Georgette Douwma / Sea cucumber (Thelenota anax) defecating. The most massive holothurian in the Indo-Pacific, reaching 1 meter in length. Andaman Sea, Thailand.
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Juergen Freund / Anal hole of Sea cucumber (Thelenota anax) Sipadan, Malaysia.
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GEORGETTE DOUWMA / Sea cucumber (Thelenota anax) Papua New Guinea