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- Mollusca (132 754)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (24 992)
- Class Caudofoveata (143)
- Class Cephalopoda (1 832)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 679)
- Subclass Amphigastropoda † (387)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 623)
- Subclass Gastropoda incertae sedis (308)
- Subclass Heterobranchia (39 154)
- Infraclass "Lower Heterobranchia" (1 137)
- Infraclass Euthyneura (37 431)
- Subterclass Acteonimorpha (411)
- Subterclass Ringipleura (2 917)
- Superorder Nudipleura (2 748)
- Order Notaspidea accepted as Pleurobranchomorpha
- Order Nudibranchia (2 651)
- Suborder Aeolidina accepted as Cladobranchia
- Suborder Anthobranchia accepted as Doridina
- Suborder Cladobranchia (1 092)
- Suborder Cladohepatica accepted as Cladobranchia
- Suborder Dexiarchia accepted as Cladobranchia
- Suborder Doridina (1 558)
- Infraorder Bathydoridoidei (8)
- Infraorder Doridoidei (1 550)
- Superfamily Chromodoridoidea Bergh, 1891 (482)
- Superfamily Doridoidea Rafinesque, 1815 (434)
- Family Archidorididae Bergh, 1891 accepted as Dorididae Rafinesque, 1815
- Family Diaululidae Bergh, 1891 accepted as Discodorididae Bergh, 1891
- Family Discodorididae Bergh, 1891 (355)
- Family Dorididae Rafinesque, 1815 (79)
- Genus Archidoris Bergh, 1878 (3)
- Genus Artachaea Bergh, 1881 (1)
- Genus Austrodoris Odhner, 1926 (1)
- Genus Conualevia Collier & Farmer, 1964 (3)
- Genus Ctenodoris Eliot, 1907 accepted as Doriopsis Pease, 1860
- Genus Doridigitata A. d'Orbigny, 1839 accepted as Doris Linnaeus, 1758
- Genus Doriopsis Pease, 1860 (11)
- Genus Doriorbis Kay & D. K. Young, 1969 accepted as Doris Linnaeus, 1758
- Genus Doris Linnaeus, 1758 (55)
- Subgenus Doris (Acanthochila) Mörch, 1868 accepted as Cadlina Bergh, 1879
- Subgenus Doris (Actinodoris) Ehrenberg, 1831 accepted as Actinodoris Ehrenberg, 1831
- Subgenus Doris (Adalaria) Bergh, 1878 accepted as Adalaria Bergh, 1878
- Subgenus Doris (Anoplodoris) P. Fischer, 1883 accepted as Doris Linnaeus, 1758
- Subgenus Doris (Asteronotus) Ehrenberg, 1831 accepted as Asteronotus Ehrenberg, 1831
- Subgenus Doris (Ctenodoris) Eliot, 1907 accepted as Doriopsis Pease, 1860
- Subgenus Doris (Dendrodoris) Ehrenberg, 1831 accepted as Dendrodoris Ehrenberg, 1831
- Subgenus Doris (Doridigitata) A. d'Orbigny, 1839 accepted as Doris Linnaeus, 1758
- Subgenus Doris (Doriprismatica) A. d'Orbigny, 1839 accepted as Doriprismatica A. d'Orbigny, 1839
- Subgenus Doris (Glossodoris) Ehrenberg, 1831 accepted as Glossodoris Ehrenberg, 1831
- Subgenus Doris (Platydoris) Bergh, 1877 accepted as Platydoris Bergh, 1877
- Subgenus Doris (Pterodoris) Ehrenberg, 1831 accepted as Hypselodoris W. Stimpson, 1855
- Subgenus Doris (Rhabdochila) P. Fischer, 1883 accepted as Rostanga Bergh, 1879
- Subgenus Doris (Rhacodoris) Mörch, 1863 accepted as Hexabranchus Ehrenberg, 1828
- Species Doris acerico Ortea & Espinosa, 2017
- Species Doris adrianae Urgorri & Señarís, 2021
- Species Doris affinis Gmelin, 1791 accepted as Flabellina affinis (Gmelin, 1791)
- Species Doris alabastrina J. G. Cooper, 1863 accepted as Aldisa alabastrina (J. G. Cooper, 1863)
- Species Doris alba van Hasselt, 1824
- Species Doris albescens R. A. Philippi, 1836 accepted as Felimida purpurea (Risso, 1831)
- Species Doris albolimbata Rüppell & Leuckart, 1830
- Species Doris albopunctata J. G. Cooper, 1863 accepted as Doriopsilla albopunctata (J. G. Cooper, 1863)
- Species Doris albopustulosa Pease, 1860 accepted as Goniobranchus albopustulosus (Pease, 1860)
- Species Doris alboranica Bouchet, 1977
- Species Doris amabilis Kelaart, 1858 accepted as Chromodoris aspersa (A. Gould, 1852)
- Species Doris amarilla Pöppig, 1829
- Species Doris ananas P. Lima, Tibiriçá & Simone, 2016
- Species Doris angustipes Mörch, 1863 accepted as Platydoris angustipes (Mörch, 1863)
- Species Doris antarctica Hedley, 1916
- Species Doris apiculata Alder & Hancock, 1864 accepted as Sclerodoris apiculata (Alder & Hancock, 1864)
- Species Doris arborescens O. F. Müller, 1776 accepted as Dendronotus frondosus (Ascanius, 1774)
- Species Doris arbutus Angas, 1864 accepted as Rostanga arbutus (Angas, 1864)
- Species Doris areolata Alder & Hancock, 1864 accepted as Dendrodoris areolata (Alder & Hancock, 1864)
- Species Doris areolata Stuwitz, 1836 accepted as Doris pseudoargus Rapp, 1827
- Species Doris argo Linnaeus, 1767 accepted as Platydoris argo (Linnaeus, 1767)
- Species Doris aspera Alder & Hancock, 1842 accepted as Onchidoris muricata (O. F. Müller, 1776)
