Aaptos Gray, 1867 (additional source)
Aaptos papillata (Keller, 1880) (additional source)
Acanthancora Topsent, 1927 (additional source)
Acanthancora clavatancora Topsent, 1927 accepted as Pseudohalichondria clavatancora (Topsent, 1927) (source of synonymy)
Acanthella acuta Schmidt, 1862 (additional source)
Acanthella annulata Sarà, 1958 (additional source)
Acanthella mastophora (Schmidt, 1870) (additional source)
Acanthella multiformis Vosmaer, 1885 (additional source)
Acanthella obtusa Schmidt, 1862 accepted as Dictyonella obtusa (Schmidt, 1862) (additional source)
Acantheurypon Topsent, 1927 (additional source)
Acantheurypon pilosella (Topsent, 1904) (additional source)
Acantheurypon scabiosum Topsent, 1927 accepted as Eurypon scabiosum (Topsent, 1927) (additional source)
Acarnus levii (Vacelet, 1960) (additional source)
Acarnus tortilis Topsent, 1892 (additional source)
Acheliderma lemniscata Topsent, 1892 accepted as Acheliderma lemniscatum Topsent, 1892 (additional source)
Aciculites Schmidt, 1879 (additional source)
Aciculites incrustans Topsent, 1889 accepted as Desmanthus incrustans (Topsent, 1889) (additional source)
Adocia Gray, 1867 accepted as Haliclona (Haliclona) Grant, 1836 (additional source)
Adocia cribrata Pulitzer-Finali, 1983 accepted as Haliclona cribrata (Pulitzer-Finali, 1983) (additional source)
Adocia laevis Griessinger, 1971 accepted as Haliclona (Haliclona) jeanmicheli Van Soest & Hooper, 2020 (additional source)
Adocia reptans Griessinger, 1971 accepted as Haliclona (Haliclona) massiliensis Van Soest & Hooper, 2020 (additional source)
Adocia venata Sarà, 1960 accepted as Haliclona (Haliclona) venata (Sarà, 1960) (additional source)
Adreus Gray, 1867 (additional source)
Adreus fascicularis (Bowerbank, 1866) (additional source)
Agelas Duchassaing & Michelotti, 1864 (additional source)
Agelas oroides (Schmidt, 1864) (additional source)
Agelasidae Verrill, 1907 (additional source)
Aka de Laubenfels, 1936 accepted as Siphonodictyon Bergquist, 1965 (additional source)
Aka infesta (Johnson, 1889) accepted as Siphonodictyon infestum (Johnson, 1899) (additional source)
Alcyonium aurantium Pallas, 1766 accepted as Tethya aurantium (Pallas, 1766) (additional source)
Alcyonium boletiforme Lamarck, 1815 accepted as Polymastia boletiformis (Lamarck, 1815) (additional source)
Alcyonium cranium Müller, 1776 accepted as Craniella cranium (Müller, 1776) (additional source)
Alcyonium domuncula Olivi, 1792 accepted as Suberites domuncula (Olivi, 1792) (additional source)
Alcyonium epiphytum Lamarck, 1815 accepted as Protosuberites epiphytum (Lamarck, 1815) (additional source)
Alebion Gray, 1867 accepted as Iophon Gray, 1867 (additional source)
Alebion piceum Vosmaer, 1882 accepted as Iophon piceum (Vosmaer, 1882) (additional source)
Alectona Carter, 1879 (additional source)
Alectona millari Carter, 1879 (additional source)
Amorphina Schmidt, 1870 accepted as Halichondria (Halichondria) Fleming, 1828 (additional source)
Amorphina dubia Czerniavsky, 1880 accepted as Halichondria (Halichondria) dubia (Czerniavsky, 1880) (additional source)
Amorphina fasciculata Fristedt, 1887 accepted as Hymeniacidon fasciculata (Fristedt, 1887) (basis of record)
Amorphina genitrix Schmidt, 1870 accepted as Halichondria (Halichondria) genitrix (Schmidt, 1870) (basis of record)
Amorphina grisea Fristedt, 1887 accepted as Halichondria (Halichondria) panicea (Pallas, 1766) (basis of record)
Amorphina nodosa Fristedt, 1887 accepted as Halichondria (Eumastia) sitiens (Schmidt, 1870) (additional source)
Amorphina paciscens Schmidt, 1875 accepted as Halichondria (Halichondria) panicea (Pallas, 1766) (basis of record)
Amorphina renieroides Fristedt, 1887 accepted as Halichondria (Halichondria) renieroides (Fristedt, 1887) (basis of record)
Amorphina velamentosa (Hansen, 1885) accepted as Halichondria (Halichondria) panicea (Pallas, 1766) (basis of record)
Amorphinopsis Carter, 1887 (additional source)
Amorphinopsis filigrana (Schmidt, 1862) (additional source)
Amorphinopsis pallescens (Topsent, 1892) (additional source)
