Fionidae

Fionidae is a family of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the superfamily Fionoidea.

Taxonomic history

This family was expanded to include Tergipedidae, Eubranchidae and Calmidae as a result of a molecular phylogenetics study. This was reversed in 2017 with further DNA evidence and a re-interpretation of genus and family characteristics.

Genera

According to Korshunova et al. (2025), genera within the family Fionidae include:

• Fiona <small>Alder & Hancock [in Forbes & Hanley], 1853</small>
• Tergiposacca <small>Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016</small>

Other genera not mentioned in Korshunova et al. (2025) include:

• Zatteria <small>Eliot, 1902</small>

References

External links