Nerita filosa

Nerita filosa
Shell of Nerita filosa (iconotype at MNHN, Paris)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Neritimorpha
Order:	Cycloneritida
Family:	Neritidae
Genus:	Nerita
Species:	N. filosa
Binomial name
Nerita filosa Reeve, 1855
Synonyms
Nerita (Cymostyla) filosaReeve, 1855 alternative representation Nerita (Ritena) filosaReeve, 1855

Nerita filosa, common name the threaded nerite, is a species of sea snail, a marine gastropod mollusk in the family Neritidae. ^[1]

Description

(Original description) The shell is globosely turbinate, with an exserted, sharp-pointed spire. Its whorls slant at the upper part, then become convex, and are spirally threaded with minutely divided ridges. The outer lip is inwardly thickened, minutely crenulated, and features a sharp lateral denticle on each side. The columella is smooth and finely toothed. The shell's color is rusty fawn, with the ridges delicately blue-black. ^[2]

Distribution

This marine species occurs Vanuatu and New Caledonia.

References

1. Nerita filosa Reeve, 1855 . Retrieved through: World Register of Marine Species  on 5 May 2010.
2. Reeve, L.A. (1855). Monograph of the genus Nerita. In: Conchologia Iconica, or, illustrations of the shells of molluscous animals, vol. 9. London: L. Reeve & Co. p. 48. Retrieved 12 July 2025. This article incorporates text from this source, which is in the public domain .

• Dautzenberg P. (1929). Contribution à l'étude de la faune de Madagascar: Mollusca marina testacea. Faune des colonies françaises. [Contribution to the study of the fauna of Madagascar: Mollusca marina testacea. Fauna of the French colonies.]. Société d'Editions Géographiques, Maritimes et Coloniales. 3(4): 321-636, pls 4-7. Paris.