Sealife guideThe Ophidiasteridae familyThe taxonomy of marine species

Explore the taxonomy of marine echinoderms with a dedicated focus on starfish and sea urchins !

The class Asteroidea, commonly known as starfish, includes more than 1,600 known species. These marine animals can reach over one meter in span with their arms fully extended and typically have five arms or a multiple of five, with the number potentially varying due to regeneration after an arm is lost. Their skeleton is made up of adjacent but not fused calcareous plates.

Blue sea star
(Linckia laevigata)

Egyptian sea star
(Gomophia egyptiaca)

Smooth starfish
(Hacelia attenuata)

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Friday, November 28th 2025

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Wednesday, November 19th 2025

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Tenerife, the largest of the Canary islands, is a volcanic gem in the Atlantic ocean. It boasts an incredible variety of landscapes, from golden or black sand beaches to the subtropical forests of the Anaga mountains and the majestic Teide volcano, Spain's highest peak. With its picturesque villages, rich local culture and countless outdoor activities, Tenerife is a perfect destination for every type of traveler.

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Photo of the Day

Gorette blanche
(Haemulon plumierii)