Amphidiscophora (additional source)
Amphilectus Vosmaer, 1880 (additional source)
Amphilectus gerzensteini Swartschevsky, 1906 accepted as Crella gerzensteini (Swartschevsky, 1906) (additional source)
Amphilectus osculosus Topsent, 1892 accepted as Phorbas osculosus (Topsent, 1892) (basis of record)
Amphilectus strongylatus Alander, 1942 accepted as Esperiopsis strongylatus (Alander, 1942) (basis of record)
Amphiute Hanitsch, 1894 (additional source)
Amphiute paulini Hanitsch, 1894 (additional source)
Amphoriscidae Dendy, 1893 (additional source)
Amphoriscus Haeckel, 1870 (additional source)
Amphoriscus buccichi accepted as Amphoriscus buccichii Ebner, 1887 (source of synonymy)
Amphoriscus gregorii (Lendenfeld, 1891) (additional source)
Amphoriscus murmanensis Breitfuss, 1898 accepted as Sycettusa murmanensis (Breitfuss, 1898) (additional source)
Amphoriscus oviparus (Haeckel, 1872) (additional source)
Anchinoe Gray, 1867 accepted as Phorbas Duchassaing & Michelotti, 1864 (additional source)
Anchinoe roemeri Hentschel, 1929 accepted as Phorbas roemeri (Hentschel, 1929) (additional source)
Ancorina Schmidt, 1862 (additional source)
Ancorina aaptos Schmidt, 1864 accepted as Aaptos aaptos (Schmidt, 1864) (basis of record)
Ancorina cerebrum Schmidt, 1862 (additional source)
Ancorina radix Marenzeller, 1889 (additional source)
Ancorina simplicissima Schmidt, 1868 accepted as Stelletta simplicissima (Schmidt, 1868) (basis of record)
Ancorina wageneri (Schmidt, 1862) accepted as Ancorina cerebrum Schmidt, 1862 (basis of record)
Anisocrella Topsent, 1927 (additional source)
Anisocrella hymedesmina Topsent, 1927 (additional source)
Anisotylacanthea Vacelet, 1969 accepted as Damiria Keller, 1891 (additional source)
Anisotylacanthea curvata Vacelet, 1969 accepted as Damiria curvata (Vacelet, 1969) (additional source)
Anisoxya Topsent, 1898 accepted as Topsentia Berg, 1899 (basis of record)
Anisoxya glabra Topsent, 1898 accepted as Topsentia glabra (Topsent, 1898) (basis of record)
Anoxycalyx Kirkpatrick, 1907 (additional source)
Anoxycalyx (Anoxycalyx) laceratus Koltun, 1967 (additional source)
Antho Gray, 1867 (additional source)
Antho arctica (Koltun, 1959) represented as Antho (Acarnia) arctica (Koltun, 1959) (additional source)
Antho circonflexa (Lévi, 1960) represented as Antho (Acarnia) circonflexa (Lévi, 1960) (basis of record)
Antho coriacea (Bowerbank, 1874) represented as Antho (Acarnia) coriacea (Bowerbank, 1874) (additional source)
Antho coriacea var. elegans (Ridley & Dendy, 1887) accepted as Antho (Acarnia) elegans (Ridley & Dendy, 1887) (additional source)
Antho dichotoma (Linnaeus, 1767) represented as Antho (Antho) dichotoma (Linnaeus, 1767) (additional source)
Antho erecta (Ferrer Hernández, 1923) represented as Antho (Plocamia) erecta (Ferrer Hernández, 1923) (additional source)
Antho fragilis (Koltun, 1959) accepted as Wigginsia wigginsi de Laubenfels, 1953 (basis of record)
Antho involvens (Schmidt, 1864) represented as Antho (Antho) involvens (Schmidt, 1864) (additional source)
Antho involvens var. inconstans (Topsent, 1925) accepted as Antho (Antho) inconstans (Topsent, 1925) (additional source)
Antho lundbecki (Breitfuss, 1912) accepted as Plocamionida ambigua (Bowerbank, 1866) (additional source)
Antho oxeifera (Ferrer-Hernandez, 1921) represented as Antho (Antho) oxeifera (Ferrer-Hernandez, 1921) (additional source)
Antho paradoxa (Babic, 1922) represented as Antho (Antho) paradoxa (Babiç, 1922) (additional source)
Antho paucispina Sarà & Siribelli, 1962 represented as Antho (Antho) paucispina Sarà & Siribelli, 1962 (additional source)
Aphrocallistes Gray, 1858 (additional source)
Aphrocallistes azoricus Topsent, 1901 accepted as Pityrete azoricum (Topsent, 1901) (additional source)
Aphrocallistes beatrix Gray, 1858 (additional source)
Aphrocallistidae Gray, 1867 (additional source)
Aphroceras Gray, 1858 (additional source)
Aphroceras corticata (Lendenfeld, 1891) (additional source)
Aphroceras ensata (Bowerbank, 1858) (additional source)

