• Abronica abronia (MacFarland, 1966)
• Abronica payaso A. Y. Kim & Gosliner, 2024
• Abronica purpureoanulata (Baba, 1961)
• Abronica turon A. Y. Kim & Gosliner, 2024
• Acanthodoris atrogriseata O'Donoghue, 1927
• Acanthodoris brunnea MacFarland, 1905
• Acanthodoris falklandica Eliot, 1907
• Acanthodoris globosa Abraham, 1877
• Acanthodoris hudsoni MacFarland, 1905
• Acanthodoris lutea MacFarland, 1925
• Acanthodoris metulifera Bergh, 1905
• Acanthodoris mollicella Abraham, 1877
• Acanthodoris nanaimoensis O'Donoghue, 1921
• Acanthodoris nanega Burn, 1969
• Acanthodoris pilosa (Abildgaard, 1789)
• Acanthodoris pina Ev. Marcus & Er. Marcus, 1967
• Acanthodoris planca Fahey & Á. Valdés, 2005
• Acanthodoris rhodoceras T. D. A. Cockerell, 1905
• Acanthodoris uchidai Baba, 1935 accepted as Acanthomira uchidai (Baba, 1935)
• Acanthomira uchidai (Baba, 1935)
• Actinocyclus fragilis Ehrenberg, 1831 (uncertain > unassessed)
• Actinocyclus papillatus (Bergh, 1878)
• Actinocyclus velutinus Ehrenberg, 1831 (uncertain > unassessed)
• Actinocyclus verrucosus Ehrenberg, 1831
• Adalaria boussoleana Ekimova, Grishina & Nikitenko, 2024
• Adalaria loveni (Alder & Hancock, 1862)
• Adalaria neptuni Martynov & Korshunova, 2022
• Adalaria olgae Martynov, Korshunova, Sanamyan & Sanamyan, 2009
• Adalaria proxima (Alder & Hancock, 1854)
• Adalaria rossica Martynov & Korshunova, 2017
• Adalaria sergeii Martynov & Korshunova, 2022
• Adalaria slavi Martynov, Korshunova, Sanamyan & Sanamyan, 2009
• Adalaria tschuktschica A. Krause, 1885
• Adalaria ultima Martynov & Korshunova, 2017
• Adfacelina medinai Millen & Hermosillo, 2012
• Aegires absalaoi F. J. Garcia, Troncoso & Dominguez, 2002
• Aegires acauda Ortea, Moro & Espinosa, 2015
• Aegires albopunctatus MacFarland, 1905
• Aegires albus Thiele, 1912
• Aegires citrinus Pruvot-Fol, 1930
• Aegires corrugatus Ortea, Moro & Espinosa, 2015
• Aegires evorae Moro & Ortea, 2015
• Aegires exeches Fahey & Gosliner, 2004
• Aegires flores Fahey & Gosliner, 2004
• Aegires gomezi Ortea, Luque & Templado, 1990
• Aegires gracilis Ortea, Moro & Espinosa, 2015
• Aegires hapsis Fahey & Gosliner, 2004
• Aegires incisus (G. O. Sars, 1872)
• Aegires incusus Fahey & Gosliner, 2004
• Aegires lagrifaensis Ortea, Moro & Espinosa, 2015
• Aegires lemoncello Fahey & Gosliner, 2004
• Aegires leuckartii Vérany, 1853
• Aegires malinus Fahey & Gosliner, 2004
• Aegires ninguis Fahey & Gosliner, 2004
• Aegires ochum Ortea, Espinosa & Caballer, 2013
• Aegires ortizi Templado, Luque & Ortea, 1987
• Aegires palensis Ortea, Luque & Templado, 1990
• Aegires petalis Fahey & Gosliner, 2004
• Aegires punctilucens (A. d'Orbigny, 1837)
• Aegires sublaevis Odhner, 1932
• Aegires villosus Farran, 1905
• Aeolidia campbellii (Cunningham, 1871)
• Aeolidia collaris Odhner, 1922
• Aeolidia filomenae Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016
• Aeolidia libitinaria Á. Valdés, Lundsten & N. G. Wilson, 2018
• Aeolidia loui Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016
• Aeolidia papillosa (Linnaeus, 1761)
• Aeolidiella albopunctata G.-Y. Lin, 1992
• Aeolidiella alderi (Cocks, 1852)
• Aeolidiella drusilla Bergh, 1900
• Aeolidiella glauca (Alder & Hancock, 1845)
• Aeolidiella rubra (Cantraine, 1835)
• Aeolidiella sanguinea (Norman, 1877)
• Aeolidiopsis harrietae Rudman, 1982
• Aeolidiopsis palythoae (Gosliner, 1985)
• Aeolidiopsis ransoni Pruvot-Fol, 1956
• Akiodoris lutescens Bergh, 1879
• Akiodoris salacia Millen, 2005
• Aldisa alabastrina (J. G. Cooper, 1863)
• Aldisa albatrossae Elwood, Á. Valdés & Gosliner, 2000
• Aldisa albomarginata Millen, 1985
• Aldisa andersoni Gosliner & Behrens, 2004
• Aldisa banyulensis Pruvot-Fol, 1951
• Aldisa barlettai Ortea & Ballesteros, 1989
• Aldisa benguelae Gosliner, 1985
• Aldisa binotata Pruvot-Fol, 1953
• Aldisa cooperi Robilliard & Baba, 1972
• Aldisa erwinkoehleri Perrone, 2001
• Aldisa expleta Ortea, J. M. Pérez & Llera, 1982
• Aldisa fragaria Tibiriçá, Pola & Cervera, 2017
• Aldisa pikokai Bertsch & S. Johnson, 1982
• Aldisa puntallanensis Moro & Ortea, 2011
• Aldisa sanguinea (J. G. Cooper, 1863)
• Aldisa smaragdina Ortea, J. M. Pérez & Llera, 1982
• Aldisa tara Millen, 1985
• Aldisa theveneti Á. Valdés, Stout & M. Kim, 2022
• Aldisa trentinae Á. Valdés, Stout & M. Kim, 2022
• Aldisa trimaculata Gosliner, 1985
• Aldisa williamsi Elwood, Á. Valdés & Gosliner, 2000
• Aldisa zavorensis Tibiriçá, Pola & Cervera, 2017