Sealife guideThe Octopoda orderThe taxonomy of marine species

Explore the taxonomy of marine mollusca including squid, shellfish, nudibranchs, octopus, cuttlefish !

Curled octopus
(Eledone cirrhosa)

North Pacific giant octopus
(Enteroctopus dofleini)

Coconut octopus
(Amphioctopus marginatus)

Common octopus
(Octopus vulgaris)

Mimic octopus
(Thaumoctopus mimicus)

White-spotted octopus
(Callistoctopus macropus)

Our latestUpdates

Thursday, April 23rd 2026

Where to see groupers in the Mediterranean ?

Discover where to see groupers in the Mediterranean: the best diving spots and protected marine areas to observe this iconic fish in its natural habitat.

Monday, April 20th 2026

The broadnose sevengill shark

Discover the broadnose sevengill shark (Notorynchus cepedianus), a large primitive coastal shark with seven gill slits living in temperate and subtropical waters around the world.

Monday, March 2nd 2026

The blueface angelfish

The blueface angelfish is a very colorful fish of the tropical coral reefs of the Indo-Pacific, recognizable by its bright blue head and its bluish body finely reticulated with yellow.

Photo of the Day

Eponge tonneau
(Xestospongia muta)