# Okenia

Okenia is a genus of colorful sea slugs, specifically of dorid nudibranchs, marine gastropod mollusks in the family Goniodorididae.

## Species

Species within the genus Okenia include:
* Okenia academica Camacho-Garcia & Gosliner, 2004
* Okenia africana Edmunds, 2009
* Okenia ameliae Ortea, Moro & Caballer, 2014
* Okenia amoenula (Bergh, 1907)
* Okenia angelensis Lance, 1966
* Okenia angelica Gosliner & Bertsch, 2004
* Okenia ascidicola M.P. Morse, 1972
* Okenia aspersa (Alder & Hancock, 1845)
* Okenia atkinsonorum Rudman, 2007
* Okenia aurorapapillata Paz-Sedano & Pola in Paz-Sedano, Wilson, Carmona, Gosliner & Pola, 2021
* Okenia barnardi Baba, 1937
* Okenia brunneomaculata Gosliner, 2004
* Okenia cochimi Gosliner & Bertsch, 2004
* Okenia cupella (Vogel & Schultz, 1970)
* Okenia digitata (Edmunds, 1966)
* Okenia distincta Baba, 1940
* Okenia echinata Baba, 1949
* Okenia elegans (Leuckart, 1828) - type species
* Okenia elisae Paz-Sedano & Pola in Paz-Sedano, Wilson, Carmona, Gosliner & Pola, 2021
* Okenia eolida (Quoy & Gaimard, 1832)
* Okenia evelinae Er. Marcus, 1957
* Okenia felis Gosliner, 2010
* Okenia ghanensis Edmunds, 2009
* Okenia hallucigenia Rudman, 2004
* Okenia harastii Pola, Roldán & Padilla, 2014
* Okenia hiroi (Baba, 1938)
* Okenia hispanica Valdes & Ortea, 1995
* Okenia impexa Er. Marcus, 1957
* Okenia japonica Baba, 1949
* Okenia kendi Gosliner, 2004
* Okenia kondoi (Hamatani, 2001) - originally described as Sakishimaia kondoi Hamatani, 2001
* Okenia lambat Gosliner, 2004
* Okenia leachii (Alder & Hancock, 1854)
* Okenia liklik Gosliner, 2004
* Okenia longiductis Pola, Paz-Sedano, Macali, Minchin, Marchini, Vitale, Licchelli & Crocetta, 2019
* Okenia luna Millen, Schrödl, Vargas, & Indacochea, 1994
* Okenia mediterranea (Ihering, 1886)
* Okenia mellita Rudman, 2004
* Okenia mexicorum Gosliner & Bertsch, 2004
* Okenia mica Ortea & Moro, 2014
* Okenia mija Burn, 1967
* Okenia miramarae Ortea & Espinosa, 2000
* Okenia nakamotoensis (Hamatani, 2001)
* Okenia nakanoae Paz-Sedano & Pola in Paz-Sedano, Wilson, Carmona, Gosliner & Pola, 2021
* Okenia opuntia Baba, 1960
* Okenia pellucida Burn, 1967
* Okenia picoensis Paz-Sedano, Ortigosa & Pola, 2017
* Okenia pilosa (Bouchet & Ortea, 1983)
* Okenia plana Baba, 1960
* Okenia polycerelloides (Ortea & Bouchet, 1983)
* Okenia problematica Pola, Paz-Sedano, Macali, Minchin, Marchini, Vitale, Licchelli & Crocetta, 2019
* Okenia pulchella Alder & Hancock, 1854
* Okenia purpurata Rudman, 2004
* Okenia purpureolineata Gosliner, 2004
* Okenia rhinorma Rudman, 2007
* Okenia rosacea (MacFarland, 1905)
* Okenia sapelona Ev. Marcus & Er. Marcus, 1967
* Okenia siderata Paz-Sedano & Pola in Paz-Sedano, Wilson, Carmona, Gosliner & Pola, 2021
* Okenia stellata Rudman, 2004
* Okenia tenuifibrata Paz-Sedano & Pola in Paz-Sedano, Wilson, Carmona, Gosliner & Pola, 2021
* Okenia vancouverensis (O'Donoghue, 1921)
* Okenia vena Rudman, 2004
* Okenia virginiae Gosliner, 2004
* Okenia zoobotryon (Smallwood, 1910)

### Nomen dubium

* Okenia pusilla Sordi, 1974

### Species names considered to be synonyms

* Okenia dautzenbergi Vayssière, 1919: synonym of Okenia aspersa (Alder & Hancock, 1845)
* Okenia modesta (A. E. Verrill, 1875): synonym of Okenia aspersa (Alder & Hancock, 1845)
* Okenia quadricornis (Montagu, 1815): synonym of Okenia aspersa (Alder & Hancock, 1845)