Sacoglossa
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Sacoglossa is a superorder of small sea slugs and sea snails, marine gastropod mollusks, belonging to the clade Heterobranchia, whose members are known as sacoglossans. There are 284 valid species rec
Elysia clarki, Florida
Oxynoe viridis cropped
Sea slug
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Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are gastropods, i.e. they are sea snails that, over e
Sacoglossa
…Sacoglossa is a superorder of small sea slugs and sea snails, marine gastropod mollusks, belonging to the clade Heterobranchia, whose members are known as sacoglossans. There are 284 valid species…
The nudibranch Nembrotha aurea is a gastropod.
A sea cucumber also looks slug-like and is sometimes loosely called a "sea slug", but it is not a gastropod.
The nudibranch Glossodoris atromarginata
The sacoglossan Elysia crispata