Axinella microdragma (Lendenfeld, 1897) accepted as Axinella infundibuliformis (Linnaeus, 1759) (basis of record)
Axinella multiformis (Vosmaer, 1885) accepted as Acanthella multiformis Vosmaer, 1885 (basis of record)
Axinella thielei (Topsent, 1898) accepted as Higginsia thielei Topsent, 1898 (basis of record)
Baeria johnstonii (Carter, 1871) accepted as Leuconia johnstonii Carter, 1871 (basis of record)
Baeria nivea (Grant, 1826) accepted as Leuconia nivea (Grant, 1826) (basis of record)
Chelonaplysilla schoenus (Carter, 1876) accepted as Chelonaplysilla noevus (Carter, 1876) (basis of record)
Esperiopsis schmidtii Arnesen, 1903 accepted as Echinostylinos schmidtii (Arnesen, 1903) (additional source)
Eumastia appendiculata (Schmidt, 1875) accepted as Halichondria (Halichondria) panicea (Pallas, 1766) (basis of record)
Iophonopsis pattersoni (Bowerbank, 1858) accepted as Iophon nigricans (Bowerbank, 1858) (source of synonymy)
Microciona tenuissima (Stephens, 1916) accepted as Clathria (Microciona) tenuissima (Stephens, 1916) (source of synonymy)
Mycale contarenii (Lieberkühn, 1859) represented as Mycale (Aegogropila) contarenii (Lieberkühn, 1859) (additional source)
Phakellia setosa (Bowerbank, 1873) accepted as Phycopsis setosa (Bowerbank, 1873) (basis of record)
Scypha ananus accepted as Leucandra ananas (Montagu, 1814) (basis of record)
Scypha elegans (Bowerbank, 1845) accepted as Sycon elegans (Bowerbank, 1845) (basis of record)
Scypha quadrangulata (Schmidt, 1868) accepted as Sycon quadrangulatum (Schmidt, 1868) (basis of record)
Scypha raphanus (Schmidt, 1862) accepted as Sycon raphanus Schmidt, 1862 (additional source)
Scypha setosa (Schmidt, 1862) accepted as Sycon setosum Schmidt, 1862 (basis of record)
Scypha villosa (Haeckel, 1870) accepted as Sycon villosum (Haeckel, 1870) (basis of record)
Spongosorites glabra (Topsent, 1898) accepted as Topsentia glabra (Topsent, 1898) (basis of record)
Stylostichon microcionides (Carter, 1876) accepted as Phorbas perarmatus (Bowerbank, 1866) (new combination reference)
Suberites lutea Solé-Cava & Thorpe, 1986 (basis of record)
Suberites rubrus Solé-Cava & Thorpe, 1986 (basis of record)
Vosmaeria laevigata Topsent, 1896 accepted as Vosmaeria levigata Topsent, 1896 (additional source)