Axinyssa Lendenfeld, 1897

Boury-Esnault, Nicole, Marschal, Christian, Probst, Jean-Michel Korn- & Barnathan, Gilles, 2002, A new species of Axinyssa Lendenfeld, 1897 (Porifera, Demospongiae, Halichondrida) from the Senegalese coast, Zootaxa 117, pp. 1-8 : 2

Axinyssa Lendenfeld, 1897

Definition (emended from Hooper et al. 1997): Massive, lobate or tubular sponges with conulose surface. Often fistulose surface processes with apical oscules are present. Choanosomal skeleton with widely spaced tracts of large oxeas vaguely radiating. Subectosomal skeleton more highly organised with regular tracts of large oxeas ascending to surface and ending as brushes in the conules of the surface. Ectosomal region with a distinct skeleton, constituted by tangential oxeas located between the brushes of the conules. Spicules: two size classes of oxeas, occasionally with stylote modifications.