Polycera

Polycera is a genus of sea slugs, specifically nudibranchs, shell-less marine gastropod molluscs in the family Polyceridae.

Polycera is the type genus of the family Polyceridae.

Species
Species in the genus Polycera include:
 * Polycera abei (Baba, 1960)
 * Polycera alabe Collier & Farmer, 1964
 * Polycera anae Pola, Sánchez-Benítez & Ramiro, 2014
 * Polycera atra MacFarland, 1905 orange-spike polycera
 * Polycera aurantiomarginata García-Gómez & Bobo, 1984
 * Polycera aurisula Er. Marcus, 1957
 * Polycera capensis Quoy & Gaimard, 1824
 * Polycera chilluna Er. Marcus, 1961
 * Polycera elegans (Bergh, 1894) alternate representation of Greilada elegans
 * Polycera faeroensis Lemche, 1929
 * Polycera fujitai Baba, 1937
 * Polycera hedgpethi Er. Marcus, 1964
 * Polycera herthae Ev. Marcus & Er. Marcus, 1963
 * Polycera hummi Abbott, 1952
 * Polycera janjukia Burn, 1962
 * Polycera japonica Baba, 1949
 * Polycera kaiserae Hermosillo & Valdés, 2007
 * Polycera maculata Pruvot-Fol, 1951
 * Polycera maddoxi Miller, 2005
 * Polycera manzanilloensis Ortea, Espinosa & Camacho, 1999
 * Polycera marplatensis Franceschi, 1928
 * Polycera melanosticta Miller, 1996
 * Polycera norvegica Sørensen, Rauch, Pola & Malaquias, 2020
 * Polycera odhneri Er. Marcus, 1955
 * Polycera parvula (Burn, 1958)
 * Polycera picta Risbec, 1928
 * Polycera priva Er. Marcus, 1959
 * Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera risbeci Odhner, 1941
 * Polycera rycia Er. Marcus & Ev. Marcus, 1970
 * Polycera sp. twin-crowned nudibranch
 * Polycera tricolor Robilliard, 1971 three-color polycera
 * Polycera xicoi Ortea & Rolán, 1989
 * Species brought into synonymy:
 * Polycera atlantica Pruvot-Fol, 1956: synonym of Polycera elegans (Bergh, 1894)
 * Polycera citrina Alder & Hancock, 1841: synonym of Palio dubia (M. Sars, 1829)
 * Polycera conspicua Allan, 1932: synonym of Polycera capensis Quoy & Gaimard, 1824
 * Polycera cooki Angas, 1864: synonym of Paliolla cooki (Angas, 1864)
 * Polycera cornigera Adams & Reeve in Adams, 1848: synonym of Ceratosoma trilobatum (J.E. Gray, 1827)
 * Polycera cristata Alder, 1841: synonym of Ancula gibbosa (Risso, 1818)
 * Polycera dubia M. Sars, 1829: synonym of Palio dubia (M. Sars, 1829)
 * Polycera gnupa Er. Marcus & Ev. Marcus, 1967: synonym of Polycera hedgpethi Er. Marcus, 1964
 * Polycera horrida Hesse, 1872: synonym of Aegires punctilucens (d'Orbigny, 1837)
 * Polycera incognita (Ortea, Espinosa & Caballer, 2005): synonym of Kankelibranchus incognitus Ortea, Espinosa & Caballer, 2005
 * Polycera lessoni d'Orbigny, 1837: synonym of Palio dubia (M. Sars, 1829)
 * Polycera lessonii d'Orbigny, 1837: synonym of Palio dubia (M. Sars, 1829)
 * Polycera lineatus Risso, 1826: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera mediterranea Bergh, 1879: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera messinensis Odhner, 1941: synonym of Polycera elegans (Bergh, 1894)
 * Polycera modesta Lovén, 1846: synonym of Palio dubia (M. Sars, 1829)
 * Polycera nigrocrocea Barnard, 1927: synonym of Polycera capensis Quoy & Gaimard, 1824
 * Polycera nigrolineata Dautzenberg & Durouchoux, 1913: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera nigropicta Ihering, 1885: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera nothus (Johnston, 1838): synonym of Palio nothus (Johnston, 1838)
 * Polycera ocellata Alder & Hancock, 1842: synonym of Palio nothus (Johnston, 1838)
 * Polycera ornata d'Orbigny, 1837: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera pudica Lovén, 1846: synonym of Palio dubia (M. Sars, 1829)
 * Polycera punctilucens d'Orbigny, 1837: synonym of Aegires punctilucens (d'Orbigny, 1837)
 * Polycera salamandra Labbé, 1931: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera tabescens Risbec, 1928: synonym of Tambja limaciformis (Eliot, 1908)
 * Polycera typica W. Thompson, 1840: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera varians M. Sars, 1840: synonym of Polycera quadrilineata (O. F. Müller, 1776)
 * Polycera webbi d'Orbigny, 1839: synonym of Felimare picta (Schultz in Philippi, 1836)
 * Polycera zeylanica Kelaart, 1858: synonym of Plocamopherus ceylonicus (Kelaart, 1858)
 * Polycera zosterae O’Donoghue, 1924: synonym of Palio dubia (M. Sars, 1829)
 * Nomine dubia
 * Polycera funerea Pruvot-Fol, 1930
 * Polycera pruvotae Risbec, 1953