• Caprella Guilding, 1824 accepted as Plekocheilus Guilding, 1827
• Caprella Lamarck, 1801
• Caprella acanthifera Leach, 1814
• Caprella acanthifera acanthifera Leach, 1814 represented as Caprella acanthifera Leach, 1814
• Caprella acanthifera discrepans Mayer, 1890
• Caprella acanthifera f. discrepans Mayer, 1890 accepted as Caprella acanthifera discrepans Mayer, 1890
• Caprella acanthifera ferox Carausu & Carausu, 1959 accepted as Caprella acanthifera Leach, 1814
• Caprella acanthifera humboldtiensis Martin, 1977
• Caprella acanthogaster Mayer, 1890
• Caprella acanthopoda Guiler, 1954
• Caprella acutifrons Latreille, 1816 accepted as Caprella penantis Leach, 1814
• Caprella acutifrons annobonensis Mateus & Mateus, 1986
• Caprella acutifrons f. porcellio Mayer, 1903 accepted as Caprella penantis Leach, 1814
• Caprella advena Vassilenko, 1974
• Caprella aequilibra Say, 1818 accepted as Caprella equilibra Say, 1818
• Caprella aino Utinomi, 1943
• Caprella alaskana Mayer, 1903
• Caprella alaskensis Holmes, 1904
• Caprella algaceus Vassilenko, 1967
• Caprella andreae Mayer, 1890
• Caprella angulosa Mayer, 1903
• Caprella angusta Mayer, 1903
• Caprella anomala Mayer, 1903 accepted as Metacaprella anomala (Mayer, 1903)
• Caprella arimotoi Takeuchi, 1993
• Caprella astericola Jankowski & Vassilenko, 1973
• Caprella bacilllus Mayer, 1903
• Caprella bathyalis Vassilenko, 1972
• Caprella bathytatos Martin & Pettit, 1998
• Caprella bermudia Kunkel, 1910
• Caprella bidentata Utinomi, 1947 accepted as Caprella monoceros Mayer, 1890
• Caprella bispinosa Mayer, 1903
• Caprella borealis Mayer, 1903
• Caprella brachiata Arimoto, 1978
• Caprella branchella Arimoto, 1978
• Caprella brevirostris Mayer, 1903
• Caprella calderoni Hendrickx & Ayón-Parente, 2014
• Caprella californica Stimpson, 1856
• Caprella calva Spence Bate, 1863 accepted as Caprella acanthifera Leach, 1814
• Caprella carina Mayer, 1903
• Caprella carinata Arimoto, 1934
• Caprella caulerpensis Guerra-García, Sánchez-Moyano & García-Gómez, 2002
• Caprella cavediniae Krapp-Schickel & Vader, 1998
• Caprella centrota Vassilenko, 1972
• Caprella ceutae Guerra-García & Takeuchi, 2002
• Caprella chelimana Mayer, 1903
• Caprella ciliata G.O. Sars, 1883
• Caprella cilluroantennata Arimoto, 1934
• Caprella circur Mayer, 1903
• Caprella clavigera Vassilenko, 1972
• Caprella concinna Mateus & Mateus, 1991
• Caprella constantina Mayer, 1903
• Caprella corallina Arimoto, 1980
• Caprella cornigera Haswell, 1879 accepted as Hircella cornigera (Haswell, 1879)
• Caprella cornuta Dana, 1853 accepted as Caprella scaura Templeton, 1836
• Caprella cornuta f. obtusirostris Dana, 1853 accepted as Caprella scaura Templeton, 1836
• Caprella corvina Mayer, 1903
• Caprella cristibrachium Mayer, 1903
• Caprella danilevskii Czerniavsky, 1868
• Caprella decipiens Mayer, 1890
• Caprella dentata Haller, 1880 accepted as Caprella liparotensis Haller, 1879
• Caprella dilatata Krøyer, 1843
• Caprella dissona Arimoto, 1979
• Caprella drepanochir Mayer, 1890
• Caprella dubia Hansen, 1887
• Caprella echinata Haswell, 1879 accepted as Paradeutella echinata (Haswell, 1879)
• Caprella edgari Guerra-García & Takeuchi, 2004
• Caprella equilibra Say, 1818
• Caprella equina Arimoto, 1978
• Caprella erethizon Mayer, 1901
• Caprella esmarckii Boeck, 1861 accepted as Caprella equilibra Say, 1818
• Caprella eurydactyla Vassilenko, 1974
• Caprella excelsa Vassilenko, 1974
• Caprella eximia Mayer, 1890
• Caprella extensimana Laubitz, 1995
• Caprella falsa Mayer, 1903
• Caprella ferox Czerniavsky, 1868 accepted as Caprella acanthifera Leach, 1814
• Caprella ferrea Mayer, 1903
• Caprella fimbriata Vassilenko, 1994
• Caprella fretensis Stebbing, 1878
• Caprella generosa Arimoto, 1977
• Caprella geometrica Say, 1818 accepted as Caprella penantis Leach, 1814
• Caprella gigantea Haller, 1880
• Caprella gigantochir Mayer, 1903
• Caprella glabra Aoki, 1991
• Caprella globiceps Dana, 1853
• Caprella gorgonia Laubitz & Lewbel, 1974
• Caprella gracilior Mayer, 1890
• Caprella gracilipes Grube, 1864
• Caprella gracillima Mayer, 1890
• Caprella grahami Wigley & Shave, 1966
• Caprella grandimana Mayer, 1882
• Caprella greenleyi McCain, 1969
• Caprella hakuhoae Takeuchi, Kihara & Matsumoto, 2019
• Caprella hirayamai Guerra-García & Takeuchi, 2003
• Caprella hirsuta Mayer, 1890
• Caprella horrida G.O. Sars, 1877 accepted as Metacaprella horrida (Sars G.O., 1877)
• Caprella hystrix Krøyer, 1843 accepted as Caprella acanthifera Leach, 1814
• Caprella imaii Utinomi, 1943
• Caprella incisa Mayer, 1903
• Caprella indeterminata Vassilenko, 1994