- Species Doris aspera (Risbec, 1928)
- Species Doris aspersa A. Gould, 1852 accepted as Chromodoris aspersa (A. Gould, 1852)
- Species Doris atrata Kelaart, 1858 accepted as Dendrodoris fumata (Rüppell & Leuckart, 1830)
- Species Doris atromarginata Cuvier, 1804 accepted as Doriprismatica atromarginata (Cuvier, 1804)
- Species Doris atroviridis Kelaart, 1858 accepted as Dendrodoris nigra (W. Stimpson, 1855)
- Species Doris atypica (Eliot, 1906)
- Species Doris aurantiaca Eliot, 1913 accepted as Doris granulosa (Pease, 1860)
- Species Doris aurata Forbes, 1844
- Species Doris aurea Quoy & Gaimard, 1832 accepted as Doriopsilla aurea (Quoy & Gaimard, 1832)
- Species Doris auriculata O. F. Müller, 1776 accepted as Facelina auriculata (O. F. Müller, 1776)
- Species Doris aurita A. Gould, 1852 accepted as Gymnodoris aurita (A. Gould, 1852)
- Species Doris barnardi Collingwood, 1868 accepted as Chromodoris barnardi (Collingwood, 1868)
- Species Doris barvicensis G. Johnston, 1838 accepted as Goniodoris nodosa (Montagu, 1808)
- Species Doris beaumonti Farran, 1903 accepted as Diaphorodoris luteocincta (M. Sars, 1870)
- Species Doris berghi (Vayssière, 1901)
- Species Doris beringiensis (Martynov, Sanamyan & Korshunova, 2015)
- Species Doris bertheloti A. d'Orbigny, 1839
- Species Doris bicolor (Bergh, 1884)
- Species Doris bifida Montagu, 1816 accepted as Hermaea bifida (Montagu, 1816)
- Species Doris bifida A. E. Verrill, 1870 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris bilamellata Linnaeus, 1767 accepted as Onchidoris bilamellata (Linnaeus, 1767)
- Species Doris biscayensis P. Fischer, 1872 accepted as Doris verrucosa Linnaeus, 1758
- Species Doris bistellata A. E. Verrill, 1900 accepted as Aphelodoris antillensis Bergh, 1879
- Species Doris bodoensis Gunnerus, 1770 accepted as Aeolidia papillosa (Linnaeus, 1761)
- Species Doris bovena Er. Marcus, 1955
- Species Doris branchialis Rathke, 1806 accepted as Favorinus branchialis (Rathke, 1806)
- Species Doris brittanica G. Johnston, 1838 accepted as Doris pseudoargus Rapp, 1827
- Species Doris caeca (Á. Valdés, 2001)
- Species Doris caerulea Montagu, 1804 accepted as Tenellia caerulea (Montagu, 1804)
- Species Doris caerulea Risso, 1826 accepted as Felimare villafranca (Risso, 1818)
- Species Doris calcarae Vérany, 1846 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris cameroni (J. K. Allan, 1947)
- Species Doris canariensis A. d'Orbigny, 1839 accepted as Platydoris argo (Linnaeus, 1767)
- Species Doris capensis (Bergh, 1907)
- Species Doris carbunculosa Kelaart, 1858 accepted as Dendrodoris carbunculosa (Kelaart, 1858)
- Species Doris cardinalis A. Gould, 1852 accepted as Hexabranchus sandwichensis J. E. Gray, 1850
- Species Doris carinata Quoy & Gaimard, 1832 accepted as Atagema carinata (Quoy & Gaimard, 1832)
- Species Doris carinata Alder & Hancock, 1864
- Species Doris carneola Angas, 1864 accepted as Doriopsilla carneola (Angas, 1864)
- Species Doris castanea Kelaart, 1858 accepted as Sclerodoris tuberculata Eliot, 1904
- Species Doris cerebralis A. Gould, 1852
- Species Doris cervina Gmelin, 1791 accepted as Dendronotus frondosus (Ascanius, 1774)
- Species Doris cespitosus van Hasselt, 1824 accepted as Asteronotus cespitosus (van Hasselt, 1824)
- Species Doris chilensis Abraham, 1877
- Species Doris chrysoderma Angas, 1864
- Species Doris claurina (Er. Marcus, 1959)
- Species Doris clavigera O. F. Müller, 1776 accepted as Limacia clavigera (O. F. Müller, 1776)
- Species Doris coccinea Forbes, 1848 accepted as Rostanga rubra (Risso, 1818)
- Species Doris coerulea Risso, 1818 accepted as Felimare villafranca (Risso, 1818)
- Species Doris complanata A. E. Verrill, 1880 accepted as Geitodoris planata (Alder & Hancock, 1846)
- Species Doris concinna Alder & Hancock, 1864 accepted as Discodoris concinna (Alder & Hancock, 1864)
- Species Doris cornuta Rathke, 1806 accepted as Polycera quadrilineata (O. F. Müller, 1776)
- Species Doris coronata Gmelin, 1791 accepted as Doto coronata (Gmelin, 1791)
- Species Doris crescentica Collingwood, 1881
- Species Doris crucis Mörch, 1863 accepted as Discodoris crucis (Mörch, 1863)
- Species Doris cruenta Quoy & Gaimard, 1832 accepted as Platydoris cruenta (Quoy & Gaimard, 1832)
- Species Doris debilis Pease, 1871 accepted as Dendrodoris nigra (W. Stimpson, 1855)
- Species Doris decora Pease, 1860 accepted as Goniobranchus decorus (Pease, 1860)
- Species Doris delicata Abraham, 1877 accepted as Tyrinna delicata (Abraham, 1877)
- Species Doris denisoni Angas, 1864 accepted as Dendrodoris krusensternii (J. E. Gray, 1850)
