Costasiella formicaria (Baba, 1959) ♡ Like 0 Observation Details Photographer 畠中信喜 Location Japan > Wakayama Date 2023/12/30 Size 4mm Depth 1.0m Water temperature 18.0℃ Related Links Species details: Costasiella formicaria (Baba, 1959) More from 畠中信喜 More observations from this area Submit Photo Send Message Share Permanent URL: https://en.seaslug.world/observation/35416