Volvarina joubini

Volvarina joubini
Shell of Volvarina joubini (holotype)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Marginellidae
Subfamily:	Marginellinae
Genus:	Volvarina
Species:	V. joubini
Binomial name
Volvarina joubini (Daudzenberg & Fisher, 1906)
Synonyms
Marginella (Volvarina) joubiniDautzenberg & H. Fischer, 1906 (original combination)

Volvarina joubini is a species of sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails. ^[1]

Description

The length of the shell attains 8 mm, its diameter 3.5 mm.

(Original description in Latin) The shell is rather solid, elongate-subcylindrical and very shiny. The spire is short and contains 3.5 convex and smooth whorls, separated by a hardly visible suture. The body whorl measures occupies about the whole length of the shell. The aperture is narrow, constricted in the middle, scarcely dilated at the base. There are four columellar plaits. The outer lip is thickened and bent in the middle.

The shell has a tawny color with two decurrent bands barely lighter than the background. The upper one is wider and is located at a short distance from the suture. The lower band is narrower and is situated a little below the middle of the nody. These two bands transform, on the thickened external part of the outer lip, into two very clear white spots. ^[2]

Distribution

This marine species occurs off the Cape Verdes

References

1. Volvarina joubini (Daudzenberg & Fisher, 1906) . Retrieved through: World Register of Marine Species  on 24 April 2010.
2. Dautzenberg, P. & Fischer, H. (1906). Mollusques provenant des dragages effectués à l'ouest de l'Afrique pendant les campagnes scientifiques de S.A.S. le Prince de Monaco. Résultats des Campagnes Scientifiques Accomplies sur son Yacht par Albert Ier Prince Souverain de Monaco, 32. Imprimerie de Monaco: Monaco. 125 pp., 5 plates

• Moreno D. & Burnay L.P. (1999) The genus Volvarina (Gastropoda: Marginellidae) in the Cape Verde Islands. Journal of Conchology 36(5): 83-124.
• Rolán E. (2005). Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. ConchBooks. Hackenheim. ISBN   978-3-325-31973-6. 455 pp
• Cossignani, T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. 408 pp