Tell us about the sea slugs & nudibranchs in your country! There are currently 36,602 photos posted with 1,911 registered species. Search for nudibranchs by color more Newly arrived nudibranchs more Goniobranchus sp. 8 Goniobranchus cf. variatus (Risbec, 1928) 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. Newly submitted photos more Sacoproteus smaragdinus (Baba, 1949) Bullina lineata (Gray, 1825) Thecacera sp.13 Bullina lineata (Gray, 1825) Marianina rosea (Pruvot - Fol, 1930) Verconia varians (Pease, 1871) Polycera hedgpethi Marcus, 1964 Halgerda tessellata (Bergh, 1880)