Chromodoris Nudibranch
Chromodoris magnifica
Sighting evidence at Kumomi, Izu Peninsula
Photo: Jean-Paul Cassez · CC BY-NC
Kumomi's Chromodoris nudibranchs graze on toxic sponges, sequestering chemical defences from their prey and displaying brilliant contrasting bands as an honest signal of unpalatability to reef fish. Their reproductive aggregations in spring, where individuals form chains to exchange sperm, are among the most photographed nudibranch behaviours in Japan.
Evidence at this site
No confirmed records on file at this site
Chromodoris Nudibranch is listed as a curated species here based on historical reports.