- Species Doris depressa Alder & Hancock, 1842 accepted as Idaliadoris depressa (Alder & Hancock, 1842)
- Species Doris derelicta P. Fischer, 1867 accepted as Doris verrucosa Linnaeus, 1758
- Species Doris diademata A. Gould, 1870 accepted as Onchidoris diademata (A. Gould, 1870)
- Species Doris diaphana Alder & Hancock, 1845 accepted as Onchidoris muricata (O. F. Müller, 1776)
- Species Doris diardi Kelaart, 1859 accepted as Hypselodoris infucata (Rüppell & Leuckart, 1830)
- Species Doris dorsalis A. Gould, 1852 accepted as Mexichromis lemniscata (Quoy & Gaimard, 1832)
- Species Doris echinata Pease, 1860 accepted as Atagema echinata (Pease, 1860)
- Species Doris echinata O'Donoghue, 1922 accepted as Diaulula odonoghuei (Steinberg, 1963)
- Species Doris elegans Cantraine, 1835 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris elegans Quoy & Gaimard, 1832 accepted as Glossodoris elegans (Quoy & Gaimard, 1832)
- Species Doris elegantula R. A. Philippi, 1844 accepted as Felimida elegantula (R. A. Philippi, 1844)
- Species Doris elizabethina Kelaart, 1859 accepted as Dendrodoris elizabethina (Kelaart, 1859)
- Species Doris ellioti Alder & Hancock, 1864 accepted as Platydoris ellioti (Alder & Hancock, 1864)
- Species Doris elongata W. Thompson, 1840 accepted as Goniodoris nodosa (Montagu, 1808)
- Species Doris eolida Quoy & Gaimard, 1832 accepted as Ceratodoris eolida (Quoy & Gaimard, 1832)
- Species Doris eubalia P. Fischer, 1872 accepted as Doris sticta (Iredale & O'Donoghue, 1923)
- Species Doris excavata Pease, 1860
- Species Doris fabrei Crosse, 1875
- Species Doris falklandica (Eliot, 1907)
- Species Doris fasciculata Müller, 1776
- Species Doris fasciculata Gmelin, 1791 accepted as Fiona pinnata (Eschscholtz, 1831)
- Species Doris fidelis Kelaart, 1858 accepted as Goniobranchus fidelis (Kelaart, 1858)
- Species Doris fimbriata Delle Chiaje, 1841 accepted as Kaloplocamus ramosus (Cantraine, 1835)
- Species Doris flabellifera Cheeseman, 1881 accepted as Doris granulosa (Pease, 1860)
- Species Doris flammea Alder & Hancock, 1844
- Species Doris flammulatus Quoy & Gaimard, 1832 accepted as Hexabranchus lacer (Cuvier, 1804)
- Species Doris flava Montagu, 1804 accepted as Polycera quadrilineata (O. F. Müller, 1776)
- Species Doris flavipes Leuckart, 1828 accepted as Doris pseudoargus Rapp, 1827
- Species Doris flemingii Forbes, 1838 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris fontainei [sic] accepted as Doris fontainii A. d'Orbigny, 1836
- Species Doris fontainii A. d'Orbigny, 1836
- Species Doris formosa Alder & Hancock, 1864 accepted as Platydoris formosa (Alder & Hancock, 1864)
- Species Doris fragilis Alder & Hancock, 1864 accepted as Sebadoris fragilis (Alder & Hancock, 1864)
- Species Doris fretterae T. E. Thompson, 1980
- Species Doris fulva (Eliot, 1907)
- Species Doris fumata Rüppell & Leuckart, 1830 accepted as Dendrodoris fumata (Rüppell & Leuckart, 1830)
- Species Doris fumosa Quoy & Gaimard, 1832
- Species Doris funebris Kelaart, 1858 accepted as Jorunna funebris (Kelaart, 1858)
- Species Doris fusca O. F. Müller, 1776 accepted as Onchidoris bilamellata (Linnaeus, 1767)
- Species Doris fuscescens Pease, 1871 accepted as Hallaxa fuscescens (Pease, 1871)
- Species Doris glabella Bergh, 1907 accepted as Discodoris glabella (Bergh, 1907)
- Species Doris glabra Friele & A. Hansen, 1876 accepted as Cadlina glabra (Friele & A. Hansen, 1876)
- Species Doris gleniei Kelaart, 1858 accepted as Goniobranchus gleniei (Kelaart, 1858)
- Species Doris gloriosa Kelaart, 1858 accepted as Hexabranchus lacer (Cuvier, 1804)
- Species Doris gracilis Rapp, 1827 accepted as Felimare villafranca (Risso, 1818)
- Species Doris grandiflora Rapp, 1827 accepted as Dendrodoris grandiflora (Rapp, 1827)
- Species Doris grandiflora Pease, 1860 accepted as Hoplodoris grandiflora (Pease, 1860)
- Species Doris grandifloriger Abraham, 1877 accepted as Hoplodoris grandiflora (Pease, 1860)
- Species Doris granosa (Bergh, 1907)
- Species Doris granulata Ehrenberg, 1831 accepted as Sebadoris fragilis (Alder & Hancock, 1864)
- Species Doris granulosa (Pease, 1860) accepted as Doriopsis granulosa Pease, 1860
- Species Doris grisea Kelaart, 1858 accepted as Dendrodoris grisea (Kelaart, 1858)
- Species Doris grisea A. Gould, 1870 accepted as Onchidoris grisea (A. Gould, 1870)
- Species Doris guttata Risso, 1826 accepted as Dendrodoris grandiflora (Rapp, 1827)
- Species Doris hayeki Ortea, 1998
- Species Doris hepatica Abraham, 1877 accepted as Asteronotus hepaticus (Abraham, 1877)
