Vayssierea

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Vayssierea is a genus of sea slugs known as dorid nudibranchs. They are shell-less marine gastropods and belong to the family Okadaiidae.

Classification:
- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Order: Nudibranchia
- Family: Okadaiidae
- Genus: Vayssierea (Risbec, 1928)

Synonyms:
- Okadaia (Baba, 1930)
- Pellibranchus (Ralph, 1944)

The exact evolutionary relationships of Vayssierea within nudibranchs are not yet fully understood. There are several species in the genus.