Sealife guideThe Rhizostomeae orderThe taxonomy of marine species

Explore the taxonomy of cnidarians and especially sea anemones, corals and jellyfish !
Blue blubber jellyfish (Catostylus mosaicus)
Blue blubber jellyfish
(Catostylus mosaicus)
Fried egg jellyfish (Cotylorhiza tuberculata)
Fried egg jellyfish
(Cotylorhiza tuberculata)
White spotted jellyfish (Phyllorhiza punctata)
White spotted jellyfish
(Phyllorhiza punctata)
Barrel jellyfish (Rhizostoma pulmo)
Barrel jellyfish
(Rhizostoma pulmo)

Our latestUpdates

The skunk cleaner shrimp
Friday, August 28th 2026
The skunk cleaner shrimp
Discover the skunk cleaner shrimp (Lysmata amboinensis), a small tropical shrimp famous for cleaning parasites and debris from reef fish.
The islands of Japan: an archipelago of a thousand faces
Wednesday, August 26th 2026
The islands of Japan: an archipelago of a thousand faces
Discover the islands of Japan, a vast archipelago with diverse landscapes ranging from volcanic islands and tropical beaches to traditional villages and the major islands of Honshu, Hokkaido, Kyushu, and Shikoku.
The common European lobster
Monday, August 24th 2026
The common European lobster
Discover the common European lobster (Homarus gammarus), a large crustacean found in the cold and temperate coastal waters of the Northeast Atlantic. Learn about its distinctive features, habitat, diet, and fascinating reproductive biology.
Photo of the Day
Poisson lune (Mola mola)
Poisson lune
(Mola mola)