• Abyla bicarinata Moser, 1925: macroplankton
• Abyla haeckeli Lens & van Riemsdijk, 1908: macroplankton
• Abyla trigona Quoy & Gaimard, 1827: macroplankton
• Abylopsis eschscholtzii (Huxley, 1859): macroplankton
• Abylopsis tetragona (Otto, 1823): macroplankton
• Acanthephyra acutifrons Spence Bate, 1888: macroplankton
• Acanthephyra armata A. Milne-Edwards, 1881: macroplankton
• Acanthephyra brevicarinata Hanamura, 1984: macroplankton
• Acanthephyra brevirostris Smith, 1885: macroplankton
• Acanthephyra carinata Spence Bate, 1888: macroplankton
• Acanthephyra chacei Krygier & Forss, 1981: macroplankton
• Acanthephyra cucullata Faxon, 1893: macroplankton
• Acanthephyra curtirostris Wood-Mason in Wood-Mason & Alcock, 1891: macroplankton
• Acanthephyra faxoni Calman, 1939: macroplankton
• Acanthephyra fimbriata Alcock & Anderson, 1894: macroplankton
• Acanthephyra heatheri Vereshchaka, Kulagin & Lunina, 2022: macroplankton
• Acanthephyra indica Balss, 1925: macroplankton
• Acanthephyra kingsleyi Spence Bate, 1888: macroplankton
• Acanthephyra media Spence Bate, 1888: macroplankton
• Acanthephyra pelagica (Risso, 1816): macroplankton
• Acanthephyra prionota Foxton, 1971: macroplankton
• Acanthephyra purpurea A. Milne-Edwards, 1881: macroplankton
• Acanthephyra quadrispinosa Kemp, 1939: macroplankton
• Acanthephyra rostrata (Spence Bate, 1888): macroplankton
• Acanthephyra sanguinea Wood-Mason in Wood-Mason & Alcock, 1892: macroplankton
• Acanthephyra sibogae De Man, 1916: macroplankton
• Acanthephyra smithi Kemp, 1939: macroplankton
• Acanthephyra stylorostratis (Spence Bate, 1888): macroplankton
• Acanthephyra tenuipes (Spence Bate, 1888): macroplankton
• Acanthephyra trispinosa Kemp, 1939: macroplankton
• Acartia (Acanthacartia) tumida Willey, 1920: macroplankton
• Acartia (Acartia) forcipata Thompson I.C. & Scott A., in : Herdman, Thompson & Scott, 1897: macroplankton
• Acetes americanus Ortmann, 1893: macroplankton
• Acetes binghami Burkenroad, 1934: macroplankton
• Acetes chinensis Hansen, 1919: macroplankton
• Acetes erythraeus Nobili, 1906: macroplankton
• Acetes indicus H. Milne Edwards, 1830: macroplankton
• Acetes intermedius Omori, 1975: macroplankton
• Acetes japonicus Kishinouye, 1905: macroplankton
• Acetes johni Nataraj, 1949: macroplankton
• Acetes maratayama Bochini, Costa & Mantelatto, 2024: macroplankton
• Acetes marinus Omori, 1975: macroplankton
• Acetes natalensis Barnard, 1955: macroplankton
• Acetes omorii Hanamura, Imai & Hardianto in Hanamura, Hardianto, Fukuchi, Imai, Siow, Kanak, Islam, Tsutsui, Kassim, 2024: macroplankton
• Acetes paraguayensis Hansen, 1919: macroplankton
• Acetes serrulatus (Krøyer, 1859): macroplankton
• Acetes sibogae Hansen, 1919: macroplankton
• Acetes spiniger Hansen, 1919: macroplankton
• Acetes vulgaris Hansen, 1919: macroplankton
• Aegina citrea Eschscholtz, 1829: macroplankton
• Aegina rosea Eschscholtz, 1829: macroplankton
• Aeginona brunnea (Vanhöffen, 1908): macroplankton
• Aeginopsis laurentii Brandt, 1838: macroplankton
• Aeginura beebei Bigelow, 1940: macroplankton
• Aeginura grimaldii Maas, 1904: macroplankton
• Aetideopsis albatrossae Shih & Maclellan, 1981: macroplankton
• Aetideopsis antarctica (Wolfenden, 1908): macroplankton
• Aetideopsis armata (Boeck, 1873): macroplankton
• Aetideopsis browsei McKinnon, Corley & Duggan, 2011: macroplankton
• Aetideopsis carinata Bradford, 1969: macroplankton
• Aetideopsis cristata Tanaka, 1957: macroplankton
• Aetideopsis minor (Wolfenden, 1911): macroplankton
• Aetideopsis multiserrata (Wolfenden, 1904): macroplankton
• Aetideopsis retusa Grice & Hulsemann, 1967: macroplankton
• Aetideopsis rhinoceros McKinnon, Corley & Duggan, 2011: macroplankton
• Aetideopsis rostrata Sars G.O., 1903: macroplankton
• Aetideopsis tumorosa Bradford, 1969: macroplankton
• Aetideus acutus Farran, 1929: macroplankton
• Aetideus arcuatus (Vervoort, 1949): macroplankton
• Aetideus armatus (Boeck, 1873): macroplankton
• Aetideus australis (Vervoort, 1957): macroplankton
• Aetideus giesbrechti Cleve, 1904: macroplankton
• Aetideus mediterraneus Steuer, 1910: macroplankton
• Aetideus pacificus Brodsky, 1950: macroplankton
• Agalma clausi Bedot, 1888: macroplankton
• Agalma okenii Eschscholtz, 1825: macroplankton
• Aidanosagitta alvarinoae (Pathansali, 1974): macroplankton
• Aidanosagitta bedfordii (Doncaster, 1902): macroplankton
• Aidanosagitta crassa (Tokioka, 1938): macroplankton
• Aidanosagitta delicata (Tokioka, 1939): macroplankton
• Aidanosagitta demipenna (Tokioka & Pathansali, 1963): macroplankton
• Aidanosagitta erythraea (Casanova, 1985): macroplankton
• Aidanosagitta guileri (Taw, 1974): macroplankton
• Aidanosagitta johorensis (Pathansali & Tokioka, 1963): macroplankton
• Aidanosagitta meenakshiae (Nair, Panampunnayil, Pillai & Gireesh, 2008): macroplankton
• Aidanosagitta nairi (Casanova & Nair, 2002): macroplankton
• Aidanosagitta neglecta (Aida, 1897): macroplankton
• Aidanosagitta oceania (Grey, 1930): macroplankton
• Aidanosagitta ophicephala (Pathansali, 1974): macroplankton
• Aidanosagitta regularis (Aida, 1897): macroplankton
• Aidanosagitta septata (Doncaster, 1903): macroplankton
• Aidanosagitta tropica (Tokioka, 1942): macroplankton
• Alainopasiphaea australis (Hanamura, 1989): macroplankton
• Alainopasiphaea nudipeda (Burukovsky, 1993): macroplankton
• Alexandronemertes ductor Chernyshev, 1992: macroplankton
• Alexandronemertes mollis (Coe, 1926): macroplankton
• Aliaporcellana kikuchii Nakasone & Miyake, 1969: macroplankton
• Aliaporcellana pygmaea (De Man, 1902): macroplankton
• Aliaporcellana spongicola Hiller & Werding, 2018: macroplankton
• Aliaporcellana suluensis (Dana, 1852): macroplankton