Radiella Schmidt, 1870

Ekins, Merrick, Erpenbeck, Dirk, Wörheide, Gert & Hooper, John N. A., 2023, Deep Water Polymastiidae (Porifera, Polymastiida) from the South West Pacific, Zootaxa 5369 (1), pp. 57-88 : 59

Radiella Schmidt, 1870

Diagnosis. Circular lenticular or hemispherical Polymastiidae . The skeleton of the basal surface of the sponge is composed of an envelope of principal subtylostyles or styles covered by a thin palisade of ectosomal tylostyles. The upper surface is composed of one or two layers of tylostyles. The choanosomal skeleton is composed of diverging tracts emanating from a central nucleus at the base of the sponge and by groups of fusiform tylostyles. The inhalant and exhalant apertures are grouped on papillae ( Boury-Esnault 2002).