Subfamily Polycerinae Nudibranch Photos Status: All Mating (26) Spawning (13) Feeding (42) Deformity (2) Multiple (48) Period: All 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 Thecacera sp. 7 2020-08-14 Xanth 82.5K Thecacera pacifica 2020-09-14 Xanth 82.5K Polycera sp. 1 2021-10-16 Xanth 82.5K Thecacera sp.12 2021-09-06 Xanth 82.5K Thecacera pacifica 2021-08-29 Xanth 82.5K Thecacera pacifica 2022-07-23 Xanth 82.5K Gymnodoris alba 2026-05-10 新井 隆大(DSあらいぐま) Shibazaki Coast Gymnodoris sp. 1 2021-11-25 Xanth Goukai Gymnodoris alba 2026-05-24 山下 実里( ザ・ダイブス ) Hamanako Thecacera picta 2023-09-23 Xanth 82.5K Thecacera sp. 7 2023-07-21 Xanth 82.5K Thecacera sesama 2023-07-22 Xanth 82.5K Polycera sp. 4 2021-01-26 山下 実里( ザ・ダイブス ) Hamanako Palio amakusana 2025-03-06 山下 実里( ザ・ダイブス ) Hamanako Thecacera sp.12 2026-03-11 Mostly_Macro Seisui Thecacera sp. 7 2023-07-01 Xanth 82.5K Thecacera pacifica 2025-10-30 志水 舞美 Minna Island Gymnodoris impudica 2026-05-28 志水 舞美 Relax garden / Petit fish Thecacera sp.12 2026-03-11 Mostly_Macro Seisui Thecacera picta 2026-03-11 Mostly_Macro Seisui Gymnodoris sp.22 2023-05-19 Xanth Goukai Polycera sp.15 2023-03-29 Xanth Goukai Thecacera sesama 2018-09-08 Xanth 82.5K Polycera melanosticta 2019-07-18 Xanth 82.5K Polycera melanosticta 2020-07-13 Xanth 82.5K Gymnodoris sp. 1 2021-11-15 Xanth Goukai Thecacera picta 2021-03-25 Xanth Goukai Gymnodoris impudica 2022-03-13 Xanth Goukai Thecacera sp.16 2018-09-23 Xanth 82.5K Thecacera sp.16 2018-09-08 Xanth 82.5K Thecacera sp.16 2018-09-01 Xanth 82.5K Gymnodoris sp.33 2026-05-30 Go Kobaton Soft Coral Gymnodoris ceylonica 2026-05-30 Go Kobaton Soft Coral Thecacera picta 2025-08-23 Xanth 82.5K Polycera risbeci 2025-08-10 Xanth 82.5K Thecacera sp. 7 2025-08-10 Xanth 82.5K Polycera abei 2024-04-13 KAITO UEMURA Wannai Thecacera picta 2025-04-18 Xanth Goukai Thecacera pacifica 2025-08-23 Xanth 82.5K Gymnodoris sp. 7 2026-04-18 MANATEE Hatoma South hutu hotokesama Show more (2,469 remaining) →