Tell us about the sea slugs & nudibranchs in your country! There are currently 36,458 photos posted with 1,910 registered species. Search for nudibranchs by color more Newly arrived nudibranchs more Trinchesiidae sp. 3 Sacoproteus nishae Krug, Wong, M. R. Medina, Gosliner & Á. Valdés, 2018 Trapania sp.19 Aglajidae sp. 9 Aglajidae sp. 8 Tambja spp. Discodorid sp.17 Martadoris sp. 2 Newly submitted photos more Stiliger aureomarginatus Jensen, 1993 Pteraeolidia semperi (Bergh, 1870) Dermatobranchus albopunctulatus Baba, 1976 Dermatobranchus ornatus (Bergh, 1874) Miamira flavicostata Baba, 1940 Thecacera pacifica Bergh, 1883 Gymnodoris impudica (Rüppell & Leuckart, 1828) Japonactaeon sieboldii (Reeve, 1842)