Dillwynella planorbis is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

[2] The genus Dillwynella is a classification of various sea snails that Dillwynella Planorbis belongs to.

Being a mollusk, the normal height of the shell attains 3 mm and contains various whirls.

This marine species occurs off Japan.

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