Genus
Common name: Blue Dragon Nudibranch
Scientific name: Pteraeolidia
Pteraeolidia is a genus of sea slugs, specifically aeolid nudibranchs, known for their striking appearance and elongated bodies. Members of this genus, such as Pteraeolidia ianthina, are often referred to as Blue Dragon Nudibranchs due to their vibrant blue and purple coloration. They are fascinating for their ability to incorporate zooxanthellae from their prey, allowing them to photosynthesize like plants. This symbiotic relationship is a remarkable example of kleptoplasty. In the aquarium, they require specialized care, including a steady supply of specific hydroids to feed on, making them suitable for experienced hobbyists.