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Explore the Collection: Sponges

Image of Demosponge

Demosponge

Demosponges (Class: Demospongiae) are the most commonly seen sponges when snorkelling, diving or walking along the beach. This group contains 95% of the world's sponges. Demosponges include the most colourful species and range in size from small encrusting forms to large irregular masses.

Unlike other sponges, demosponges can also be found in freshwater habitats.

Did you know?

The natural sponges sold for use in the home belong to this group.

The skeleton of these sponges can include a protein known as spongin. There are various types of spongin, some of which form fibres to build the skeletal framework. Some demosponges also have spicules made of silicon dioxide.

Photos of Demosponges Found in the Dampier Archipelago

Hymeniacidon sp. Photograph: Jane Fromont, WA Museum

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Sponge species: Calcareous Sponges, Demosponges, Glass Sponges.
Jump to: Flora, Sponges, Corals, Crustaceans, Molluscs, Echinoderms, Fishes.