Rhodopetoma erosa is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Rhodopetoma erosa auct. non Schrenk, 1867 is a synonym of Propebela nobilis (Möller, 1842)
This marine species reaches 18 mm in length, its diameter 6.6 mm.
The shell is longitudinally ribbed and spirally striated. There is a narrow band at the suture brown, with sometimes a darker band at thesuture and another at the base.
