Sealife guideThe Holothuroidea classThe taxonomy of marine species

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

The class Holothuroidea, commonly known as sea cucumbers, are benthic marine animals characterized by an elongated, cylindrical body, often lacking the radial symmetry typical of other echinoderms, and possessing a digestive system that runs the length of their body.

Chocolate chip sea cucumber
(Isostichopus badionotus)

Australian sea apple
(Pseudocolochirus axiologus)

Orange sea cucumber
(Cucumaria miniata)

Sea Apple
(Pseudocolochirus violaceus)

Graeffe's sea cucumber
(Pearsonothuria graeffei)

Tiger tail sea cucumber
(Holothuria thomasi)

Pineapple sea cucumber
(Thelenota ananas)

Red striped sea cucumber
(Thelenota rubralineata)

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Photo of the Day

Grande nacre de Méditerranée
(Pinna nobilis)