Acanthella multiformis Vosmaer, 1885 (additional source)
Anchinoe roemeri Hentschel, 1929 accepted as Phorbas roemeri (Hentschel, 1929) (original description)
Aplysilla arenosa Hentschel, 1929 accepted as Aplysilla arctica de Laubenfels, 1948 (original description)
Aplysilla glacialis (Merejkowsky, 1878) (additional source)
Artemisina apollinis (Ridley & Dendy, 1886) (additional source)
Artemisina arcigera (Schmidt, 1870) (additional source)
Asbestopluma bihamatifera (Carter, 1876) represented as Asbestopluma (Asbestopluma) bihamatifera (Carter, 1876) (additional source)
Asbestopluma pennatula (Schmidt, 1875) represented as Asbestopluma (Asbestopluma) pennatula (Schmidt, 1875) (additional source)
Axinella arctica (Vosmaer, 1885) (additional source)
Axinella arctica var. setosa Hentschel, 1929 accepted as Axinella setosa Hentschel, 1929 (original description)
Axinella arctica var. trichophora Hentschel, 1929 accepted as Axinella trichophora Hentschel, 1929 (original description)
Biemna gemmulifera (Breitfuss, 1912) accepted as Biemna variantia (Bowerbank, 1858) (new combination reference)
Biemna peachii (Bowerbank, 1866) accepted as Biemna variantia (Bowerbank, 1858) (additional source)
Bubaris vermiculata (Bowerbank, 1866) (additional source)
Bubaris vermiculata var. erecta (Carter, 1876) accepted as Acanthella erecta (Carter, 1876) (additional source)
Chalina arbuscula Verrill, 1873 accepted as Haliclona (Haliclona) oculata (Linnaeus, 1759) (additional source)
Chalina groenlandica Fristedt, 1887 accepted as Haliclona groenlandica (Fristedt, 1887) (additional source)
Chalina spatula Lundbeck, 1902 accepted as Cladocroce spatula (Lundbeck, 1902) (additional source)
Chalina vega Fristedt, 1887 accepted as Haliclona vega (Fristedt, 1887) (additional source)
Coelosphaera appendiculata (Carter, 1874) accepted as Coelosphaera (Coelosphaera) tubifex Thomson, 1873 (additional source)
Coelosphaera physa (Schmidt, 1875) represented as Coelosphaera (Coelosphaera) physa (Schmidt, 1875) (additional source)
Cornulum textile Carter, 1876 (additional source)
Crellomima Rezvoi, 1925 (basis of record)
Crellomima derma Hentschel, 1929 (original description)
Crellomima incrustans Hentschel, 1929 (original description)
Dendoricella rhopalum Lundbeck, 1905 (additional source)
Dragmastra normani var. rhaphidiophora (Hentschel, 1929) accepted as Stelletta rhaphidiophora Hentschel, 1929 (original description)
Ectyodoryx clavigera (Levinsen, 1887) accepted as Phorbas claviger (Levinsen, 1887) (additional source)
Ectyodoryx foliata (Fristedt, 1887) accepted as Lissodendoryx (Ectyodoryx) foliata (Fristedt, 1887) (new combination reference)
Ectyodoryx olgae Hentschel, 1929 accepted as Lissodendoryx (Ectyodoryx) olgae (Hentschel, 1929) (original description)
Ectyodoryx oligacantha Hentschel, 1929 accepted as Lissodendoryx (Ectyodoryx) oligacantha (Hentschel, 1929) (original description)
Esperiopsis forcipula Lundbeck, 1905 accepted as Forcepia (Forcepia) lundbecki Van Soest & Hooper, 2020 (additional source)
Esperiopsis typichela Lundbeck, 1905 accepted as Amphilectus typichela (Lundbeck, 1905) (additional source)
Eumastia sitiens Schmidt, 1870 accepted as Halichondria (Eumastia) sitiens (Schmidt, 1870) (additional source)
Eurypon spitzbergensis accepted as Eurypon spitzbergense (Fristedt, 1887) (new combination reference)
