Tritia tenuicosta

Tritia tenuicosta
Shell of Tritia tenuicosta (paralectotype at MNHN, Paris)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Nassariidae
Genus:	Tritia
Species:	T. tenuicosta
Binomial name
Tritia tenuicosta (Bucquoy, Dautzenberg & Dollfus, 1882)
Synonyms
Nassa costulata var. tenuicostaBucquoy, Dautzenberg & Dollfus, 1882 (basionym) Nassa ferussaci exiguaPallary, 1904

Tritia tenuicosta is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. ^[1]

Description

The length of the shell attains 9 mm.

(Description as Nassa ferussaci exigua) The shell is small, oval, and squat, with slightly convex whorls. These are adorned with tight, longitudinal ribs that are arched on the first whorls and flexuous on the body whorl. The folds extend down to the columellar canal. The shell is entirely decorated with fine, closely spaced decurrent striae.

The aperture is oval, a little less high (4 mm) than half of the total height (9 mm). The siphonal canal is strongly emarginate. The columella is short and slightly arched. The outer lip is weakly denticulate internally and thickened externally. The coloration is a uniform light reddish-grey, and the peristome is white. ^[2]

Distribution

This species occurs in the Mediterranean Sea off Tunisia.

References

1. Tritia tenuicosta (Bucquoy, Dautzenberg & Dollfus, 1882) . 8 June 2025. Retrieved through: World Register of Marine Species .
2. Pallary, P. (1904–1906). "Addition à la faune malacologique du Golfe de Gabès". Ournal de Conchyliologie. 52 (3): 227. Retrieved 8 June 2025. This article incorporates text from this source, which is in the public domain .

External links

• Pallary, P. (1904–1906). "Addition à la faune malacologique du Golfe de Gabès". Ournal de Conchyliologie. 52 (3): 226. Retrieved 8 June 2025.
• Aissaoui C., Galindo L.A., Puillandre N. & Bouchet P. (2017). "The nassariids from the Gulf of Gabès revisited (Neogastropoda, Nassariidae)" . Marine Biology Research. 13 (4): 370–389. Bibcode:2017MBioR..13..370A. doi:10.1080/17451000.2016.1273528.