Oliva propatula Conrad, 1849 superseded combination Agaronia propatula is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives.

[1] (Original description) The shell is ovate-oblong and slightly swollen towards the base.

The shell is adorned with sparse longitudinal zigzag brown lines and darker transverse hair-like lines, along with scattered spots.

The base of the shell shows a carinated midsection with a deposited substance.

[2] This species occurs in the Pacific Ocean off Central America and the coasts of Colombia and Ecuador.