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 striped remora
Monday, September 14th 2026
The striped remora
Discover the striped remora (Echeneis naucrates), a marine fish easily recognized by the suction disc on its head, which allows it to attach to large marine animals and travel with them.
The Caribbean king crab
Saturday, September 12th 2026
The Caribbean king crab
Discover the Caribbean king crab (Maguimithrax spinosissimus), an impressive reef crab found throughout the Caribbean and western Atlantic.
The reticulated sandperch
Thursday, September 10th 2026
The reticulated sandperch
Discover the reticulated sandperch (Parapercis tetracantha), a small Indo-Pacific fish known for its elongated body and distinctive brown and white pattern.
Photo of the Day
Blennie d'Aron (Ecsenius aroni)
Blennie d'Aron
(Ecsenius aroni)