Catriona (gastropod)

Catriona is a genus of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the family Trinchesiidae. All species were transferred to Tenellia as a result of a DNA phylogeny study in 2016. It was reinstated in 2017 on the basis of DNA and morphological criteria.

Species within the genus Catriona include:
 * Catriona aurantia (Alder & Hancock, 1842) - type species of Catriona
 * Catriona casha Gosliner & Griffiths, 1981
 * Catriona columbiana (O'Donoghue, 1922)
 * Catriona gymnota (Couthouy, 1838)
 * Catriona lonca Er. Marcus, 1965
 * Catriona maua Ev. Marcus & Er. Marcus, 1960
 * Catriona nigricolora (Baba, 1955)
 * Catriona oba Ev. Marcus, 1970
 * Catriona pinnifera (Baba, 1949)
 * Catriona rickettsi Behrens, 1984
 * Catriona signifera Baba, 1961
 * Catriona susa Ev. Marcus & Er. Marcus, 1960
 * Catriona tema Edmunds, 1968
 * Catriona urquisa Er. Marcus, 1965
 * Catriona venusta (Baba, 1949)

Species names currently considered to be synonyms:
 * Catriona anulata (Baba, 1949) : synonym of Trinchesia anulata (Baba, 1949)
 * Catriona catachroma Burn, 1963 synonym of Trinchesia catachroma (Burn, 1963)
 * Catriona ornata (Baba, 1937) : synonym of Trinchesia ornata (Baba, 1937)
 * Catriona perca Marcus Er., 1958 synonym of Cuthona perca (Er. Marcus, 1958)
 * Catriona puellula (Baba, 1955) : synonym of Cuthona puellula (Baba, 1955)
 * Catriona pupillae Baba, 1961 synonym of Trinchesia pupillae (Baba, 1961)
 * Catriona viridiana Burn, 1962 synonym of Trinchesia viridiana (Burn, 1962)