sea slug

 

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sea slug

Wikipedia

• sea-slug

From sea +‎ slug.

sea slug (plural sea slugs)

1. A common name for any marine invertebrate with a visual resemblance to terrestrial slugs (land slugs).
2. Any soft-bodied marine gastropod mollusks of the order Nudibranchia.

• nudibranch
• sea hare
• gastropod