Amphilectus fucorum (Esper, 1794) (basis of record)
Axinella infundibuliformis (Linnaeus, 1759) (additional source)
Biemna variantia (Bowerbank, 1858) (additional source)
Bubaris vermiculata (Bowerbank, 1866) (additional source)
Dysidea fragilis (Montagu, 1814) (additional source)
Guancha lacunosa (Johnston, 1842) accepted as Clathrina lacunosa (Johnston, 1842) (additional source)
Haliclona angulata (Bowerbank, 1866) represented as Haliclona (Gellius) angulata (Bowerbank, 1866) (basis of record)
Haliclona cinerea (Grant, 1826) represented as Haliclona (Reniera) cinerea (Grant, 1826) (basis of record)
Iophon nigricans (Bowerbank, 1858) (additional source)
Mycale (Mycale) lingua (Bowerbank, 1866) (basis of record)
Myxilla incrustans (Johnston, 1842) represented as Myxilla (Myxilla) incrustans (Johnston, 1842) (additional source)
Pachymatisma johnstonia (Bowerbank in Johnston, 1842) (additional source)
Paratimea constellata (Topsent, 1893) (additional source)
Phakellia ventilabrum (Linnaeus, 1767) (additional source)
Phorbas fictitius (Bowerbank, 1866) (additional source)
Plocamionida ambigua (Bowerbank, 1866) (basis of record)
Polymastia boletiformis (Lamarck, 1815) (additional source)
Prosuberites epiphytum sensu Topsent, 1900 accepted as Protosuberites denhartogi van Soest & de Kluijver, 2003 (additional source)
Stelligera rigida (Montagu, 1814) accepted as Stelligera montagui Van Soest & Hooper, 2020 (additional source)
Stelligera stuposa (Ellis & Solander, 1786) (additional source)
Suberites carnosus (Johnston, 1842) (additional source)
Suberites ficus (Johnston, 1842) (additional source)
Sycon ciliatum (Fabricius, 1780) (additional source)

Celtic Seas for Amphilectus fucorum (Esper, 1794) 
Celtic Seas for Axinella infundibuliformis (Linnaeus, 1759) 
Celtic Seas for Biemna variantia (Bowerbank, 1858) 
Celtic Seas for Bubaris vermiculata (Bowerbank, 1866) 
Celtic Seas for Dysidea fragilis (Montagu, 1814) 
Celtic Seas for Haliclona angulata (Bowerbank, 1866) 
Celtic Seas for Haliclona cinerea (Grant, 1826) 
Celtic Seas for Iophon nigricans (Bowerbank, 1858) 
Celtic Seas for Mycale (Mycale) lingua (Bowerbank, 1866) 
Celtic Seas for Myxilla incrustans (Johnston, 1842) 
Celtic Seas for Myxilla incrustans (Johnston, 1842) 
Celtic Seas for Pachymatisma johnstonia (Bowerbank in Johnston, 1842) 
Celtic Seas for Paratimea constellata (Topsent, 1893) 
Celtic Seas for Phakellia ventilabrum (Linnaeus, 1767) 
Celtic Seas for Phorbas fictitius (Bowerbank, 1866) 
Celtic Seas for Plocamionida ambigua (Bowerbank, 1866) 
Celtic Seas for Polymastia boletiformis (Lamarck, 1815) 
Celtic Seas for Prosuberites epiphytum sensu Topsent, 1900 
Celtic Seas for Stelligera rigida (Montagu, 1814) 
Celtic Seas for Stelligera stuposa (Ellis & Solander, 1786) 
Celtic Seas for Suberites carnosus (Johnston, 1842) 
Celtic Seas for Suberites ficus (Johnston, 1842) 
Celtic Seas for Sycon ciliatum (Fabricius, 1780) 

 Synonymy

 for Hymeniacidon hillieri Bowerbank, 1882

The black color described by Bowerbank as the species character is known to occur in freshly collected specimens of ... [details]