"Bob Marley sponge", Pipestela candelabra Alvarez, Hooper & van Soest, 2008 - sponge taxonomy, sponge identification

Coralline basal skeleton and embedded silica spicules from the coralline sponge Acanthochaetetes wellsi Hartman & Goreau, 1975 - a remnant of once widespread body plan for reef-building among sponges (scanning electron micrograph) - sponge taxonomy, sponge identification

Interlocking silica spicules (desmas) forming the 'lithistid' basal skeleton, and free triaene spicules from the astrophorid sponge Neoschrammeniella norfolki Schlacher-Hoenlinger, Pisera & Hooper, 2005 (scanning electron micrograph) - sponge taxonomy, sponge identification