Biemnida is an order of demosponges in the subclass
Heteroscleromorpha
Heteroscleromorpha is a subclass of demosponges within the phylum Porifera
Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms th ...
.van Soest, R. (2015) Biemnida. In: Van Soest, R.W.M; Boury-Esnault, N.; Hooper, J.N.A.; Rützler, K.; de Voogd, N.J.; Alvarez de Glasby, B.; Hajdu, E.; Pisera, A.B.; Manconi, R.; Schoenberg, C.; Klautau, M.; Picton, B.; Kelly, M.; Vacelet, J.; Dohrmann, M.; Díaz, M.-C.; Cárdenas, P.; Carballo, J. L. (2016). World Porifera database. Accessed through: World Register of Marine Species on 2017-02-17.