1. Variety Petrosia expansa var. aruensis (Hentschel, 1912) accepted as Petrosia (Petrosia) expansa (Thiele, 1903) (subgenus assignment and junior synonym)

marine, brackish, fresh, terrestrial

recent only

(of ) Thiele, J. (1903). Kieselschwämme von Ternate. II. <em>Abhandlungen herausgegeben von der Senckenbergischen naturforschenden Gesellschaft.</em> 25: 933-968, pl. XVIII. [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 expansa (Thiele, 1903). Accessed through: Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2025) African Register of Marine Species at: https://marinespecies.org/afremas/aphia.php?p=taxdetails&id=192878 on 2026-07-13

Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2026). African Register of Marine Species. Petrosia expansa (Thiele, 1903). Accessed at: https://www.marinespecies.org/afremas/aphia.php?p=taxdetails&id=192878 on 2026-07-13

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