European waters (ERMS scope) for Aaptos aaptos (Schmidt, 1864) 
European waters (ERMS scope) for Aaptos papillata (Keller, 1880) 
European waters (ERMS scope) for Acanthella acuta Schmidt, 1862 
European waters (ERMS scope) for Acanthella annulata Sarà, 1958 
European waters (ERMS scope) for Acanthella mastophora (Schmidt, 1870) 
European waters (ERMS scope) for Acanthella multiformis Vosmaer, 1885 
European waters (ERMS scope) for Acantheurypon pilosella (Topsent, 1904) 
European waters (ERMS scope) for Acantheurypon scabiosum Topsent, 1927 
European waters (ERMS scope) for Acarnus levii (Vacelet, 1960) 
European waters (ERMS scope) for Acarnus tortilis Topsent, 1892 
European waters (ERMS scope) for Acheliderma lemniscata Topsent, 1892 
European waters (ERMS scope) for Adreus fascicularis (Bowerbank, 1866) 
European waters (ERMS scope) for Agelas oroides (Schmidt, 1864) 
European waters (ERMS scope) for Aka infesta (Johnson, 1889) 
European waters (ERMS scope) for Alectona millari Carter, 1879 
European waters (ERMS scope) for Amorphina protochalina Czerniavsky, 1880  (inaccurate)
European waters (ERMS scope) for Amorphinopsis filigrana (Schmidt, 1862) 
European waters (ERMS scope) for Amorphinopsis pallescens (Topsent, 1892) 
European waters (ERMS scope) for Amphiute paulini Hanitsch, 1894 
European waters (ERMS scope) for Amphoriscus buccichi 
European waters (ERMS scope) for Amphoriscus cylindricus (Haeckel, 1870) 
European waters (ERMS scope) for Amphoriscus gregorii (Lendenfeld, 1891) 
European waters (ERMS scope) for Amphoriscus oviparus (Haeckel, 1872) 
European waters (ERMS scope) for Ancorina cerebrum Schmidt, 1862 
European waters (ERMS scope) for Ancorina radix Marenzeller, 1889 
European waters (ERMS scope) for Ancorina verruca Schmidt, 1862 
European waters (ERMS scope) for Ancorina wageneri (Schmidt, 1862) 
European waters (ERMS scope) for Anisocrella hymedesmina Topsent, 1927 
European waters (ERMS scope) for Anisotylacanthea curvata Vacelet, 1969 
European waters (ERMS scope) for Anoxycalyx (Anoxycalyx) laceratus Koltun, 1967 
European waters (ERMS scope) for Antho arctica (Koltun, 1959) 
European waters (ERMS scope) for Antho brattegardi van Soest & Stone, 1986 
European waters (ERMS scope) for Antho circonflexa (Lévi, 1960) 
European waters (ERMS scope) for Antho coriacea var. elegans (Ridley & Dendy, 1887) 
European waters (ERMS scope) for Antho dichotoma (Linnaeus, 1767) 
European waters (ERMS scope) for Antho erecta (Ferrer Hernández, 1923) 
European waters (ERMS scope) for Antho fragilis (Koltun, 1959) 
European waters (ERMS scope) for Antho involvens var. inconstans (Topsent, 1925) 
European waters (ERMS scope) for Antho lundbecki (Breitfuss, 1912) 
European waters (ERMS scope) for Antho oxeifera (Ferrer-Hernandez, 1921) 
European waters (ERMS scope) for Antho paradoxa (Babic, 1922) 
European waters (ERMS scope) for Antho paucispina Sarà & Siribelli, 1962 
European waters (ERMS scope) for Aphrocallistes beatrix Gray, 1858 
European waters (ERMS scope) for Aphrocallistes bocagei Wright, 1870 
European waters (ERMS scope) for Aphroceras corticata (Lendenfeld, 1891) 
European waters (ERMS scope) for Aphroceras ensata (Bowerbank, 1858) 
European waters (ERMS scope) for Aplysilla glacialis (Merejkowsky, 1878) 
European waters (ERMS scope) for Aplysilla rosea (Barrois, 1876) 
European waters (ERMS scope) for Aplysilla sulfurea Schulze, 1878 
European waters (ERMS scope) for Aplysina aerophoba (Nardo, 1833) 
European waters (ERMS scope) for Aplysina carnosa Schmidt, 1862 
