[unassigned] Cladobranchia (temporary name )
[unassigned] Doridoidei (temporary name )
[unassigned] Polyceridae (temporary name )
“Montereina” sensu Dayrat, 2010 (unaccepted > unavailable name )
“Montereina” achroma (Á. Valdés, 2001) represented as Discodoris achroma Á. Valdés, 2001
“Montereina” aliciae (Dayrat, 2005) (unaccepted )
“Montereina” aurea (Eliot, 1903) represented as Peltodoris aurea Eliot, 1904
“Montereina” aurila (Marcus & Marcus, 1967) represented as Diaulula aurila (Marcus & Marcus, 1967)
“Montereina” branneri (MacFarland, 1909) represented as Discodoris branneri MacFarland, 1909
“Montereina” coerulescens (Bergh, 1888) represented as Discodoris coerulescens Bergh, 1888
“Montereina” concinna (Alder & Hancock, 1864) represented as Discodoris concinna (Alder & Hancock, 1864)
“Montereina” crucis (Mörch, 1863) represented as Discodoris crucis (Mörch, 1863)
“Montereina” erubescens (Bergh, 1884) represented as Discodoris erubescens Bergh, 1884
“Montereina” flindersi (Burn, 1962) represented as Anisodoris flindersi Burn, 1962 accepted as Diaulula flindersi (Burn, 1962)
“Montereina” golaia (Marcus & Marcus, 1966) represented as Discodoris golaia Ev. Marcus & Er. Marcus, 1966
“Montereina” greeleyi (MacFarland, 1909) represented as Diaulula greeleyi (MacFarland, 1909)
“Montereina” igla (Marcus & Marcus, 1967) represented as Peltodoris hummelincki igla Marcus & Marcus, 1967
“Montereina” labifera (Abraham, 1877) represented as Discodoris labifera (Abraham, 1877)
“Montereina” lancei (Millen & Bertsch, 2000) represented as Peltodoris lancei Millen & Bertsch, 2000
“Montereina” lentiginosa (Millen, 1982) represented as Diaulula lentiginosa (Millen, 1982) accepted as Peltodoris lentiginosa (Millen, 1982)
“Montereina” lippa (Á. Valdés, 2001) represented as Peltodoris lippa Á. Valdés, 2001
“Montereina” modesta (Bergh, 1877) represented as Discodoris modesta Bergh, 1877
“Montereina” mortenseni (Ev. Marcus & Er. Marcus, 1963) represented as Discodoris mortenseni Ev. Marcus & Er. Marcus, 1963
“Montereina” muta (Bergh, 1877) represented as Discodoris muta Bergh, 1877
“Montereina” notha (Bergh, 1877) represented as Discodoris notha Bergh, 1877
“Montereina” opisthidia (Bergh, 1877) represented as Discodoris opisthidia Bergh, 1877
“Montereina” pallida (Baba, 1937) represented as Discodoris pallida Baba, 1937
“Montereina” pardalis (Alder & Hancock, 1864) represented as Discodoris pardalis (Alder & Hancock, 1864)
“Montereina” paroa (Burn, 1969) represented as Discodoris paroa Burn, 1969
“Montereina” phoca (Ev. Marcus & Er. Marcus, 1967) represented as Diaulula phoca (Ev. Marcus & Er. Marcus, 1967)
“Montereina” punctifera (Abraham, 1877) represented as Peltodoris punctifera (Abraham, 1877)
“Montereina” purcina (Ev. Marcus & Er. Marcus, 1967) represented as Discodoris purcina Ev. Marcus & Er. Marcus, 1967
“Montereina” rubra (Bergh, 1905) represented as Peltodoris rubra (Bergh, 1905)
Abrancha Hasselt, 1824 (uncertain > taxon inquirendum )
Abranchus [sic] accepted as Abrancha Hasselt, 1824
Abronica Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016
Abronica abronia (MacFarland, 1966)
Abronica purpureoanulata (Baba, 1961)
Abronicidae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl & Picton, 2017
Acanthodoris J. E. Gray, 1850
Acanthodoris armata O'Donoghue, 1927 (uncertain > taxon inquirendum )
Acanthodoris atrogriseata O'Donoghue, 1927
Acanthodoris brunnea MacFarland, 1905
Acanthodoris caerulescens Bergh, 1880 (uncertain > taxon inquirendum )
