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Thyonella gemmata is a burrowing sea cucumber (holothuroid) found in the North Atlantic. Individuals reach sizes up to 15 cm and are generally gray, brown, olive, or black in color with varying degrees of mottling. T. gemmata’s body is roughly U-shaped, going from a thick central bulge to tapered ends. It is one of the more common shallow water sea cucumbers in the eastern Gulf of Mexico, and consequently large numbers of this species have been known to wash ashore during storms.


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Supplier: Stefan Countryman

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