Oliva ancillarioides Reeve, 1850 · Agaronia ancillarioides is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives.

[1] The length of the shell typically ranges from 30 to 60 mm.

The smooth, glossy and polished shell is elongate and spindle-shaped, tapering at both ends.

This marine species is found off the coast of Ghana.

This Olividae-related article is a stub.