AMPHORISCIDAE Dendy, 1892

Chagas, Cléslei & Cavalcanti, Fernanda F., 2021, Partial taxonomic revision of Amphoriscus Haeckel, 1870 (Porifera: Calcarea) with description of A. decennis sp. nov., Zootaxa 5061 (1), pp. 39-68 : 41

Family AMPHORISCIDAE Dendy, 1892

“ Leucosolenida with syconoid, sylleibid or leuconoid organisation, and a distinct cortex supported by tangential tetractines whose centripetal apical actines cross the outer part or the whole of the choanosome. Tangential triactines and small tetractines may also be present in the cortex. The choanoskeleton is typically inarticulated, composed of apical actines of cortical tetractines and the unpaired actines of subatrial spicules. In species with a thick wall, scattered triactines and/or tetractines may also be present, either among the spicules of the inarticulated choanoskeleton or forming a distinct subatrial layer. An atrial skeleton is always present” ( Borojevic et al. 2002).