Topsent, E. (1904). Spongiaires des Açores. <em>Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco.</em> 25: 1-280, pls 1-18., available online athttps://biodiversitylibrary.org/page/40603003[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. Leptosastra Topsent, 1904. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=131952 on 2026-09-03
Glover, A.G.; Higgs, N.; Horton, T. (2026). World Register of Deep-Sea species (WoRDSS). Leptosastra Topsent, 1904. Accessed at: https://www.marinespecies.org/deepsea/aphia.php?p=taxdetails&id=131952 on 2026-09-03
original descriptionTopsent, E. (1904). Spongiaires des Açores. <em>Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco.</em> 25: 1-280, pls 1-18., available online athttps://biodiversitylibrary.org/page/40603003[details]
basis of recordHooper, J. N. A. (2002 [2004]). Family Hemiasterellidae Lendenfeld, 1889. Pp. 186–195. <em>In: </em>Hooper, J.N.A.; Van Soest, R.W.M. (2002 [2004]). <em>Systema Porifera. A Guide to the Classification of Sponges.</em> (2 volumes). Kluwer Academic/Plenum Publ., New York. 1708+XLVIII. ISBN 978-1-4615-0747-5 (eBook electronic version).[details] Available for editors
basis of recordHooper, J.N.A. (2002). Family Hemiasterellidae Lendenfeld, 1889. pp. 186-195 <i>in</i>: Hooper, J.N.A.; Van Soest, R.W.M. (Eds.). Systema Porifera: a guide to the classification of sponges. (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow). (look up in IMIS), available online athttps://doi.org/10.1007/978-1-4615-0747-5_20[details] Available for editors
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]