European waters (ERMS scope) for Aplysina cavernicola (Vacelet, 1959) 
European waters (ERMS scope) for Aplysina massa (Szymanski, 1904) 
European waters (ERMS scope) for Aplysina tuberosa (Szymanski, 1904) 
European waters (ERMS scope) for Artemisina apollinis (Ridley & Dendy, 1886)  (inaccurate)
European waters (ERMS scope) for Artemisina arcigera (Schmidt, 1870) 
European waters (ERMS scope) for Artemisina erecta Topsent, 1904 
European waters (ERMS scope) for Artemisina hispanica Ferrer Hernández, 1918 
European waters (ERMS scope) for Artemisina transiens Topsent, 1890 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) cupressiformis (Carter, 1874) 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) furcata Lundbeck, 1905 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) hydra Lundbeck, 1905 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) infundibulum (Levinsen, 1887) 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) lycopodium (Levinsen, 1887) 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) minuta (Lambe, 1900) 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) quadriserialis Tendal, 1973 
European waters (ERMS scope) for Asbestopluma (Asbestopluma) ramosa Koltun, 1958  (inaccurate)
European waters (ERMS scope) for Asbestopluma bihamatifera (Carter, 1876) 
European waters (ERMS scope) for Asbestopluma pennatula (Schmidt, 1875) 
European waters (ERMS scope) for Ascaltis lamarcki (Haeckel, 1870) 
European waters (ERMS scope) for Ascandra falcata Haeckel, 1872 
European waters (ERMS scope) for Asconema setubalense Kent, 1870 
European waters (ERMS scope) for Ascyssa acufera Haeckel, 1870 
European waters (ERMS scope) for Ascyssa troglodytes Haeckel, 1870 
European waters (ERMS scope) for Astylinifer planus Topsent, 1927 
European waters (ERMS scope) for Atergia corticata Stephens, 1915 
European waters (ERMS scope) for Auletta grantioides Lévi & Vacelet, 1958 
European waters (ERMS scope) for Auletta pedunculata (Topsent, 1896) 
European waters (ERMS scope) for Auletta sessilis Topsent, 1904 
European waters (ERMS scope) for Auletta sycinularia Schmidt, 1870 
European waters (ERMS scope) for Auloplax filholi (Topsent, 1904) 
European waters (ERMS scope) for Axinella arctica (Vosmaer, 1885) 
European waters (ERMS scope) for Axinella babici Vacelet, 1961 
European waters (ERMS scope) for Axinella calyciformis (Lamarck, 1814) 
European waters (ERMS scope) for Axinella cannabina (Esper, 1794) 
European waters (ERMS scope) for Axinella cinnamomea (Nardo, 1833) 
European waters (ERMS scope) for Axinella damicornis (Esper, 1794) 
European waters (ERMS scope) for Axinella dissimilis (Bowerbank, 1866) 
European waters (ERMS scope) for Axinella egregia sensu Topsent, 1892 
European waters (ERMS scope) for Axinella estacioi Carballo & Garcia-Gomez, 1995 
European waters (ERMS scope) for Axinella flustra Topsent, 1892 
European waters (ERMS scope) for Axinella guiteli Topsent, 1896 
European waters (ERMS scope) for Axinella hirondellei (Topsent, 1890) 
European waters (ERMS scope) for Axinella hispida Koltun, 1959  (inaccurate)
European waters (ERMS scope) for Axinella infundibuliformis (Linnaeus, 1759) 
European waters (ERMS scope) for Axinella macrostyla Babiç, 1922 
European waters (ERMS scope) for Axinella mahonensis Ferrer-Hernandez, 1916 
European waters (ERMS scope) for Axinella mammillata Hanitsch, 1890 
European waters (ERMS scope) for Axinella minuta Lévi, 1957 
European waters (ERMS scope) for Axinella pocillum (Bowerbank, 1866) 

