Franco Banfi / Orange elephant ear sponge (Agelas clathrodes) Santa Lucia, Camaguey, Cuba, Caribbean Sea, Atlantic Ocean

Georgette Douwma / Stove-pipe sponge (Aplysina archeri) and Orange elephant ear sponge (Agelas clathrodes) Bonaire, Netherlands Antilles, Caribbean, Atlantic Ocean.

Alex Mustard / A diver exploring a coral reef with formation of brown tube sponges (Agelas conifera) red rope sponges (Amphimedon compressa) and deepwater sea fans (Iciligorgia nodulifera) East End, Grand Cayman, Ca...

Juergen Freund / Detail of Orange elephant ear sponge (Agelas clathrodes) with crinoid / featherstar attached, Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Brown tube sponge (Agelas tubulata) in the reef, North Sulawesi, Indonesia.

Juergen Freund / Details of Orange elephant ear sponge (Agelas clathrodes) with crinoids / featherstars attached, Kimbe Bay, West New Britain, Papua New Guinea

Juergen Freund / Orange elephant ear sponge (Agelas clathrodes), with other sponges and gorgonians, Indo-pacific

Alex Mustard / Colourful coral reef wall, with yellow branching tube sponges (Pseudoceratina crassa), brown tube sponges (Agelas conifera) and red rope sponges (Amphimedon compressa), in front of deepwater sea fans...

Franco Banfi / Reef with Orange elephant ear sponge (Agelas clathrodes) and scuba diver on the background, Santa Lucia, Camaguey, Cuba, Caribbean Sea, Atlantic Ocean. November 2007.

Georgette Douwma / Graysby fish (Cephalopholis cruentatus) lying on Brown tube sponge (Agelas conifera) Bonaire, Netherlands Antilles, Caribbean

Georgette Douwma / Orange elephant ear sponge (Agelas clathrodes) Bonaire, Netherlands Antilles, Caribbean, Atlantic Ocean.