Pteraeolidia semperi (Bergh, 1870) ♡ Like 0 Observation Details Photographer 吉田健 Location Japan > Fukui > Etizen > LOG front Date 2017/11/27 Size 25mm Depth 4.0m Water temperature 17.5℃ Related Links Species details: Pteraeolidia semperi (Bergh, 1870) More from 吉田健 More observations from this area Submit Photo Send Message Share Permanent URL: https://en.seaslug.world/observation/21447