• Abronica abronia (MacFarland, 1966): on sessile prey
• Abronica payaso A. Y. Kim & Gosliner, 2024: on sessile prey
• Abronica purpureoanulata (Baba, 1961): on sessile prey
• Abronica turon A. Y. Kim & Gosliner, 2024: on sessile prey
• Acanthodoris atrogriseata O'Donoghue, 1927: on sessile prey
• Acanthodoris brunnea MacFarland, 1905: on sessile prey
• Acanthodoris falklandica Eliot, 1907: on sessile prey
• Acanthodoris globosa Abraham, 1877: on sessile prey
• Acanthodoris hudsoni MacFarland, 1905: on sessile prey
• Acanthodoris lutea MacFarland, 1925: on sessile prey
• Acanthodoris metulifera Bergh, 1905: on sessile prey
• Acanthodoris mollicella Abraham, 1877: on sessile prey
• Acanthodoris nanaimoensis O'Donoghue, 1921: on sessile prey
• Acanthodoris nanega Burn, 1969: on sessile prey
• Acanthodoris pilosa (Abildgaard, 1789): on sessile prey
• Acanthodoris pina Ev. Marcus & Er. Marcus, 1967: on sessile prey
• Acanthodoris planca Fahey & Á. Valdés, 2005: on sessile prey
• Acanthodoris rhodoceras T. D. A. Cockerell, 1905: on sessile prey
• Acanthomira uchidai (Baba, 1935): on sessile prey
• Aclyvolva coarctata (G. B. Sowerby II, 1848): on sessile prey
• Aclyvolva granularis Ma, 1986: on sessile prey
• Aclyvolva lanceolata (G. B. Sowerby II, 1849): on sessile prey
• Aclyvolva rubracarinata Fehse, 2018: on sessile prey
• Actinocyclus papillatus (Bergh, 1878): on sessile prey
• Actinocyclus verrucosus Ehrenberg, 1831: on sessile prey
• Adalaria boussoleana Ekimova, Grishina & Nikitenko, 2024: on sessile prey
• Adalaria loveni (Alder & Hancock, 1862): on sessile prey
• Adalaria neptuni Martynov & Korshunova, 2022: on sessile prey
• Adalaria olgae Martynov, Korshunova, Sanamyan & Sanamyan, 2009: on sessile prey
• Adalaria proxima (Alder & Hancock, 1854): on sessile prey
• Adalaria rossica Martynov & Korshunova, 2017: on sessile prey
• Adalaria sergeii Martynov & Korshunova, 2022: on sessile prey
• Adalaria slavi Martynov, Korshunova, Sanamyan & Sanamyan, 2009: on sessile prey
• Adalaria tschuktschica A. Krause, 1885: on sessile prey
• Adalaria ultima Martynov & Korshunova, 2017: on sessile prey
• Adfacelina medinai Millen & Hermosillo, 2012: on sessile prey
• Aegires absalaoi F. J. Garcia, Troncoso & Dominguez, 2002: on sessile prey
• Aegires acauda Ortea, Moro & Espinosa, 2015: on sessile prey
• Aegires albopunctatus MacFarland, 1905: on sessile prey
• Aegires albus Thiele, 1912: on sessile prey
• Aegires citrinus Pruvot-Fol, 1930: on sessile prey
• Aegires corrugatus Ortea, Moro & Espinosa, 2015: on sessile prey
• Aegires evorae Moro & Ortea, 2015: on sessile prey
• Aegires exeches Fahey & Gosliner, 2004: on sessile prey
• Aegires flores Fahey & Gosliner, 2004: on sessile prey
• Aegires gomezi Ortea, Luque & Templado, 1990: on sessile prey
• Aegires gracilis Ortea, Moro & Espinosa, 2015: on sessile prey
• Aegires hapsis Fahey & Gosliner, 2004: on sessile prey
• Aegires incisus (G. O. Sars, 1872): on sessile prey
