All Sea Slug & Nudibranch Species 544 Color: Sort Taxonomically Sort Alphabetically Hypselodoris imperialis (Pease, 1860) Hypselodoris infucata (Rüppell & Leuckart, 1830) Hypselodoris insulana Gosliner & R. F. Johnson, 1999 Hypselodoris krakatoa Gosliner & R. F. Johnson, 1999 Hypselodoris maritima (Baba, 1949) Hypselodoris nigrostriata (Eliot, 1904) Hypselodoris placida (Baba, 1949) Hypselodoris reidi Gosliner & R. F. Johnson, 1999 Hypselodoris roo Gosliner & R. F. Johnson, 2018 Hypselodoris rudmani Gosliner & R. F. Johnson, 1999 Hypselodoris zephyra Gosliner & R. F. Johnson, 1999 Actinocyclus papillatus (Bergh, 1878) Actinocyclus verrucosus Ehrenberg, 1831 Hallaxa fuscescens (Pease, 1871) Hallaxa hileenae Gosliner & S. Johnson, 1994 Hallaxa iju Gosliner & S. Johnson, 1994 Hallaxa paulinae Gosliner & S. Johnson, 1994 Aldisa albatrossae Elwood, Á. Valdés & Gosliner, 2000 Aldisa cooperi Robilliard & Baba, 1972 Aldisa erwinkoehleri Perrone, 2001 Aldisa fragaria Tibiriça, Pola & Cervera, 2017 Aldisa williamsi Elwood, Á. Valdés & Gosliner, 2000 Polycerinae sp. 1 Gymnodoris inariensis Hamatani & Osumi, 2004 Gymnodoris sp. 9 Gymnodoris suggens (Risbec, 1928) Gymnodoris boussionae De Souza-Canal, R. Nakano & Á. Valdés, 2025 Gymnodoris nagoensis De Souza-Canal, R. Nakano & Á. Valdés, 2025 Gymnodoris nigricolor Baba, 1960 Polycera abei (Baba, 1960) «2345678» See all posts