Forcepia fabricans (Schmidt, 1874) represented as Forcepia (Forcepia) fabricans (Schmidt, 1874) (additional source)
Halichondria arenosa Hentschel, 1929 represented as Halichondria (Halichondria) arenosa Hentschel, 1929 (original description)
Halichondria axinelloides Swartschewsky, 1906 represented as Halichondria (Halichondria) axinelloides Swartschewsky, 1906 (additional source)
Halichondria colossea Lundbeck, 1902 represented as Halichondria (Halichondria) colossea Lundbeck, 1902 (additional source)
Halichondria difficilis Lundbeck, 1902 represented as Spongosorites difficilis (Lundbeck, 1902) (additional source)
Halichondria fibrosa (Fristedt, 1887) represented as Topsentia fibrosa (Fristedt, 1887) (additional source)
Halichondria genitrix (Schmidt, 1870) represented as Halichondria (Halichondria) genitrix (Schmidt, 1870) (additional source)
Halichondria heterorrhaphis Breitfuss, 1912 represented as Halichondria (Halichondria) heterorrhaphis Breitfuss, 1912 (additional source)
Halichondria labiata Hentschel, 1929 represented as Halichondria (Halichondria) labiata Hentschel, 1929 (original description)
Halichondria oblonga (Hansen, 1885) represented as Halichondria (Halichondria) oblonga (Hansen, 1885) (additional source)
Halichondria osculum Lundbeck, 1902 represented as Halichondria (Halichondria) osculum Lundbeck, 1902 (additional source)
Halichondria panicea (Pallas, 1766) represented as Halichondria (Halichondria) panicea (Pallas, 1766) (additional source)
Halichondria tenuiderma Lundbeck, 1902 accepted as Haliclona tenuiderma (Lundbeck, 1902) (additional source)
Halichondria tenuispiculata Brøndsted, 1916 represented as Halichondria (Halichondria) tenuispiculata Brøndsted, 1916 (additional source)
Halichondria velamentosa (Hansen, 1885) accepted as Halichondria (Halichondria) panicea (Pallas, 1766) (source of synonymy)
Halicnemia verticillata (Bowerbank, 1866) (additional source)
Halisarca dujardinii Johnston, 1842 (additional source)
Hamacantha implicans Lundbeck, 1902 accepted as Hamacantha (Vomerula) papillata Vosmaer, 1885 (additional source)
Hexadella dedritifera Topsent, 1913 (additional source)
Hymedesmia baculifera (Topsent, 1901) represented as Hymedesmia (Hymedesmia) baculifera (Topsent, 1901) (additional source)
Hymedesmia curvichela Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) curvichela Lundbeck, 1910 (additional source)
Hymedesmia digitata Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) digitata Lundbeck, 1910 (additional source)
Hymedesmia dujardinii (Bowerbank, 1866) accepted as Hymedesmia (Stylopus) coriacea (Fristedt, 1885) (additional source)
Hymedesmia koehleri (Topsent, 1896) represented as Hymedesmia (Hymedesmia) koehleri (Topsent, 1896) (additional source)
Hymedesmia laevistylus Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) laevistylus Lundbeck, 1910 (additional source)
Hymedesmia mollis Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) mollis Lundbeck, 1910 (additional source)
Hymedesmia nummulus Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) nummulus Lundbeck, 1910 (additional source)
Hymedesmia primitiva Lundbeck, 1910 represented as Hymedesmia (Stylopus) primitiva Lundbeck, 1910 (additional source)
Hymedesmia procumbens Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) procumbens Lundbeck, 1910 (additional source)
Hymedesmia similis Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) similis Lundbeck, 1910 (additional source)
