Fun Facts About the Orange Glowing Dirona! 1. Glowing Nudibranch: The orange glowing Dirona is a type of nudibranch, or sea slug, known for its vibrant orange color and translucent body that seems to glow underwater. 2. Soft and Delicate: Unlike most sea creatures, the Dirona doesn’t have a hard shell. Instead, it’s covered with soft, flowing appendages called cerata that help it absorb oxygen from the water. 3. Defense Mechanism: Although it may look delicate, the Dirona has an interesting way

Correction: This species is a dorid, not an aeolid. The appendage is a gill plume used for respiration—not a cerata. Unlike other mollusks, these colorful sea slugs don't have shells or gills. | National Geographic