Nassarius recidivus

Nassarius recidivus is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.[4]

Nassarius recidivus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Nassariidae
Genus: Nassarius
Species:
N. recidivus
Binomial name
Nassarius recidivus
(Martens, 1876)[1]
Synonyms[2]
  • Alectrion (Zeuxis) antiquatus (Watson, 1897)
  • Nassa (Telasco) azorica Dautzenberg, 1889
  • Nassa (Telasco) azorica var. fuscoviolacea Pallary, 1900
  • Nassa antiquata Watson 1897
  • Nassa glomus Monterosato 1890
  • Nassa semistriata var. azorica Dautzenberg 1889
  • Nassa semistriata var. bulliaeformis Kobelt 1878
  • Nassa semistriata var. recidiva Martens 1876[3] (basionym)
  • Nassarius antiquatus (Watson, 1897)
  • Nassarius (Nassarius) macrodon recidivus (Martens, 1876)

Description

The shell grows to a length of 12 mm. It has a high, slightly cyrtoconoid (almost with the shape of a cone, but having convex sides) spire and a somewhat constricted body whorl. The protoconch consists of ca. 3 rather large and smooth whorls. The first three teleoconch whorls contain spiral cords and axial folds, which fade out on the next two except for the subsutural spirals. The body whorl resumes a spiral sculpture of very even, flattened cords much that are broader than the interspaces. The aperture is lanceolate. The outer lip is slightly thickened externally and bears 5–6 strong rounded denticles inside. The parietal callus is appressed and devoid of a parietal denticle. It continues into a columellar callus which has a rounded edge, slightly raised over the siphonal canal and bearing a few tubercles. The colour of the shell has a brownish hue over a white background. The subsutural and median cords are articulated with darker brown. The aperture is white.

Distribution

This species is distributed in the Western Mediterranean Sea and in the Atlantic Ocean off Madeira.

References
  1. Martens E. von (1876). Ueber einige Conchylien aus Westafrika. Jahrbücher der Deutschen Malakozoologischen Gesellschaft 3: 236–249, pl. 9. World Register of Marine Species, Retrieved 18 April 2010.
  2. "Clemam: Nassarius recidivus". Archived from the original on 8 February 2006. Retrieved 29 October 2012.
  3. v. Martens, E. (1876). "Ueber einige Conchylien aus Westafrika". Jahrbücher der Deutschen Malakozoologischen Gesellschaft. 3: 246–247.
  4. Nassarius recidivus (Martens, 1876). Retrieved through: World Register of Marine Species on 18 April 2010.
  • Adam W. & Glibert M. (1974). Contribution à la connaissance de Nassarius semistriatus (Brocchi, 1814). (Mollusca : Gastropoda). Bulletin de l’Institut Royal des Sciences Naturelles de Belgique 50(3): 1–78.
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
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