How to spot the Spanish dancer nudibranch when scuba diving
Hexabranchus aureomarginatus
Widely distributed throughout the Indo-Pacific region from the Red Sea and East Africa to Hawaii and the Central Pacific, south to Australia and north to Japan. Found in tropical and warm temperate waters on coral reefs and rocky substrates.
Can be found year-round in their range, but more commonly spotted during night dives when they're typically more active. During the day, they often hide in crevices or under ledges.
Tropical and warm temperate waters, typically 22-29°C (72-84°F).
Found on coral reefs, rocky substrates, and occasionally sandy areas, from shallow waters down to about 40m depth. One of the largest nudibranchs (up to 40cm), recognizable by their vibrant red coloration and undulating swimming motion when disturbed (resembling a flamenco dancer, hence the name). During the day, look carefully under ledges and in crevices. Night dives significantly increase chances of seeing them actively moving about. Good locations include the Red Sea (Egypt), Indonesia (Komodo, Bali), Philippines, Malaysia (Sipadan), and many sites throughout the tropical Pacific.
Worldwide observation of the Hexabranchus aureomarginatus
Scroll out to see a bigger view
Data sources
- Photos: Wikimedia Commons
- Distribution and specie data: GBIF (Global Biodiversity Information Facility)
Still on dry land?
Join fellow dive enthusiasts who've already discovered the easiest way to track their underwater adventures and their diving analytics!