Anatoma tenuisculpta

Anatoma tenuisculpta
Shell of Anatoma tenuisculpta (specimen at the Natural History Museum Rotterdam)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Lepetellida
Superfamily:	Scissurelloidea
Family:	Anatomidae
Genus:	Anatoma
Species:	A. tenuisculpta
Binomial name
Anatoma tenuisculpta (Seguenza, 1877)
Synonyms [1]
Scissurella argutecostataSeguenza, 1877 Scissurella funnazzensisde Gregorio, 1889 † Scissurella subasperaBoettger, 1907 Scissurella tenuisculptaSeguenza, 1877

Anatoma tenuisculpta is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Anatomidae. ^[1]

Description

The length of the shell attains 4 mm, its diameter 3.8 mm.

(Original description in Italian) This distinct form is larger than Anatoma eximia (Seguenza, 1877), alongside which it is found and from which it is easily distinguished because, in its general shape, it is less globose, the spire is less elevated, the posterior part of the whorls is more convex, the anterior part is very short, and the anterior region of the body whorl is only slightly swollen and almost equally as convex as the posterior.

The sculpture is extremely delicate: on the posterior region of the whorls, it consists of very fine oblique lines and finer spiral lines. On the anterior region of the body whorl, which bears an angle near the groove, the oblique lines continue with the same intensity, while the spiral lines are more distinct and widely spaced. The umbilicus is formed by a deep umbilical fissure. The aperture is rounded-angular. ^[2]

Distribution

This marine species occurs off Norway; in the Atlantic Ocean on the Rockall Trough; in the Mediterranean Sea off Italy.

References

1. Anatoma tenuisculpta (Seguenza, 1877) . 27 July 2025. Retrieved through: World Register of Marine Species .
2. Seguenza, G. (1880). "Le formazioni terziarie nella provincia di Reggio (Calabria)". Memorie della Classe di Scienze Fisiche Matematiche e Naturali della Regia Accademia del Lincei. 3 (6): 273. Retrieved 27 July 2025. This article incorporates text from this source, which is in the public domain .

• Geiger D.L. (2012) Monograph of the little slit shells. Volume 1. Introduction, Scissurellidae. pp. 1-728. Volume 2. Anatomidae, Larocheidae, Depressizonidae, Sutilizonidae, Temnocinclidae. pp. 729–1291. Santa Barbara Museum of Natural History Monographs Number 7

External links

• De Gregorio, A. (1889). "Esame di taluni molluschi viventi e terziari del Bacino Mediterraneo". il Naturalista Siciliano. 8 (10–11): 175.
• Boettger, O. (1907). "Zur Kenntnis der Fauna der mittelmiocänen Schichten von Kostej im Krassó–Szörényer Komitat (Gasteropoden und Anneliden). III". Verhandlungen und Mitteilungen des Siebenbürgischen Vereins für Naturwissenschaften zu Hermannstadt. 55: 197.
• Høisæter T. & Geiger D.L. (2011) Species of Anatoma (Gastropoda: Anatomidae) in Norwegian and adjacent waters, with the description of two new species. The Nautilus 125(3): 89-112