- Species Doris hispida A. d'Orbigny, 1836 accepted as Diaulula hispida (A. d'Orbigny, 1836)
- Species Doris humberti Kelaart, 1858 accepted as Glossodoris humberti (Kelaart, 1858)
- Species Doris illuminata A. Gould, 1841 accepted as Polycera lessonii A. d'Orbigny, 1837
- Species Doris ilo (Er. Marcus, 1955)
- Species Doris immonda (Risbec, 1928)
- Species Doris imperialis Saville-Kent, 1897 accepted as Hexabranchus sanguineus (Rüppell & Leuckart, 1830)
- Species Doris impudica Rüppell & Leuckart, 1830 accepted as Gymnodoris impudica (Rüppell & Leuckart, 1830)
- Species Doris incii J. E. Gray, 1850 accepted as Halgerda willeyi Eliot, 1904
- Species Doris inconspicua Alder & Hancock, 1851 accepted as Atalodoris inconspicua (Alder & Hancock, 1851)
- Species Doris inframaculata Abraham, 1877 accepted as Platydoris inframaculata (Abraham, 1877)
- Species Doris infranaevata Abraham, 1877 accepted as Platydoris argo (Linnaeus, 1767)
- Species Doris infrapicta E. A. Smith, 1884
- Species Doris infucata Rüppell & Leuckart, 1830 accepted as Hypselodoris infucata (Rüppell & Leuckart, 1830)
- Species Doris intecta Kelaart, 1858 accepted as Atagema intecta (Kelaart, 1858)
- Species Doris januarii (Bergh, 1878)
- Species Doris johnstoni Alder & Hancock, 1845 accepted as Jorunna tomentosa (Cuvier, 1804)
- Species Doris juanformelli Ortea & Espinosa, 2017
- Species Doris kalkensis Barnard, 1927 accepted as Dendrodoris kalkensis (Barnard, 1927)
- Species Doris kerguelenensis (Bergh, 1884) accepted as Austrodoris kerguelenensis (Bergh, 1884)
- Species Doris kpone Edmunds, 2013
- Species Doris krebsii Mörch, 1863 accepted as Dendrodoris krebsii (Mörch, 1863)
- Species Doris krohni Vérany, 1846 accepted as Felimida krohni (Vérany, 1846)
- Species Doris kyolis (Ev. Marcus & Er. Marcus, 1967)
- Species Doris labifera Abraham, 1877 accepted as Discodoris labifera (Abraham, 1877)
- Species Doris laboutei (Á. Valdés, 2001)
- Species Doris lacera Abildgaard, 1806 accepted as Issena abildgaardi Pruvot-Fol, 1935
- Species Doris lacera Cuvier, 1804 accepted as Hexabranchus lacer (Cuvier, 1804)
- Species Doris lacinulata Müller, 1776
- Species Doris lacinulata Gmelin, 1791
- Species Doris laevis Linnaeus, 1767 accepted as Cadlina laevis (Linnaeus, 1767)
- Species Doris laevis J. E. Gray, 1850 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris lanuginata Abraham, 1877 accepted as Alloiodoris lanuginata (Abraham, 1877)
- Species Doris lemniscata Quoy & Gaimard, 1832 accepted as Mexichromis lemniscata (Quoy & Gaimard, 1832)
- Species Doris leoparda Kelaart, 1858
- Species Doris leuckarti Delle Chiaje, 1841 accepted as Doris pseudoargus Rapp, 1827
- Species Doris leuckartii Delle Chiaje, 1841 accepted as Doris pseudoargus Rapp, 1827
- Species Doris lilacina A. Gould, 1852 accepted as Tayuva lilacina (A. Gould, 1852)
- Species Doris limacina Quoy & Gaimard, 1832
- Species Doris limbata Cuvier, 1804 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris lineata Souleyet, 1852 accepted as Hypselodoris maridadilus Rudman, 1977
- Species Doris lineolata van Hasselt, 1824 accepted as Chromodoris lineolata (van Hasselt, 1824)
- Species Doris lockyerana Kelaart, 1859
- Species Doris longicornis Montagu, 1808 accepted as Facelina auriculata (O. F. Müller, 1776)
- Species Doris loveni Alder & Hancock, 1862 accepted as Adalaria loveni (Alder & Hancock, 1862)
- Species Doris luctuosa Cheeseman, 1882 accepted as Aphelodoris luctuosa (Cheeseman, 1882)
- Species Doris lugubris Gravenhorst, 1831 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris lugubris Ehrenberg, 1828 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris lutea Risso, 1826 accepted as Doris ocelligera (Bergh, 1881)
- Species Doris luteocincta M. Sars, 1870 accepted as Diaphorodoris luteocincta (M. Sars, 1870)
- Species Doris luteola Couthouy, 1852
- Species Doris luteola Kelaart, 1858 accepted as Taringa sublutea (Abraham, 1877)
- Species Doris luteorosea Rapp, 1827 accepted as Felimida luteorosea (Rapp, 1827)
- Species Doris lutescens Delle Chiaje, 1841 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris mabilla Abraham, 1877 accepted as Doris cespitosus van Hasselt, 1824
- Species Doris maccarthyi Kelaart, 1858 accepted as Doriprismatica atromarginata (Cuvier, 1804)
- Species Doris maculata Montagu, 1804 accepted as Doto maculata (Montagu, 1804)
- Species Doris maculata Garstang, 1896 accepted as Doris sticta (Iredale & O'Donoghue, 1923)
- Species Doris maculosa Cuvier, 1804
- Species Doris magellanica Cunningham, 1871