Acanthodoris citrina A. E. Verrill, 1879 accepted as Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris columbina MacFarland, 1926 accepted as Acanthodoris nanaimoensis O'Donoghue, 1921
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 ornata A. E. Verrill, 1879 accepted as Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris pallida Bergh, 1905 accepted as Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris pilosa var. albescens Bergh, 1880 accepted as Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris pilosa var. novaezealandiae Bergh, 1905 accepted as Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris pilosa var. pallida Bergh, 1905 accepted as Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris pilosa var. purpurea Bergh, 1880 accepted as 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 serpentinotus G. C. Williams & Gosliner, 1979 accepted as Acanthodoris pina Ev. Marcus & Er. Marcus, 1967
Acanthodoris stohleri Lance, 1968 accepted as Acanthodoris pina Ev. Marcus & Er. Marcus, 1967
Acanthodoris subquadrata (Alder & Hancock, 1845) accepted as Acanthodoris pilosa (Abildgaard, 1789)
Acanthodoris uchidai Baba, 1935
Acanthodoris vatheleti Mabille & Rochebrune, 1889 (uncertain > nomen dubium )
Acanthopsole Trinchese, 1874 accepted as Facelina Alder & Hancock, 1855
Acanthopsole albida Bergh, 1882
Acanthopsole lugubris Bergh, 1882 accepted as Facelina lugubris (Bergh, 1882)
Acanthopsole pselliotes Labbé, 1923 accepted as Pruvotfolia pselliotes (Labbé, 1923)
Acanthopsole quatrefagesi Vayssière, 1888 accepted as Caloria quatrefagesi (Vayssière, 1888)
Acanthopsole rubrovittata (A. Costa, 1866) accepted as Facelina rubrovittata (A. Costa, 1866)
Acanthopsole schwobi Labbé, 1923 accepted as Facelina schwobi (Labbé, 1923)
Acanthopsole vicina Bergh, 1882 accepted as Facelina vicina (Bergh, 1882)
Acleioprocta accepted as Fionoidea Gray, 1857
Actinocyclidae O'Donoghue, 1929
Actinocyclus Ehrenberg, 1831
Actinocyclus fragilis Ehrenberg, 1831 (uncertain > unassessed )
Actinocyclus laevis (Bergh, 1890) accepted as Actinocyclus verrucosus Ehrenberg, 1831
Actinocyclus papillatus (Bergh, 1878)
Actinocyclus velutinus Ehrenberg, 1831 (uncertain > unassessed )
Actinocyclus verrucosus Ehrenberg, 1831
Actinodoris Ehrenberg, 1831 accepted as Chromodoris Alder & Hancock, 1855
Actinodoris australis Angas, 1864 accepted as Dendrodoris nigra (W. Stimpson, 1855)
Actinodoris krusensternii J. E. Gray, 1850 accepted as Dendrodoris krusensternii (J. E. Gray, 1850)
Actinodoris sponsa (Ehrenberg, 1831) accepted as Chromodoris sponsa (Ehrenberg, 1831)
Actinodoris tilesii J. E. Gray, 1850 accepted as Dendrodoris fumata (Rüppell & Leuckart, 1830)
Acura H. Adams & A. Adams, 1854 (uncertain > taxon inquirendum )
Acura pelagica A. Adams, 1854 (uncertain > taxon inquirendum )
Adalaria Bergh, 1878
Adalaria albopapillosa (Dall, 1871) accepted as Adalaria proxima (Alder & Hancock, 1854)
Adalaria beringi (Volodchenko, 1941) accepted as Onchidoris beringi (Volodchenko, 1941)
Adalaria boussoleana Ekimova, Grishina & Nikitenko, 2024
Adalaria derjugini Volodchenko, 1941 accepted as Onchidoris derjugini (Volodchenko, 1941) †
Adalaria evincta Millen, 2006 accepted as Onchidoris evincta (Millen, 2006)
Adalaria jannae Millen, 1987 accepted as Atalodoris jannae (Millen, 1987)
Adalaria jannaella Martynov, N. Sanamyan & Korshunova, 2015 accepted as Atalodoris jannaella (Martynov, N. Sanamyan & Korshunova, 2015)