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Selenka's sea cucumber tubercle | Stichopus horrens

This is a 4x life-size close-up view of a single tubercle of a Selenka's sea cucumber (Stichopus horrens). The tubercles give this species their characteristic appearance. The sea cucumbers extend (as seen here) and retract the tubercles frequently. The tubercles collapse inward along the concentric rings when retracted. Photographed in Kagoshima Prefecture, Japan.

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Filename: stichopus-horrens-sea-cucumber-tubercle-202405-0703.tif
Copyright: Copyright Tony Wu. All rights reserved. No duplication, reproduction or usage without prior written permission.
Image Size: 8256x5504 / 260.3MB; https://www.photoshelter.com/support/license#rm; https://www.tony-wu.com/contact-tony-wu; Echinoderm Sea Cucumber Animalia Echinodermata Holothuroidea Synallactida Stichopodidae Stichopus horrens Selenka's Sea Cucumber Oni-ibo-namako Super Macro Pacific Japan Kagoshima Prefecture
Contained in galleries: Super Macro, Marine Life | Japan

This is a 4x life-size close-up view of a single tubercle of a Selenka's sea cucumber (Stichopus horrens). The tubercles give this species their characteristic appearance. The sea cucumbers extend (as seen here) and retract the tubercles frequently. The tubercles collapse inward along the concentric rings when retracted. Photographed in Kagoshima Prefecture, Japan.