A. corona – from Van Oye, 1926
Arcella corona Van Oye, 1926
Diagnosis: This species bears, at some distance from the mouth opening on the dome, a series of horns arranged in a circle. The aperture is re-entrant and at the top the shell is finished in a hemispherical dome. The horns are slightly widened at their base.
Dimensions: unknown.
Ecology: River Ruki, Congo, Africa, 1923.