 Classification

 for Dysidea papillosa (Johnston, 1842)

Genus uncertain, possibly not a sponge. [details]

 Classification

 for Fasciospongia aspergillum (Schmidt, 1868)

Incertae sedis. [details]

 Classification

 for Haliclona (Gellius) esperi (Arnesen, 1903)

Position in genus uncertain. Assigned to Hemigellius arcofer on the authority of Burton (1932). [details]

 Classification

 for Haliclona columbae (Walker, 1812)

Position in genus uncertain, identity of species uncertain. [details]

 Classification

 for Haliclona parasitica (Montagu, 1814)

Position uncertain, but not clearly a Haliclona. Arndt (1935) lists it as an Amphilectus fucorum. [details]

 Classification

 for Halisarca guttula Schmidt, 1864

Genus uncertain. [details]

 Classification

 for Hemigellius stylifer (Lendenfeld, 1897)

Genus uncertain. [details]

 Classification

 for Ircinia collectrix (Poléjaeff, 1884)

Genus uncertain. [details]

 Classification

 for Ircinia condensa (Topsent, 1894)

Genus uncertain. [details]

 Classification

 for Ircinia digitata (Topsent, 1894)

Genus uncertain. [details]

 Classification

 for Ircinia stipitata (Topsent, 1894)

Genus uncertain. [details]

 Classification

 for Pachychalina arctica (Miklucho-Maclay, 1870)

Genus uncertain. [details]

 Classification

 for Pachychalina fracta Hentschel, 1929

Genus uncertain. [details]

 Classification

 for Pachychalina gracilis (Miklucho-Maclay, 1870)

Genus uncertain. [details]

 Classification

 for Thorectandra diversispiculifera Ferrer-Hernandez, 1918

Genus uncertain. [details]

 Distribution

 for Hymedesmia (Hymedesmia) mertoni Hentschel, 1912

H. mertoni is reported from the Azores by Boury-Esnault & Lopes, 1985, but this is unlikely to be correct. [details]

 Homonymy

 for Alebion Gray, 1867

Also in database as valid genus in Euryphoridae (Copepoda) - needs checking [details]

 identification

 for Phorbas Duchassaing & Michelotti, 1864

Phorbas spec.aff.stylata Burton,1930 [details]

