Plakobranchacea
| Plakobranchacea | |
|---|---|
| A live individual of Elysia crispata in situ, head end towards the lower right | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Gastropoda | 
| Superorder: | Sacoglossa | 
| Clade: | Plakobranchacea | 
| Superfamilies | |
| See text | |
The Plakobranchacea are a clade of sea slugs, marine gastropod molluscs in the clade Sacoglossa.