Thuridilla gracilis (Risbec, 1928) ♡ Like 0 Observation Details Photographer 吉川芳輝 Location Malaysia > Borneo > Mataking Date 2019/01/06 Size 15mm Depth 10.0m Water temperature 28.0℃ Related Links Species details: Thuridilla gracilis (Risbec, 1928) More from 吉川芳輝 More observations from this area Submit Photo Send Message Share Permanent URL: https://en.seaslug.world/observation/14370