 Synonymy

 for Ircinia hebes (Schmidt, 1862)

Synonymy based on Vacelet, 1959. [details]

 Synonymy

 for Ircinia panicea (Schmidt, 1862)

Synonymy uncertain. [details]

 Taxonomy

 for Clathria tricurvatifera (Carter, 1876)

Clathria? [details]

 Taxonomy

 for Desmacidon anceps Schmidt, 1874

Uncertain. Material labeled as Desmacidon anceps has been investigated by Thiele (1903) and found to consist of six ... [details]

 Taxonomy

 for Eurypon (Acantheurypon) Topsent, 1927

Also exists as valid genus in the database, with two species not included in list of species belonging to subgenus ... [details]

 Taxonomy

 for Halichondria albescens sensu Johnston, 1842

Incertae sedis. Halichondria? or perhaps Amphilectus close to A. fucorum, suggested by Johnston himself. This is a ... [details]

 Taxonomy

 for Halichondria coralloides Bowerbank, 1882

Halichondria? [details]

 Taxonomy

 for Halichondria diversispiculata Burton, 1930

Halichondria? [details]

 Taxonomy

 for Halichondria glabra Bowerbank, 1866

Halichondria? [details]

 Taxonomy

 for Halichondria lactea (Bowerbank, 1866)

Uncertain Halichondria (H.) panicea [details]

 Taxonomy

 for Halichondria membrana (Bowerbank, 1866)

Halichondria? [details]

 Taxonomy

 for Halichondria normani Burton, 1930

Halichondria? [details]

 Taxonomy

 for Holoxea Topsent, 1892

Listed in ERMS I under family Coppatiidae (Demospongiae) [details]

 Taxonomy

 for Hymeniacidon aurea (Montagu, 1814)

Hymeniacidon? [details]

 Taxonomy

 for Hymeniacidon fasciculata (Fristedt, 1887)

Hymeniacidon? [details]

 Taxonomy

 for Hymeniacidon luxurians (Lieberkühn, 1859)

Incertae sedis. Hymeniacidon? [details]

 Taxonomy

 for Hymeniacidon plumigera Bowerbank, 1874

Incertae sedis. Hymeniacidon? [details]

 Taxonomy

 for Hymeniacidon simplex (Bowerbank, 1866)

Hymeniacidon? [details]

 Taxonomy

 for Hymeniacidon virgulatus Bowerbank, 1882

Hymeniacidon perlevis ? Identity uncertain. [details]

 Taxonomy

 for Ircinia verrucosa (Lieberkühn, 1869)

Species identity uncertain, but synonymy with Ircinia strobilina was suggested by Wiedenmayer, 1977. [details]

 Taxonomy

 for Mycale foraminosa (Schmidt, 1862)

Mycale? [details]

 Taxonomy

 for Mycale velutata (Schmidt, 1862)

Mycale? [details]

 Taxonomy

 for Myxilla septentrionalis Fristedt, 1887

Myxilla? [details]

 Taxonomy

 for Ophlitaspongia papilla sensu Ferrer Hernández, 1914

Ophlitaspongia? [details]

 Taxonomy

 for Pseudosuberites simplicima (Bowerbank, 1874)

probably but not certainly P.sulphureus [details]

 Taxonomy

 for Raspailia formidabilis Hanitsch, 1895

Raspailia? [details]

 Taxonomy

 for Raspailia howsei (Bowerbank, 1866)

Raspailia (Raspailia) hispida ? [details]

 Taxonomy

 for Raspailia rectangula (Bowerbank, 1874)

Raspailia? [details]

 Type locality

 for Histodermella apuliae Sarà, 1969

Curva Padovani, near Bari, S Italy, 34 m. [details]

 Validity

 for Phorbas paupertas sensu Boury-Esnault, 1971

Although Bowerbank is cited as the author of this species, there are two different species bearing this name, a ... [details]

 Validity

 for Rhabderemia parasitica (Carter, 1876)

R. parasitica? Uncertain. [details]