Photo of Animalia: Barrel Sponge (species: Xestospongia testudinaria) (Gaia Guide)

Photo of Animalia: Barrel Sponge (species: Xestospongia testudinaria) (Gaia Guide)

Photo of Animalia: Barrel Sponge (species: Xestospongia testudinaria)

Barrel Sponge (Xestospongia testudinaria), Ocean Freedom, Upolu Reef
© David Witherall and Jess Nietz

Usage licence: Creative Commons Attribution 3.0 Unported License