(of)Topsent, E. (1928). Spongiaires de l'Atlantique et de la M�diterran�e provenant des croisi�res du Prince Albert ler de Monaco. [Atlantic and Mediterranean sponges from the cruises of Prince Albert I of Monaco]. R�sultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco. 74:1-376, pls I-XI. page(s): 264; pl IX fig 2 [details]
de Voogd, N.J.; Alvarez, B.; Boury-Esnault, N.; C�rdenas, P.; D�az, 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.; R�os, P.; R�tzler, K.; Sch�nberg, C.; Turner, T.; Vacelet, J.; van Soest, R.W.M.; Xavier, J. (2025). World Porifera Database. Hymedesmia gracilisigma Topsent, 1928. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025) European Register of Marine Species at: http://marbef.org//marbef.org/data/aphia.php?p=taxdetails&id=191853 on 2025-05-27
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025). European Register of Marine Species. Hymedesmia gracilisigma Topsent, 1928. Accessed at: https://vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=191853 on 2025-05-27
original description(of)Topsent, E. (1928). Spongiaires de l'Atlantique et de la M�diterran�e provenant des croisi�res du Prince Albert ler de Monaco. [Atlantic and Mediterranean sponges from the cruises of Prince Albert I of Monaco]. R�sultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco. 74:1-376, pls I-XI. page(s): 264; pl IX fig 2 [details]
additional sourceVan Soest, R.W.M. (2001). Porifera, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels. 50: 85-103. (look up in IMIS) [details]
additional sourceBurton, M. (1956). The sponges of West Africa. Atlantide Report (Scientific Results of the Danish Expedition to the Coasts of Tropical West Africa, 1945-1946, Copenhagen). 4: 111-147. page(s): 142 [details] Available for editors