Fionidae
Fionidae is a family of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the superfamily Fionoidea.
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 within the family Fionidae include:Fiona Alder & Hancock, 1853Calma Alder & Hancock, 1855Cuthona Alder & Hancock, 1855Cuthonella Bergh, 1884Eubranchus Forbes, 1838Murmania Martynov, 2006Tenellia A. Costa, 1866Tergipes Cuvier, 1805Tergiposacca Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016Rubramoena Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016Abronica Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016