• Abyssicaprella galatheae McCain, 1966
• Abyssododecas styx Takeuchi, Tomikawa & Lindsay, 2016
• Aciconula acanthosoma Chess, 1989
• Aciconula australiensis Guerra-Garcia, 2004
• Aciconula miranda Mayer, 1903
• Aciconula tinggiensis Lim, Azman & Othman, 2019
• Aciconula tridentata Guedes-Silva & Souza-Filho, 2013
• Aegina capillacea Chevreux, 1888 accepted as Parvipalpus capillaceus (Chevreux, 1888)
• Aegina longicornis Krøyer, 1843 accepted as Aeginina longicornis (Krøyer, 1843)
• Aegina longispina Krøyer, 1845 accepted as Pseudoprotella phasma (Montagu, 1804)
• Aegina tenella Dana, 1853 accepted as Caprella tenella (Dana, 1853)
• Aeginella corallina Zettler, Freiwald & Guerra-García, 2018
• Aeginella longicornis (Krøyer, 1843) accepted as Aeginina longicornis (Krøyer, 1843)
• Aeginella spinosa Boeck, 1861
• Aeginella tristanensis Stebbing, 1888 accepted as Pseudaeginella tristanensis (Stebbing, 1888)
• Aeginellopsis arabica Arimoto, 1970
• Aeginina aenigmatica Laubitz, 1972
• Aeginina echinata (Boeck) accepted as Aeginina longicornis (Krøyer, 1843)
• Aeginina laevis (Boeck, 1861) accepted as Aeginina longicornis (Krøyer, 1843)
• Aeginina longicornis (Krøyer, 1843)
• Aeginina spinosissima (Stimpson, 1853) accepted as Aeginina longicornis (Krøyer, 1843)
• Aeginoides gaussi Schellenberg, 1926
• Balaenocyamus balaenopterae (K.H. Barnard, 1931)
• Borikenella spinosa Guerra-García, Chatterjee & Schizas, 2015
• 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 sensu 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 Kundel, 1910
• Caprella bidentata Utinomi, 1947
• 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 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 Czerniavski, 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, 1880 accepted as Paradeutella echinata (Haswell, 1880)
• 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 ferrea Mayer, 1903
• Caprella fimbriata Vassilenko, 1994
• Caprella fretensis Stebbing, 1878
• Caprella generosa Arimoto, 1977