Oh Imomushi

Oh Imomushi, (大イモ虫) or Big Caterpillar is a creature developed by the Golden Lion Pirates' doctor Indigo using the SIQ for Shiki's plan to overthrown the World Government by destroying the East Blue.

It was seen in One Piece Film: Strong World, chasing Sanji and Usopp in an island in Merveille, but it falls of the island.