(ofSphenophorina singularis Breitfuss, 1898)Breitfuss, L.L. (1898). Kalkschwammfauna des weissen Meeres und der Eismeersküsten des europäischen Russlands. <em>Mémoires de l'Académie Impériale des sciences de St. Pétersbourg.</em> (VIII) 6 (2): 1-40. page(s): 29-30 [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. Grantia singularis (Breitfuss, 1898). Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025) European Register of Marine Species at: https://vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=132185 on 2026-08-14
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2026). European Register of Marine Species. Grantia singularis (Breitfuss, 1898). Accessed at: https://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=132185 on 2026-08-14
original description(ofSphenophorina singularis Breitfuss, 1898)Breitfuss, L.L. (1898). Kalkschwammfauna des weissen Meeres und der Eismeersküsten des europäischen Russlands. <em>Mémoires de l'Académie Impériale des sciences de St. Pétersbourg.</em> (VIII) 6 (2): 1-40. page(s): 29-30 [details]
additional sourceVan Soest, R.W.M. (2001). Porifera, <b><i>in</i></b>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification</i>. <em>Collection Patrimoines Naturels.</em> 50: 85-103. (look up in IMIS) [details]
additional sourceBurton, M. (1930). Norwegian Sponges from the Norman Collection. <em>Proceedings of the Zoological Society of London.</em> 1930 (2): 487-546, pls I-II., available online athttps://doi.org/10.1111/j.1096-3642.1930.tb00989.x[details] Available for editors
Present Inaccurate Introduced: alien Containing type locality