Rhodopidae

Rhodopidae is a family of sea slugs. Rhodopids are small, meiofaunal organisms with worm-like body plans that differ considerably from a typical gastropod body plan, to the point that Rhodope was at one point classified as a flatworm. They have no shell. Two genera are currently recognized within the family, Rhodope and Helminthope. Helminthope has been described as the most worm-like gastropod.

genus of gastropods