scubaseason

Spanish Dancer Nudibranch

Hexabranchus sanguineus

Sighting evidence at San Miguel Bay Drop-Off, Donsol

Spanish Dancer Nudibranch

Photo: Daniel Benák · © all rights reserved

Spanish dancers emerge on night dives as the largest and most spectacular of all nudibranchs, their brilliant scarlet and white bodies undulating through the water column in a swimming display that is unmistakably their namesake dance. Individuals up to 50cm across are common on the San Miguel wall, and they are frequently accompanied by their commensal partner shrimp clinging between the cerata. The wall's rich invertebrate community supports a wide variety of nudibranch species beyond the Spanish dancer, making night diving here productive for macro photographers.

Evidence at this site

No confirmed records on file at this site

Spanish Dancer Nudibranch is listed as a curated species here based on historical reports.

How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites