangeliidae
Genus: Agathotoma
Species:
A. merlini
Binomial name
Agathotoma merlini
(Ph. Dautzenberg, 1910)
Synonyms [1]
  • Cythara merlini(Dautzenberg, 1910)
  • Mangilia merliniDautzenberg, 1910

Agathotoma merlini is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. [1] First described in 1910, its species name refers to Martial Henri Merlin, governor-general of French Congo. [2]

Contents

Description

The size of the shell varies between 5 mm and 8.5 mm; its diameter 3 mm.

The solid shell is very elongated with a fusiform-subcylindrical shape. The spireconsists of 8 whorls. The initial whorls are smooth and convex, while the remaining whorls are slightly convex. The suture is appressed. The shell's sculpture includes longitudinal ribs, which are narrower than their intervals, numbering 10 on the body whorl, with extremely fine striae visible only under magnification.

The aperture is narrow, constituting less than half the shell's total length. The columella is slightly excavated at the top and subtly twisted at the base. The outer lip is smooth on the inner side, featuring a sinus at the top and is inflected below the sinus.

The shell is primarily white with deciduous yellowish areas. The last three whorls exhibit a brown subsutural zone, interrupted by the lower extremities of the ribs, which remain white. The columella is tinged with dark brown. [2]

Distribution

It occurs on the westcoast of Africa (Mauritania and Senegal), and also on the islands of São Tomé and Príncipe. [3]

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References

  1. 1 2 Agathotoma merlini (Dautzenberg, 1910) . Retrieved through: World Register of Marine Species  on 7 August 2011.
  2. 1 2 Dautzenberg P. (1910). Contribution à la faune malacologique de l'Afrique occidentale. Actes de la Société Linnénne de Bordeaux 44: 1-174 pl. 1-4, pp. 73-75 PD-icon.svg This article incorporates text from this source, which is in the public domain .
  3. ↑ Rolán, E.; Fernandes, F. (1992). "Aportaciones al conocimiento de la familia Turridae Swainson, 1840 (Mollusca, Gastropoda) en las islas de Sâo Tomé y Príncipe (Golfo de Guinea)". Nova Acta Científica Compostelana (Bioloxía) (in Spanish). 3: 135–143.
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