Idunella is a genus of crustaceans in family Liljeborgiidae. It contains 48 species: Idunella aequicornis (G.O. Sars, 1877) Idunella albina (J.L. Barnard, 1959) Idunella andresi (Martin, Ortiz & Atienza, 2000) Idunella bacheleti Gouillieux, Bonifacio & Lavesque, 2020 Idunella bahia (McKinney, 1979) Idunella barnardi (Wigley, 1966) Idunella bowenae G. Karaman, 1979 Idunella brevicornis (Ledoyer, 1973) Idunella carinata (McKinney, 1979) Idunella chilkensis Chilton, 1921 Idunella clymenellae (Mills, 1962) Idunella curvidactyla Nagata, 1965 Idunella dahli Schellenberg, 1938 Idunella demersalis (Sivaprakasam, 1972) Idunella dentipalma (Duavin & Gentil, 1983) Idunella diffusa (J.L. Barnard, 1959) Idunella eriopisa (J.L. Barnard, 1959) Idunella excavata (Schiecke, 1973) Idunella goleta (J.L. Barnard, 1959) Idunella janisae Imbach, 1967 Idunella kensleyi (Ortiz & Lalana, 1996) Idunella lindae (Griffiths, 1974) Idunella longipalma (Othman & Morino, 2006) Idunella longipalmata (Ren, 2012) Idunella melanica (J.L. Barnard, 1959) Idunella mollis (Myers & McGrath, 1983) Idunella nagatai G. Karaman, 1979 Idunella nana (Schiecke, 1973) Idunella orientalis (Hirayama, 1985) Idunella pauli Imbach, 1967 Idunella pirata Krapp-Schickel, 1975 Idunella quintana (McKinney, 1979) Idunella robustoflagellata (Ren, 2012) Idunella saldanha (Griffiths, 1975). Idunella serra Imbach, 1967 Idunella similis (Rabindranath, 1971) Idunella sinuosa (Griffiths, 1974) Idunella sketi Karaman, 1980 Idunella smithi Lazo-Wasem, 1985 Idunella spinifera (Dauvin & Gentil, 1983) Idunella titinga (Wakabara, Tamaram, Valério-Berardi & Leite, 1988) Idunella tuberculata (Dang & Le, 2012) Idunella verrilli Yabut & Sawicki, 2015
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