Spicule Images: a) Tylostyle megascleres; b) ends of tylostyles; c) microscleres: spherasters and diplaster-like developmental stages; d) enlargement of spherasters showing branchelets at the tips (arrow); e) micraster (microamphiaster) microscleres. (SEM photos courtesy of Inga Conti-Jerpe, UNCW). Sample from the Bahamas.