Sealife guideDemosponges: the most common sponges of the seaThe marine sponges

Last updated on 09/03/2025 at 11:26 PM

Taxonomy

Phylum: Porifera, sponges
Class:
- Common Name: Demosponges
- Scientific Name: Demospongia

Description

Demosponges are the most commonly encountered sponges. They are primarily marine species, but a few freshwater species also exist.

Demosponges are characterized by a skeleton made of spongin, which may be reinforced by siliceous spicules. The spongin provides elasticity to the sponge.

The yellow tube sponge stands out with its bright color

Demosponges include the most varied sponges in terms of shape and color. They can be found at all ocean depths.

Geographic range

Demosponges are found throughout the world’s seas and oceans.

Did You Know ?

The natural bath sponge you find in stores is actually the skeleton of a demosponge without siliceous spicules.

Discover marine demosponge

Azure vase sponge
(Callyspongia plicifera)

Caribbean giant barrel sponge
(Xestospongia muta)

Giant barrel sponge
(Xestospongia testudinaria)

Orange-red encrusting sponge
(Crambe crambe)

Rred boring sponge
(Cliona delitrix)

Stony sponge
(Petrosia ficiformis)

Yellow tube sponge
(Aplysina fistularis)

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