Hymedesmia tenuisigma Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) tenuisigma Lundbeck, 1910 (additional source)
Hymedesmia truncata Lundbeck, 1910 represented as Hymedesmia (Hymedesmia) truncata Lundbeck, 1910 (additional source)
Hymenancora duplicata Lundbeck, 1910 (additional source)
Hymenancora interjecta Lundbeck, 1910 (additional source)
Hymenancora tenuisclera Lundbeck, 1910 (additional source)
Hymeniacidon caruncula Bowerbank, 1858 accepted as Hymeniacidon perlevis (Montagu, 1814) (additional source)
Hymeniacidon fasciculata (Fristedt, 1887) (additional source)
Inflatella pellicula Schmidt, 1875 (additional source)
Iophon chelifer Ridley & Dendy, 1886 accepted as Iophon cheliferum Ridley & Dendy, 1886 (additional source)
Iophon dubius (Hansen, 1885) accepted as Iophon dubium (Hansen, 1885) (additional source)
Iophon frigidus Lundbeck, 1905 accepted as Iophon frigidum Lundbeck, 1905 (additional source)
Iophon frigidus var. gracilis Hentschel, 1929 accepted as Iophon gracile Hentschel, 1929 (original description)
Iophon gracile Hentschel, 1929 (original description)
Iotrochota affinis Lundbeck, 1905 accepted as Iotroata affinis (Lundbeck, 1905) (additional source)
Iotrochota oxeata Lundbeck, 1905 accepted as Iotroata oxeata (Lundbeck, 1905) (additional source)
Iotrochota polydentata Lundbeck, 1905 accepted as Iotroata polydentata (Lundbeck, 1905) (additional source)
Iotrochota rotulancora Lundbeck, 1905 accepted as Iotroata rotulancora (Lundbeck, 1905) (additional source)
Iotrochota spinosa Lundbeck, 1905 accepted as Iotroata spinosa (Lundbeck, 1905) (additional source)
Iotrochota varidens Lundbeck, 1905 accepted as Iotroata varidens (Lundbeck, 1905) (additional source)
Isodictya palmata (Ellis & Solander, 1786) (additional source)
Latrunculia tricincta Hentschel, 1929 accepted as Bomba tricincta (Hentschel, 1929) (original description)
Latrunculia triloba (Schmidt, 1875) represented as Latrunculia (Biannulata) triloba (Schmidt, 1875) (additional source)
Lissodendoryx complicata (Hansen, 1885) represented as Lissodendoryx (Lissodendoryx) complicata (Hansen, 1885) (additional source)
Lissodendoryx diversichela Lundbeck, 1905 represented as Lissodendoryx (Ectyodoryx) diversichela Lundbeck, 1905 (additional source)
Lissodendoryx fragilis (Fristedt, 1885) represented as Lissodendoryx (Lissodendoryx) fragilis (Fristedt, 1885) (additional source)
Lissodendoryx lobosa Lundbeck, 1905 represented as Lissodendoryx (Lissodendoryx) lobosa Lundbeck, 1905 (additional source)
Lissodendoryx lundbecki Topsent, 1913 represented as Lissodendoryx (Lissodendoryx) lundbecki Topsent, 1913 (additional source)
Lissodendoryx sophia (Fristedt, 1887) represented as Lissodendoryx (Lissodendoryx) sophia (Fristedt, 1887) (additional source)
Melonanchora elliptica Carter, 1874 (additional source)
Melonanchora emphysema (Schmidt, 1875) (additional source)
Microciona heterotoxa Hentschel, 1929 accepted as Clathria (Microciona) heterotoxa (Hentschel, 1929) (original description)
Mycale (Oxymycale) Hentschel, 1929 (original description)
Mycale lingua (Bowerbank, 1866) represented as Mycale (Mycale) lingua (Bowerbank, 1866) (additional source)
Mycale ovulum (Schmidt, 1870) accepted as Amphilectus ovulum (Schmidt, 1870) (additional source)
Mycale placoides (Carter, 1876) accepted as Mycale (Mycale) lingua (Bowerbank, 1866) (additional source)