Sealife guideThe Demosponges classThe taxonomy of marine species

Explore the taxonomy of sponges including demosponges, calcisponges and glass sponges !

Rred boring sponge
(Cliona delitrix)

Azure vase sponge
(Callyspongia plicifera)

Caribbean giant barrel sponge
(Xestospongia muta)

Giant barrel sponge
(Xestospongia testudinaria)

Stony sponge
(Petrosia ficiformis)

Orange-red encrusting sponge
(Crambe crambe)

Yellow tube sponge
(Aplysina fistularis)

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Thursday, October 2nd 2025

The California sheephead

Discover the California sheephead, a colorful fish of the eastern Pacific. Learn about its appearance, diet, habitat in kelp forests, unique sex-changing ability and role in marine ecosystems.

Monday, September 29th 2025

The banded guitarfish

Discover the banded guitarfish, a benthic eastern Pacific species with unique camouflage, living on sandy and rocky bottoms.

Thursday, September 25th 2025

The tiger snake eel

Explore the tiger snake eel (Myrichthys maculosus), featuring a creamy to pale yellow body dotted with black spots, and learn about its habitat, behavior and role in coral reef ecosystems.

Photo of the Day

Salmacine
(Filograna implexa)