Pteraeolidia semperi (Bergh, 1870) ♡ Like 0 Observation Details Photographer オキャノン Location Japan > Shizuoka > Usami > Beach Date 2023/01/02 Size 15mm Depth 15.0m Water temperature 17.0℃ Related Links Species details: Pteraeolidia semperi (Bergh, 1870) More from オキャノン More observations from this area Submit Photo Send Message Share Permanent URL: https://en.seaslug.world/observation/31883