Literature
- Alander, H. 1942. Sponges from the Swedish west-coast and adjacent waters. Thesis Lund Univ., 95 pp., 16 pls.
- Arndt, W. 1935. Porifera. Tierwelt Nord.-Ostsee, IIIa: 1-140, figs. 1-239.
- Arnesen, E. 1903. Spongien von der norwegischen Küste, Monaxonida: Halichondrina. Bergens Mus. Årbok,.
- Burton, M. 1930a. Norwegian sponges from the Norman collection. Proc. zool. Soc. London, 2: 487-546.
- Desqueyroux-Faúndez, R. and S.M. Stone 1992. O. Schmidt sponge catalogue. An illustrated guide to the Graz Museum collection, with notes on additional material. Muséum d'Histoire Naturelle de Genève,190 pp, 49 pls.
- Fristedt, K. 1887. Sponges from the Atlantic and Arctic Ocean and the Behring Sea. Vega Exped., vetensk. Arbeten, 4: 403-471, pls. 22-31.
- Lundbeck, W. 1910. Porifera. Part III. Desmacidonidae (pars). Danish Ingolf Exped., 6: 1-124, 11 pls.
- Schmidt, O. 1875. Nordsee Expedition, 1872. II. Spongien. Jahresber.Comm. Unters. Meeres,.
- Thiele, J. 1903. Beschreibung einiger unzureichend bekannten monaxonen Spongien. Arch. Naturgesch., 67 (1): 375-398.
- Topsent, E. 1913. Spongiaires provenant des campagnes scientifiques de la "Princesse Alice" dans les Mers du Nord. Rés. Camp. sci. Prince Albert Monaco, 45: 1-67.