- Species Doris magnifica Quoy & Gaimard, 1832 accepted as Chromodoris magnifica (Quoy & Gaimard, 1832)
- Species Doris magnotuberculata (Martynov, Sanamyan & Korshunova, 2015)
- Species Doris marginata Montagu, 1804 accepted as Cadlina laevis (Linnaeus, 1767)
- Species Doris marginata Quoy & Gaimard, 1832 accepted as Hexabranchus lacer (Cuvier, 1804)
- Species Doris marginata Pease, 1860 accepted as Goniobranchus verrieri (Crosse, 1875)
- Species Doris marginatus Quoy & Gaimard, 1832 accepted as Hexabranchus lacer (Cuvier, 1804)
- Species Doris mariei Crosse, 1875 accepted as Dendrodoris nigra (W. Stimpson, 1855)
- Species Doris marmorata Risso, 1818
- Species Doris maura Forbes, 1840 accepted as Aegires punctilucens (A. d'Orbigny, 1837)
- Species Doris mauritiana Quoy & Gaimard, 1832
- Species Doris mera Alder & Hancock, 1844 accepted as Archidoris pseudoargus (Rapp, 1827)
- Species Doris millegrana Alder & Hancock, 1854 accepted as Aporodoris millegrana (Alder & Hancock, 1854)
- Species Doris minuta Edmunds, 2013
- Species Doris montereyensis J. G. Cooper, 1863
- Species Doris morenoi Ortea, 1989
- Species Doris muricata O. F. Müller, 1776 accepted as Onchidoris muricata (O. F. Müller, 1776)
- Species Doris murrea Abraham, 1877 accepted as Peltodoris murrea (Abraham, 1877)
- Species Doris muscula Abraham, 1877 accepted as Rostanga muscula (Abraham, 1877)
- Species Doris nanula (Bergh, 1904)
- Species Doris nardi Vérany, 1846 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris nardii Vérany, 1846 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris natalensis Krauss, 1848 accepted as Discodoris natalensis (Krauss, 1848)
- Species Doris nigra W. Stimpson, 1855 accepted as Dendrodoris nigra (W. Stimpson, 1855)
- Species Doris nigricans J. Fleming, 1820 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris nigricans Otto, 1823 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris nigromaculata T. D. A. Cockerell, 1905 accepted as Dendrodoris nigromaculata (T. D. A. Cockerell, 1905)
- Species Doris nobilis (Odhner, 1907)
- Species Doris nodosa Montagu, 1808 accepted as Goniodoris nodosa (Montagu, 1808)
- Species Doris nodulosa Angas, 1864 accepted as Carminodoris nodulosa (Angas, 1864)
- Species Doris nubilosa Pease, 1871 accepted as Sebadoris nubilosa (Pease, 1871)
- Species Doris nucleola Pease, 1860
- Species Doris oblonga Alder & Hancock, 1845 accepted as Knoutsodonta oblonga (Alder & Hancock, 1845)
- Species Doris obsoleta Rüppell & Leuckart, 1830 accepted as Goniobranchus obsoletus (Rüppell & Leuckart, 1830)
- Species Doris obvelata O. F. Müller, 1776 accepted as Cadlina laevis (Linnaeus, 1767)
- Species Doris obvelata G. Johnston, 1838 accepted as Jorunna tomentosa (Cuvier, 1804)
- Species Doris ocelligera (Bergh, 1881)
- Species Doris odhneri (MacFarland, 1966)
- Species Doris odonoghuei Steinberg, 1963 accepted as Diaulula odonoghuei (Steinberg, 1963)
- Species Doris olivacea A. E. Verrill, 1900 accepted as Onchidoris olivacea (A. E. Verrill, 1900)
- Species Doris orbignyi H. Adams & A. Adams, 1858 accepted as “Montereina” punctifera (Abraham, 1877)
- Species Doris ornata Ehrenberg, 1831 accepted as Atagema ornata (Ehrenberg, 1831)
- Species Doris ornata (A. d'Orbigny, 1837) accepted as Polycera quadrilineata (O. F. Müller, 1776)
- Species Doris orsinii Vérany, 1846 accepted as Felimare orsinii (Vérany, 1846)
- Species Doris osseosa Kelaart, 1858 accepted as Atagema osseosa (Kelaart, 1858)
- Species Doris pallida Rüppell & Leuckart, 1830 accepted as Glossodoris pallida (Rüppell & Leuckart, 1830)
- Species Doris pallida A. Gould, 1870
- Species Doris pantherina Angas, 1864 accepted as Jorunna pantherina (Angas, 1864)
- Species Doris pardalis Alder & Hancock, 1864 accepted as Discodoris pardalis (Alder & Hancock, 1864)
- Species Doris pareti Vérany, 1846 accepted as Goniodoris castanea Alder & Hancock, 1845
- Species Doris parrae Ortea, 2017
- Species Doris pasini Vérany, 1846 accepted as Felimare villafranca (Risso, 1818)
- Species Doris pecten Collingwood, 1881 accepted as Doriopsis pecten (Collingwood, 1881)
- Species Doris peculiaris Abraham, 1877 accepted as Doriopsilla peculiaris (Abraham, 1877)
- Species Doris pedata Montagu, 1816 accepted as Edmundsella pedata (Montagu, 1816)
- Species Doris pellucida Risso, 1826 accepted as Cadlina pellucida (Risso, 1826)
- Species Doris pennigera Montagu, 1813 accepted as Thecacera pennigera (Montagu, 1813)
- Species Doris peregrina Gmelin, 1791 accepted as Cratena peregrina (Gmelin, 1791)
- Species Doris perplexa Bergh, 1907 accepted as Discodoris perplexa (Bergh, 1907)
