Fionidae
# 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

Genera within the family Fionidae include:

* Fiona Alder & Hancock [in Forbes & Hanley], 1853
* Calma Alder & Hancock, 1855
* Cuthona Alder & Hancock, 1855
* Cuthonella Bergh, 1884
* Eubranchus Forbes, 1838
* Murmania Martynov, 2006
* Tenellia A. Costa, 1866
* Tergipes Cuvier, 1805
* Tergiposacca Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016
* Rubramoena Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016
* Abronica Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016
