Costasiella formicaria (Baba, 1959) ♡ Like 0 Observation Details Photographer Tomoe Location Japan > Shizuoka > Ita > Ita Beach Date 2018/03/17 Size 1mm Depth 20.0m Water temperature 14.0℃ Related Links Species details: Costasiella formicaria (Baba, 1959) More from Tomoe More observations from this area Submit Photo Send Message Share Permanent URL: https://en.seaslug.world/observation/8845