Sealife guideThe Scyphozoans classThe taxonomy of marine species

Explore the taxonomy of cnidarians and especially sea anemones, corals and jellyfish !

Blue blubber jellyfish
(Catostylus mosaicus)

Fried egg jellyfish
(Cotylorhiza tuberculata)

White spotted jellyfish
(Phyllorhiza punctata)

Barrel jellyfish
(Rhizostoma pulmo)

Blue jellyfish
(Cyanea lamarckii)

Lion's mane jellyfish
(Cyanea capillata)

Atlantic sea nettle
(Chrysaora quinquecirrha)

Black sea nettle
(Chrysaora achlyos)

Compass jellyfish
(Chrysaora hysoscella)

Purple-striped jelly
(Pelagia noctiluca)

Sea nettle
(Chrysaora fuscescens)

Moon jellyfish
(Aurelia aurita)

Our latestUpdates

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.

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.

Monday, September 7th 2026

The wedgetail triggerfish

Discover the wedgetail triggerfish, Hawaii's famous state fish. Learn about its vibrant colors, coral reef habitat, unique behavior, and cultural significance in Hawaii.

Photo of the Day

Girelle paon à taches d'encre
(Thalassoma hardwicke)