Giant barrel sponges (Xestospongia muta) are common in the upper mesophotic zone at San Antonio Bank.
Giant Barrel Sponges
Image courtesy of Cuba’s Twilight Zone Reefs and Their Regional Connectivity. Download larger version (jpg, 403 KB).

Giant barrel sponges (Xestospongia muta) are common in the upper mesophotic zone at San Antonio Bank.

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