(of)Bergquist, P.R. (1961). Demospongiae (Porifera) of the Chatham Islands and Chatham Rise, collected by the Chatham Islands 1954 Expedition. <em>New Zealand Oceanographic Institute Memoir.</em> 13 (139): 169-206. page(s): 180-183 [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. Iophon semispinosum Bergquist, 1961. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=192042 on 2026-01-19
Marine Species Traits editorial board (2026). Marine Species Traits. Iophon semispinosum Bergquist, 1961. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=192042 on 2026-01-19
original description(of)Bergquist, P.R. (1961). Demospongiae (Porifera) of the Chatham Islands and Chatham Rise, collected by the Chatham Islands 1954 Expedition. <em>New Zealand Oceanographic Institute Memoir.</em> 13 (139): 169-206. page(s): 180-183 [details]
Present Inaccurate Introduced: alien Containing type locality