Anatoma amoena

The shell grows to a length of 3.5 mm.

(Original description in German) The shell's form closely resembles Anatoma alta (R. B. Watson, 1886), though it's notably larger, measuring about 3.5 mm in both height and diameter. Of its 4.5 whorls, the first two are flat. The subsequent whorls descend distinctly and are clearly convex at the top, with the broad slit band lying above the suture. The body whorl is also convex below, placing the slit band fairly in the middle. Both the upper and under sides are sculpted with rather strong, curved radial ribs and weaker spiral ridges. The umbilicusis moderately wide, partly covered by the columellar margin, and the apertureis fairly round. ^[2]

This species occurs in the Weddell Sea, Antarctica.

• Zelaya D.G. & Geiger D.L. (2007). Species of Scissurellidae and Anatomidae from Sub-Antarctic and Antarctic waters (Gastropopda: Vetigastropoda). Malacologia 49(2):393–443.
• Geiger D.L. & Marshall B.A. (2012) New species of Scissurellidae, Anatomidae, and Larocheidae (Mollusca: Gastropoda: Vetigastropoda) from New Zealand and beyond. Zootaxa 3344: 1–33

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