Endectyon Topsent, 1920

Sandes, Joana, Recinos, Radharanne, Pinheiro, Ulisses & Muricy, Guilherme, 2019, New records of Endectyon (Endectyon) xerampelina (Lamarck, 1814) (Demospongiae: Axinellida: Raspailiidae) from the Tropical Western Atlantic Ocean, with comments on its distribution and type locality, Zootaxa 4608 (1), pp. 90-100 : 91

Subgenus Endectyon Topsent, 1920

Diagnosis. Arborescent growth form, with a compressed axial skeleton cored by stout choanosomal principal styles, oxeas, strongyles or anisostrongyles, and plumose extra-axial skeleton cored by long subectosomal auxiliary styles producing a hispid surface, surrounded by bundles of ectosomal auxiliary styles at the surface. Echinating acanthostyles are confined to outside the axial skeleton and have recurved (clavulate) hooks, with both ends spined or slightly subtylote with smooth bases, but lack any basal rhabd (from Hooper 2002, with our amendments in bold typeface).