[2] Antillogorgia bipinnata is a colonial soft coral growing in the form of a bipinnate fan usually in a single plane.

The apertures from which the polyps protrude are small and slit-like and are arranged in staggered double rows on either side of the branchlets.

[3][2] Antillogorgia bipinnata is found in shallow water reefs in the Bahamas, South Florida and the Caribbean Sea.

[2] Mature specimens of Antillogorgia bipinnata have symbiotic unicellular algae known as zooxanthellae in their tissues, but these are not present in the planula larvae and the polyp into which it metamorphosizes.

Some of these were observed to be attracted to the polyps and actively swam into their open mouths; successful infection was achieved with some strains of dinoflagellate and not with others.