Subterclass Acteonimorpha Nudibranch Photos Status: All Spawning (9) Multiple (8) Period: All 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Micromelo barbarae 2026-02-15 Yukio Seki Sannoura Hydatina physis 2023-04-09 なお Shinhama Beach Micromelo barbarae 2023-05-16 Anouk Houben Anilao Micromelo guamensis 2026-07-08 中村一誠 Kaminato Aplustrum amplustre 2026-07-07 名谷朋浩 Kaminato Hydatina physis 2021-06-15 ウナポーン Arai Benten Beach Aplustrum amplustre 2019-08-04 ZhengMei Chungliao Port Aplustrum amplustre 2017-12-21 Mostly_Macro Temple Of Doom Pupa strigosa 2026-06-20 名谷朋浩 Wannai Bullina lineata 2026-04-29 新井 隆大(DSあらいぐま) Bare Island East Hydatina physis 2017-08-20 Xanth 82.5K Bullina lineata 2021-05-20 山下 実里( ザ・ダイブス ) Hamanako Hydatina physis 2023-03-14 山下 実里( ザ・ダイブス ) Hamanako Bullina lineata 2026-06-07 草壁香織 Makiminato Micromelo barbarae 2024-04-13 Tatsuya Miyake island Pupa strigosa 2026-06-06 kyoko fujimoto Tate Beach Hydatina physis 2017-07-09 Xanth 82.5K Bullina lineata 2025-03-30 Tatsuya Izu Oceanic Park Hydatina physis 2026-06-06 Nono3 Omiya shita Micromelo guamensis 2026-05-31 KAITO UEMURA 1no ne Hydatina zonata 2021-01-31 山下 実里( ザ・ダイブス ) Hamanako Micromelo barbarae 2026-03-07 Mostly_Macro Banya Japonactaeon nipponensis 2026-05-25 天草よかよかダイビング 中野 誠志 Sirato kaisuiyokuzyou Japonactaeon nipponensis 2026-05-25 天草よかよかダイビング 中野 誠志 Sirato kaisuiyokuzyou Pupa strigosa 2026-05-16 Mizu Tate Beach Pupa strigosa 2026-05-21 名谷朋浩 Kajinohama Pupa strigosa 2026-05-21 名谷朋浩 Kajinohama Punctacteon amakusaensis 2026-05-17 天草よかよかダイビング 中野 誠志 Simono kura Japonactaeon sp. 1 2026-05-16 Mizu Tate Beach Hydatina physis 2026-05-13 Sea slug Explorer @徳之島 Senma Dragon Hole Aplustrum amplustre 2026-01-03 KAITO UEMURA Kaminato Hydatina zonata 2025-03-22 KAITO UEMURA Okuridashino irie Micromelo barbarae 2026-05-05 大場健一郎 Wall Cave Pupa strigosa 2026-05-10 名谷朋浩 Wannai Micromelo guamensis 2022-04-30 大場健一郎 Maouno kyuuden Hydatina physis 2026-03-08 KAITO UEMURA Okuridashino irie Micromelo barbarae 2026-03-21 KAITO UEMURA Yaene Japonactaeon sp. 1 2026-05-06 kyoko fujimoto Tate Beach Bullina lineata 2026-05-06 KAITO UEMURA 1.5 banno ne Micromelo barbarae 2026-05-01 大場健一郎 Maouno kyuuden Show more (396 remaining) →