Goniobranchus geometricus (Risbec, 1928) ♡ Like 0 Observation Details Photographer 黒田貴司 Location Japan > Chiba > Katuyama > Kacchama Date 2015/09/18 Size 20mm Depth 15.0m Water temperature 24.0℃ Related Links Species details: Goniobranchus geometricus (Risbec, 1928) More from 黒田貴司 More observations from this area Submit Photo Send Message Share Permanent URL: https://en.seaslug.world/observation/1900