Alex Mustard / Red boring sponge (Cliona delitrix) three excurrent apertures covered in Sponge zoanthids (Parazoanthus parasiticus) East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Alex Mustard / Sponge brittle star (Ophiactis sp) clambering over a Red boring sponge (Cliona delitrix) covered in Sponge zoanthids (Parazoanthus parasiticus) East End, Grand Cayman, Cayman Islands, British West Ind...