Asconema setubalense Kent, 1870 (additional source)
Chondrocladia gigantea (Hansen, 1885) represented as Chondrocladia (Chondrocladia) grandis (Verrill, 1879) (additional source)
Clathria anchorata (Carter, 1874) represented as Clathria (Paresperia) anchorata (Carter, 1874) (additional source)
Haliclona heterofibrosa (Lundbeck, 1902) accepted as Haliclona (Rhizoniera) rosea (Bowerbank, 1866) (source of synonymy)
Haliclona tenuiderma (Lundbeck, 1902) (new combination reference)
Haliclona ventilabrum (Fristedt, 1887) accepted as Cladocroce ventilabrum (Fristedt, 1887) (new combination reference)
Iotrochota abyssi (Carter, 1874) accepted as Iotroata abyssi (Carter, 1874) (additional source)
Melonanchora elliptica Carter, 1874 (additional source)
Menyllus dogieli (Koltun, 1955) accepted as Iophon dogieli Koltun, 1955 (new combination reference)
Metschnikowia spinispiculum (Carter, 1876) accepted as Janulum spinispiculum (Carter, 1876) (additional source)
Mycale lingua (Bowerbank, 1866) represented as Mycale (Mycale) lingua (Bowerbank, 1866) (additional source)
Myxilla (Stelodoryx) flabellata (Koltun, 1959) accepted as Stelodoryx flabellata Koltun, 1959 (original description)
Ophlitaspongia hjorti (Arnesen, 1920) accepted as Clathria (Clathria) hjorti (Arnesen, 1920) (additional source)
Platychalina flabelliformis (Hansen, 1885) accepted as Dendoricella flabelliformis (Hansen, 1885) (new combination reference)
Platychalina palmata (Ellis & Solander, 1786) accepted as Isodictya palmata (Ellis & Solander, 1786) (new combination reference)
Plocamionida ambigua (Bowerbank, 1866) (additional source)
Thenea muricata (Bowerbank, 1858) (additional source)

Icelandic Exclusive Economic Zone for Menyllus dogieli (Koltun, 1955) 
Northern Atlantic Boreal Lower Bathyal Province for Asconema setubalense Kent, 1870 
Northern Atlantic Boreal Lower Bathyal Province for Chondrocladia gigantea (Hansen, 1885) 
Northern Atlantic Boreal Lower Bathyal Province for Haliclona tenuiderma (Lundbeck, 1902) 
Northern Atlantic Boreal Lower Bathyal Province for Haliclona ventilabrum (Fristedt, 1887) 
Northern Atlantic Boreal Lower Bathyal Province for Mycale lingua (Bowerbank, 1866) 
Northern Atlantic Boreal Lower Bathyal Province for Plocamionida ambigua (Bowerbank, 1866) 
Northern Atlantic Boreal Lower Bathyal Province for Thenea muricata (Bowerbank, 1858) 
South and West Iceland for Iotrochota abyssi (Carter, 1874) 
South and West Iceland for Melonanchora elliptica Carter, 1874 
South and West Iceland for Menyllus dogieli (Koltun, 1955) 
South and West Iceland for Metschnikowia spinispiculum (Carter, 1876) 
South and West Iceland for Ophlitaspongia hjorti (Arnesen, 1920)  (inaccurate)
South and West Iceland for Platychalina flabelliformis (Hansen, 1885) 
South and West Iceland for Plocamionida ambigua (Bowerbank, 1866)