- Species Doris peruviana A. d'Orbigny, 1836 accepted as Baptodoris peruviana (A. d'Orbigny, 1836)
- Species Doris petechialis A. Gould, 1852 accepted as Goniobranchus petechialis A. Gould, 1852)
- Species Doris philippii Weinkauff, 1873 accepted as Jorunna tomentosa (Cuvier, 1804)
- Species Doris phyllophora Mörch, 1859
- Species Doris pickensi Ev. Marcus & Er. Marcus, 1967
- Species Doris picta R. A. Philippi, 1836 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris picturata Ehrenberg, 1831 accepted as Hypselodoris picturata (Ehrenberg, 1831)
- Species Doris pilosa Abildgaard, 1789 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris pinnatifida Montagu, 1804 accepted as Doto pinnatifida (Montagu, 1804)
- Species Doris piraini Vérany, 1846 accepted as Felimida purpurea (Risso, 1831)
- Species Doris planata Alder & Hancock, 1846 accepted as Geitodoris planata (Alder & Hancock, 1846)
- Species Doris planulata Couthouy, 1852
- Species Doris planulata W. Stimpson, 1853 accepted as Cadlina laevis (Linnaeus, 1767)
- Species Doris plumulata Couthouy, 1852
- Species Doris poddubetskaiae (Innabi, Stout & Á. Valdés, 2023)
- Species Doris porri Vérany, 1846 accepted as Paradoris indecora (Bergh, 1881)
- Species Doris preciosa Kelaart, 1858 accepted as Goniobranchus preciosus (Kelaart, 1858)
- Species Doris prismatica Pease, 1860 accepted as Hypselodoris peasei (Bergh, 1880)
- Species Doris propinquata Pease, 1860 accepted as Goniobranchus vibratus (Pease, 1860)
- Species Doris proxima Alder & Hancock, 1854 accepted as Adalaria proxima (Alder & Hancock, 1854)
- Species Doris pseudida Bergh, 1907 accepted as Discodoris pseudida (Bergh, 1907)
- Species Doris pseudoargus Rapp, 1827 accepted as Archidoris pseudoargus (Rapp, 1827)
- Species Doris pseudoverrucosa (Ihering, 1886)
- Species Doris pulchella Rüppell & Leuckart, 1830 accepted as Hypselodoris pulchella (Rüppell & Leuckart, 1830)
- Species Doris pulchella Aradas, 1847 accepted as Doris bicolor (Bergh, 1884)
- Species Doris pulcherrima Cantraine, 1835 accepted as Felimare villafranca (Risso, 1818)
- Species Doris pulchra Pease, 1861
- Species Doris punctata A. d'Orbigny, 1839 accepted as “Montereina” punctifera (Abraham, 1877)
- Species Doris punctata Rüppell & Leuckart, 1830
- Species Doris punctata Quoy & Gaimard, 1832
- Species Doris punctatissima Mörch, 1859
- Species Doris punctifera Abraham, 1877 accepted as “Montereina” punctifera (Abraham, 1877)
- Species Doris punctulifera Bergh, 1874 accepted as Chromodoris aspersa (A. Gould, 1852)
- Species Doris punctuolata A. d'Orbigny, 1836 accepted as Diaulula punctuolata (A. d'Orbigny, 1836)
- Species Doris purpurea Risso, 1831 accepted as Felimida purpurea (Risso, 1831)
- Species Doris pusilla Alder & Hancock, 1845 accepted as Atalodoris pusilla (Alder & Hancock, 1845)
- Species Doris pustulata Abraham, 1877 accepted as Carminodoris pustulata (Abraham, 1877)
- Species Doris pustulosa Cuvier, 1804 accepted as Ceratosoma pustulosum (Cuvier, 1804)
- Species Doris quadrangulata Jeffreys, 1869 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris quadricolor Rüppell & Leuckart, 1830 accepted as Chromodoris quadricolor (Rüppell & Leuckart, 1830)
- Species Doris quadricornis Montagu, 1813 accepted as Okenia aspersa (Alder & Hancock, 1845)
- Species Doris quadrilineata O. F. Müller, 1776 accepted as Polycera quadrilineata (O. F. Müller, 1776)
- Species Doris radiata Gmelin, 1791 accepted as Glaucus atlanticus Forster, 1777
- Species Doris ramosa Cantraine, 1835 accepted as Kaloplocamus ramosus (Cantraine, 1835)
- Species Doris rappii Cantraine, 1841 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris raripilosa Abraham, 1877
- Species Doris repanda Alder & Hancock, 1842 accepted as Cadlina laevis (Linnaeus, 1767)
- Species Doris reticulata Quoy & Gaimard, 1832 accepted as Goniobranchus reticulatus (Quoy & Gaimard, 1832)
- Species Doris reticulata R. A. Philippi, 1836 accepted as Doriopsilla areolata Bergh, 1880
- Species Doris reticulata Pease, 1860 accepted as Chromodoris reticulata (Pease, 1860)
- Species Doris rocinela Leach, 1852 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris rossiteri Crosse, 1875
- Species Doris rubicunda Cheeseman, 1881 accepted as Rostanga muscula (Abraham, 1877)
- Species Doris rubra Kelaart, 1858 accepted as Dendrodoris fumata (Rüppell & Leuckart, 1830)
- Species Doris rubra Risso, 1818 accepted as Rostanga rubra (Risso, 1818)
- Species Doris rubrilineata Pease, 1871 accepted as Dendrodoris nigra (W. Stimpson, 1855)
- Species Doris rusticata Alder & Hancock, 1864
