Literature
- Ackers, R.G.A., D. Moss and B.E. Picton 1992. Sponges of the British Isles ("Sponge V"), a colour guide and working document. Marine Conservation Society, 175 pp.
- Borojevic, R., L. Cabioch and C. Lévi 1968. Spongiaires. Inventaire Faune Marine de Roscoff. 44 pp.
- Boury-Esnault, N. and T. Lopes 1985. Les Démosponges litorales de l'archipel des Açores. Ann. Inst. Océanogr. Monaco. 61 (2): 149-225.
- Hanitsch, R. 1894b. Revision of the generic nomenclature and classification in Bowerbank's "British Spongiadae". Trans. Biol. Soc. Liverpool, 8: 173-195.
- Stephens, J. 1916. Preliminary notice of some Irish sponges. Monaxonellidae (suborder Sigmatomonaxonellida) obtained by the Fisheries Branch of the Department of Agriculture and Technical Instruction, Ireland. Ann. Mag. nat. Hist. , (8) 17: 232-242.
- Stephens, J. 1920. Sponges of the coast of Ireland. II.-The Tetraxonida (Concluded). Fisheries Ireland, Sci. Investigations,.
- Topsent, E. 1893. Nouvelle série de diagnoses d'éponges de Roscoff et de Banyuls. Arch. Zool. expér. gén., (3) 1 (notes and revue): xxiii-xliii.
- Topsent, E. 1897. Sur le genre Halicnemia (Bow.). Mém. Soc. Zool. France, 10: 235-251.
- Topsent, E. 1928. Spongiaires de l'Atlantique et de la Méditerranée provenant des croisières de Prince Albert 1er de Monaco. Rés. Camp. sci. Prince Albert Monaco, 74: 1-376, pls. 1-11.