Sealife guideThe Ocypodidae familyThe taxonomy of marine species

Explore the taxonomy of marine arthropods with a dedicated focus on crustaceans !

Atlantic ghost crab
(Ocypode quadrata)

Blue fiddler crab
(Uca tetragonon)

Bowed fiddler crab
(Uca arcuata)

Calling fiddler crab
(Uca vocans)

Ghost crab
(Ocypode gaudichaudii)

Indo-pacific ghost crab
(Ocypode ceratophthalmus)

Pink ghost crab
(Ocypode ryderi)

Red sea ghost crab
(Ocypode saratan)

Ring-legged fiddler crab
(Uca annulipes)

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

Sabelle fendue
(Anamobaea oerstedi)