- Species Doris sandiegensis J. G. Cooper, 1863 accepted as Diaulula sandiegensis (J. G. Cooper, 1863)
- Species Doris sandwichensis (J. E. Gray, 1850) accepted as Hexabranchus sandwichensis J. E. Gray, 1850
- Species Doris sandwichiensis Eydoux & Souleyet, 1852 accepted as Hexabranchus sandwichensis J. E. Gray, 1850
- Species Doris sanguinea Rüppell & Leuckart, 1830 accepted as Hexabranchus sanguineus (Rüppell & Leuckart, 1830)
- Species Doris sanguinea J. G. Cooper, 1863 accepted as Aldisa sanguinea (J. G. Cooper, 1863)
- Species Doris scabra Cuvier, 1804 accepted as Platydoris scabra (Cuvier, 1804)
- Species Doris scabriuscula Pease, 1860 accepted as Atagema scabriuscula (Pease, 1860)
- Species Doris scacchi Delle Chiaje, 1830 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris schembrii Vérany, 1846 accepted as Doris pseudoargus Rapp, 1827
- Species Doris schmeltziana Bergh, 1875 accepted as Discodoris schmeltziana (Bergh, 1875)
- Species Doris schultzii Delle Chiaje, 1841 accepted as Felimare villafranca (Risso, 1818)
- Species Doris scripta (Bergh, 1907)
- Species Doris setigera Rapp, 1827 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris setosa Pease, 1860
- Species Doris sibirica Aurivillius, 1887 accepted as Calycidoris guentheri Abraham, 1876
- Species Doris similis Alder & Hancock, 1842 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris sinuata van Hasselt, 1824 accepted as Miamira sinuata (van Hasselt, 1824)
- Species Doris sismondae Vérany, 1846 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris smaragdina A. Gould, 1852
- Species Doris sordida Pease, 1871 accepted as Dendrodoris nigra (W. Stimpson, 1855)
- Species Doris sordida Quoy & Gaimard, 1832 accepted as Sebadoris fragilis (Alder & Hancock, 1864)
- Species Doris sordida Rüppell & Leuckart, 1830 accepted as Sebadoris fragilis (Alder & Hancock, 1864)
- Species Doris sordidata Abraham, 1877 accepted as Sebadoris fragilis (Alder & Hancock, 1864)
- Species Doris sparsa Alder & Hancock, 1846 accepted as Atalodoris sparsa (Alder & Hancock, 1846)
- Species Doris speciosa Abraham, 1877 accepted as Platydoris ellioti (Alder & Hancock, 1864)
- Species Doris spiraculata A. Gould, 1852
- Species Doris spongiosa Kelaart, 1858 accepted as Atagema spongiosa (Kelaart, 1858)
- Species Doris sponsa Ehrenberg, 1831 accepted as Chromodoris sponsa (Ehrenberg, 1831)
- Species Doris staminea (Basedow & Hedley, 1905)
- Species Doris stellata Gmelin, 1791 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris sticta (Iredale & O'Donoghue, 1923)
- Species Doris stragulata Abraham, 1877 accepted as Sebadoris fragilis (Alder & Hancock, 1864)
- Species Doris striata Kelaart, 1858 accepted as Platydoris striata (Kelaart, 1858)
- Species Doris sublaevis W. Thompson, 1840 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris sublutea Abraham, 1877 accepted as Taringa sublutea (Abraham, 1877)
- Species Doris subquadrata Alder & Hancock, 1845 accepted as Acanthodoris pilosa (Abildgaard, 1789)
- Species Doris subtumida Abraham, 1877 accepted as Platydoris argo (Linnaeus, 1767)
- Species Doris sugashimae (Baba, 1998)
- Species Doris sumptuosa A. Gould, 1852 accepted as Hexabranchus lacer (Cuvier, 1804)
- Species Doris superba A. Gould, 1852 accepted as Hexabranchus lacer (Cuvier, 1804)
- Species Doris tabulata Abraham, 1877 accepted as Platydoris tabulata (Abraham, 1877)
- Species Doris tanya Ev. Marcus, 1971
- Species Doris tenella A. Gould, 1870 accepted as Onchidoris tenella (A. Gould, 1870)
- Species Doris tenera O. G. Costa, 1840 accepted as Felimare villafranca (Risso, 1818)
- Species Doris tennentana Kelaart, 1859 accepted as Goniobranchus tennentanus (Kelaart, 1859)
- Species Doris tessellata Bergh, 1879
- Species Doris testudinaria Risso, 1826 accepted as Geitodoris planata (Alder & Hancock, 1846)
- Species Doris tinctoria Rüppell & Leuckart, 1830 accepted as Goniobranchus tinctorius (Rüppell & Leuckart, 1830)
- Species Doris tomentosa Cuvier, 1804 accepted as Jorunna tomentosa (Cuvier, 1804)
- Species Doris tricolor (Baba, 1938)
- Species Doris tricolor Cantraine, 1835 accepted as Felimare tricolor (Cantraine, 1835)
- Species Doris trifida J. E. Gray, 1850 accepted as Ceratosoma trilobatum (J. E. Gray, 1850)
- Species Doris trilobata J. E. Gray, 1850 accepted as Ceratosoma trilobatum (J. E. Gray, 1850)
- Species Doris tristis Alder & Hancock, 1864 accepted as Atagema tristis (Alder & Hancock, 1864)
- Species Doris tuberculata Cuvier, 1804 accepted as Doris pseudoargus Rapp, 1827
