1. Species Gellius angulatus (Bowerbank, 1866) accepted as Haliclona (Gellius) angulata (Bowerbank, 1866) (genus transfer)
2. Species Gellius flagellifer Ridley & Dendy, 1886 accepted as Haliclona (Flagellia) flagellifera (Ridley & Dendy, 1886) (genus transfer)
3. Species Gellius jugosus (Bowerbank, 1866) accepted as Haliclona (Gellius) fibulata (Schmidt, 1862) (genus transfer and junior synonym)
4. Species Gellius pilosus Kirkpatrick, 1907 accepted as Hemigellius pilosus (Kirkpatrick, 1907) (genus transfer)
5. Species Gellius primitivus Lundbeck, 1902 accepted as Haliclona (Gellius) primitiva (Lundbeck, 1902) (genus transfer)
6. Species Gellius varius (Bowerbank, 1875) accepted as Haliclona (Gellius) varia (Bowerbank, 1875) (genus transfer)

marine, brackish, fresh, terrestrial

recent only

Gray, J.E. (1867). Notes on the Arrangement of Sponges, with the Descriptions of some New Genera. <em>Proceedings of the Zoological Society of London.</em> 1867(2): 492-558, pls XXVII-XXVIII. [details] 

de Voogd, N.J.; Alvarez, B.; Boury-Esnault, N.; Cárdenas, P.; Díaz, M.-C.; Dohrmann, M.; Downey, R.; Goodwin, C.; Hajdu, E.; Hooper, J.N.A.; Kelly, M.; Klautau, M.; Lim, S.C.; Manconi, R.; Morrow, C.; Pinheiro, U.; Pisera, A.B.; Ríos, P.; Rützler, K.; Schönberg, C.; Turner, T.; Vacelet, J.; van Soest, R.W.M.; Xavier, J. (2025). World Porifera Database. Gellius Gray, 1867. Accessed through: Sirenko, B.I.; Clarke, C.; Hopcroft, R.R.; Huettmann, F.; Bluhm, B.A.; Gradinger, R. (eds) (2025) The Arctic Register of Marine Species (ARMS) compiled by the Arctic Ocean Diversity (ArcOD) at: https://marinespecies.org/arms/aphia.php?p=taxdetails&id=183660 on 2025-06-01

Sirenko, B.I.; Clarke, C.; Hopcroft, R.R.; Huettmann, F.; Bluhm, B.A.; Gradinger, R. (eds) (2025). The Arctic Register of Marine Species (ARMS) compiled by the Arctic Ocean Diversity (ArcOD). Gellius Gray, 1867. Accessed at: https://www.marinespecies.org/arms/aphia.php?p=taxdetails&id=183660 on 2025-06-01

[taxonomic tree]