• Aegires incusus Fahey & Gosliner, 2004: on sessile prey
• Aegires lagrifaensis Ortea, Moro & Espinosa, 2015: on sessile prey
• Aegires lemoncello Fahey & Gosliner, 2004: on sessile prey
• Aegires leuckartii Vérany, 1853: on sessile prey
• Aegires malinus Fahey & Gosliner, 2004: on sessile prey
• Aegires ninguis Fahey & Gosliner, 2004: on sessile prey
• Aegires ochum Ortea, Espinosa & Caballer, 2013: on sessile prey
• Aegires ortizi Templado, Luque & Ortea, 1987: on sessile prey
• Aegires palensis Ortea, Luque & Templado, 1990: on sessile prey
• Aegires petalis Fahey & Gosliner, 2004: on sessile prey
• Aegires punctilucens (A. d'Orbigny, 1837): on sessile prey
• Aegires villosus Farran, 1905: on sessile prey
• Aeolidia campbellii (Cunningham, 1871): on sessile prey
• Aeolidia collaris Odhner, 1922: on sessile prey
• Aeolidia filomenae Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016: on sessile prey
• Aeolidia libitinaria Á. Valdés, Lundsten & N. G. Wilson, 2018: on sessile prey
• Aeolidia loui Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016: on sessile prey
• Aeolidia papillosa (Linnaeus, 1761): on sessile prey
• Aeolidiella albopunctata G.-Y. Lin, 1992: on sessile prey
• Aeolidiella alderi (Cocks, 1852): on sessile prey
• Aeolidiella drusilla Bergh, 1900: on sessile prey
• Aeolidiella glauca (Alder & Hancock, 1845): on sessile prey
• Aeolidiella rubra (Cantraine, 1835): on sessile prey
• Aeolidiella sanguinea (Norman, 1877): on sessile prey
• Aeolidiopsis harrietae Rudman, 1982: on sessile prey
• Aeolidiopsis palythoae (Gosliner, 1985): on sessile prey
• Aeolidiopsis ransoni Pruvot-Fol, 1956: on sessile prey
• Agariste compressa (Cantraine, 1835) †: on sessile prey
• Agariste juliencilisi Landau, Marquet & Grigis, 2003 †: on sessile prey
• Agariste phrygium (D. G. Herbert & Kilburn, 1986): on sessile prey
• Akiodoris lutescens Bergh, 1879: on sessile prey
• Akiodoris salacia Millen, 2005: on sessile prey
• Akleistostoma walleri Petuch, Berschauer & R. F. Myers, 2018 †: on sessile prey
• Akoya akoya (Kuroda, 1942): on sessile prey
• Akoya haliarchus (Melvill, 1889): on sessile prey
• Akoya platinum (Dall, 1890): on sessile prey
• Akoya zhui Vilvens, 2024: on sessile prey
• Alaerato amamioshima C. N. Cate, 1977: on sessile prey
• Alaerato angistoma (G. B. Sowerby I, 1832): on sessile prey
• Alaerato angulifera (G. B. Sowerby II, 1859): on sessile prey
• Alaerato arbastoi Fehse, 2017: on sessile prey
• Alaerato atomaria Fehse, 2017: on sessile prey
• Alaerato bisinventa (Iredale, 1931): on sessile prey
• Alaerato elizabethae Fehse, 2013: on sessile prey
• Alaerato fedosovi Fehse, 2018: on sessile prey
• Alaerato fusconubecula Fehse, 2018: on sessile prey
• Alaerato gallinacea (Hinds, 1844): on sessile prey
• Alaerato mactanica (T. Cossignani & V. Cossignani, 1997): on sessile prey
• Alaerato maestratii Fehse, 2018: on sessile prey
• Alaerato palawanica (Fehse, 2011): on sessile prey
• Alaerato rafamatanantsoai Fehse, 2017: on sessile prey