- Species Doris tuberculosa Quoy & Gaimard, 1832 accepted as Dendrodoris tuberculosa (Quoy & Gaimard, 1832)
- Species Doris ulidiana W. Thompson, 1845 accepted as Onchidoris muricata (O. F. Müller, 1776)
- Species Doris umbrella Rochebrune, 1895
- Species Doris valenciennesi Cantraine, 1841 accepted as Felimare picta (R. A. Philippi, 1836)
- Species Doris varia Abraham, 1877 accepted as Aphelodoris varia (Abraham, 1877)
- Species Doris variabilis Angas, 1864 accepted as Aphelodoris varia (Abraham, 1877)
- Species Doris variolata A. d'Orbigny, 1836 accepted as Diaulula variolata (A. d'Orbigny, 1836)
- Species Doris venosa Quoy & Gaimard, 1832
- Species Doris vermicelli A. Gould, 1852 accepted as Diaulula variolata (A. d'Orbigny, 1836)
- Species Doris vermigera W. Turton, 1807 accepted as Aeolidia papillosa (Linnaeus, 1761)
- Species Doris verrucosa Linnaeus, 1758
- Species Doris vestita Abraham, 1877 accepted as Diaulula punctuolata (A. d'Orbigny, 1836)
- Species Doris vibrata Pease, 1860 accepted as Goniobranchus vibratus (Pease, 1860)
- Species Doris villae Vérany, 1846 accepted as Felimare villafranca (Risso, 1818)
- Species Doris villafranca Risso, 1818 accepted as Felimare villafranca (Risso, 1818)
- Species Doris villosa Alder & Hancock, 1864 accepted as Thordisa villosa (Alder & Hancock, 1864)
- Species Doris villosa Pease, 1871
- Species Doris violacea (Bergh, 1904)
- Species Doris violacea Quoy & Gaimard, 1832
- Species Doris virescens Risso, 1826 accepted as Dendrodoris limbata (Cuvier, 1804)
- Species Doris viridis (Pease, 1861)
- Species Doris wellingtonensis Abraham, 1877
- Species Doris xantholeuca Ehrenberg, 1831 accepted as Glossodoris pallida (Rüppell & Leuckart, 1830)
- Species Doris zetlandica Alder & Hancock, 1854 accepted as Aldisa zetlandica (Alder & Hancock, 1854)
- Genus Etidoris Ihering, 1886 accepted as Thordisa Bergh, 1877
- Genus Goslineria Á. Valdés, 2001 (1)
- Genus Guyonia Risbec, 1928 accepted as Doris Linnaeus, 1758
- Genus Homoiodoris Bergh, 1882 (1)
- Genus Neodoris Baba, 1938 accepted as Doris Linnaeus, 1758
- Genus Pharodoris Á. Valdés, 2001 (2)
- Genus Praegliscita Burn, 1957 accepted as Doris Linnaeus, 1758
- Genus Siraius Er. Marcus, 1955 accepted as Doris Linnaeus, 1758
- Genus Staurodoris Bergh, 1878 accepted as Doris Linnaeus, 1758 (1)
- Family Geitodorididae Odhner, 1968 accepted as Discodorididae Bergh, 1891
- Family Gruveliidae Thiele, 1931 accepted as Discodorididae Bergh, 1891
- Family Halgerdidae Odhner, 1926 accepted as Discodorididae Bergh, 1891
- Family Kentrodorididae Bergh, 1891 accepted as Discodorididae Bergh, 1891
- Family Platydorididae Bergh, 1891 accepted as Discodorididae Bergh, 1891
- Family Rostangidae Pruvot-Fol, 1951 accepted as Discodorididae Bergh, 1891
- Subfamily Conualeviinae Collier & Farmer, 1964 accepted as Dorididae Rafinesque, 1815
- Subfamily Neodoridinae Odhner, 1968 accepted as Dorididae Rafinesque, 1815
- Superfamily Doridoidei incertae sedis
- Superfamily Onchidoridacea accepted as Onchidoridoidea Gray, 1827
- Superfamily Onchidoridoidea Gray, 1827 (278)
- Superfamily Phyllidioidea Rafinesque, 1814 (156)
- Superfamily Polyceroidea Alder & Hancock, 1845 (200)
- Superfamily Porodoridacea Odhner, 1968 accepted as Phyllidioidea Rafinesque, 1814
- Superfamily Porostomata Bergh, 1876 accepted as Phyllidioidea Rafinesque, 1814
- Infraorder Gnathodoridacea accepted as Bathydoridoidei
- Suborder Euctenidiacea accepted as Doridina
- Suborder Holohepatica accepted as Doridina
- Suborder Nudibranchia incertae sedis (1)
- Order Pleurobranchida (97)
- Genus Abranchus [sic] accepted as Abrancha van Hasselt, 1824
- Genus Spongiodoris Pruvot-Fol, 1933
- Superorder Ringiculimorpha (169)
- Order Pleurobranchomorpha accepted as Pleurobranchida
- Genus Abrancha van Hasselt, 1824
- Subterclass Tectipleura (34 103)
- Superorder Euthyneura incertae sedis
- Infraclass Heterobranchia incertae sedis (478)
- Infraclass Mesoneura (108)
- Infraclass Opisthobranchia
- Infraclass Pulmonata
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Neritimorpha (1 914)
- Subclass Orthogastropoda represented as Gastropoda
- Subclass Patellogastropoda (511)
- Subclass Prosobranchia
- Subclass Psilogastropoda represented as Gastropoda
- Subclass Vetigastropoda (6 782)
- Class Lamellibranchiata accepted as Bivalvia
- Class Loricata accepted as Polyplacophora
- Class Mollusca incertae sedis † (372)
- Class Monoplacophora (229)
- Class Pelecypoda accepted as Bivalvia
- Class Polyplacophora (1 377)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (752)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata