Topsent, E. (1892). Contribution à l'étude des Spongiaires de l'Atlantique Nord (Golfe de Gascogne, Terre-Neuve, Açores). Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco. 2: 1-165, pls I-XI. page(s): 68-69; note: Topsent has indicated Ridley as author of this species [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. Petrosia variabilis sensu Topsent, 1892. Accessed at: https://www.marinespecies.org/porifera/porifera.php/porifera.php?p=taxdetails&id=132925 on 2025-05-28
original descriptionTopsent, E. (1892). Contribution à l'étude des Spongiaires de l'Atlantique Nord (Golfe de Gascogne, Terre-Neuve, Açores). Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco. 2: 1-165, pls I-XI. page(s): 68-69; note: Topsent has indicated Ridley as author of this species [details]
additional sourceTopsent, E. (1904). Spongiaires des Açores. Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco. 25: 1-280, pls 1-18., available online athttps://biodiversitylibrary.org/page/40603003 page(s): 240 [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]
new combination referenceVan Soest, R.W.M.; Hooper, J.N.A.; Butler, P.J. (2020). Every sponge its own name: removing Porifera homonyms. Zootaxa. 4745(1): 1-93., available online athttps://doi.org/10.11646/zootaxa.4745.1.1 page(s): 64 [details] Available for editors [request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Azores Canaries Madeira
From editor or global species database
Identification Topsent's (1892, 1904) use of the combination Petrosia variabilis is based on his misapplied concept of the North Australian Schmidtia variabilis Ridley, 1884. It is unlikely that the deep-sea species of Petrosia found near the Azores belongs to the same species. Until the erection of a new name for the Azores species we employ the name variabilis sensu Topsent, 1892 to it. [details]
Present