Sealife guideDemosponges: the most common sponges of the seaThe marine sponges
Last updated on 09/25/2025 at 11:32 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)
(Callyspongia plicifera)

Caribbean giant barrel sponge
(Xestospongia muta)
(Xestospongia muta)

Giant barrel sponge
(Xestospongia testudinaria)
(Xestospongia testudinaria)

Orange-red encrusting sponge
(Crambe crambe)
(Crambe crambe)

Rred boring sponge
(Cliona delitrix)
(Cliona delitrix)

Stony sponge
(Petrosia ficiformis)
(Petrosia ficiformis)

Yellow tube sponge
(Aplysina fistularis)
(Aplysina fistularis)
Our latestUpdates

Friday, November 28th 2025
Disney Hollywood Studios, from Star Wars to Toy Story
Dive into the magical world of Disney's Hollywood Studios: Star Wars and Toy Story attractions and shows for the whole family.

Wednesday, November 19th 2025
Tenerife island
Tenerife, the largest of the Canary islands, is a volcanic gem in the Atlantic ocean. It boasts an incredible variety of landscapes, from golden or black sand beaches to the subtropical forests of the Anaga mountains and the majestic Teide volcano, Spain's highest peak. With its picturesque villages, rich local culture and countless outdoor activities, Tenerife is a perfect destination for every type of traveler.

Saturday, November 15th 2025
Batz island
Located in the English Channel off the northern coast of Brittany, just a few kilometers from the town of Roscoff, Batz island is a true little haven of peace where you can enjoy its wild landscapes, unspoiled beaches and historical heritage.
Photo of the Day

Requin cuivre
(Carcharhinus brachyurus)
(Carcharhinus brachyurus)
