• Abormon capillosum Mitra, Pati & Ng, 2021
• Abormon praecalvum Mitra, Pati & Ng, 2021
• Abortelphusa namdaphaensis Mitra, 2020
• Abrote spinimana Philippi, 1857 accepted as Blepharipoda spinosa (H. Milne Edwards & Lucas, 1841)
• Abyssophthalmus adinae Schweitzer, Feldmann, Lazăr, Schweigert & Franţescu, 2018 †
• Abyssophthalmus bellaii (Crônier & Bouriscot, 2009) †
• Abyssophthalmus dzhafarberdensis (Ilyin, 2005) †
• Abyssophthalmus hebes (von Meyer, 1840) †
• Abyssophthalmus mainense (Crônier & Bouriscot, 2009) †
• Abyssophthalmus mirus (Möricke, 1889) †
• Abyssophthalmus schultzi Schweitzer & Feldmann, 2009 †
• Abyssophthalmus spinosus (von Meyer, 1842) †
• Abyssophthalmus stotzingense (von Meyer, 1860) †
• Abyssotheres abyssicola (Alcock & Anderson, 1899)
• Abyssotheres acesticola Komatsu & Ohtsuka, 2009
• Acanthacaris caeca (A. Milne-Edwards, 1881)
• Acanthacaris opipara Burukovsky & Musij, 1976 accepted as Acanthacaris tenuimana Spence Bate, 1888
• Acanthacaris tenuimana Spence Bate, 1888
• Acanthanas pusillus Anker, Poddoubtchenko & Jeng, 2006
• Acantharctus delfini (Bouvier, 1909)
• Acantharctus ornatus (Holthuis, 1960)
• Acantharctus posteli (Forest, 1963)
• Acanthaxius caespitosa (Squires, 1979) accepted as Guyanacaris caespitosa (Squires, 1979)
• Acanthaxius carinatus Franţescu, 2014 †
• Acanthaxius clevai Ngoc-Ho, 2006 accepted as Pillsburyaxius clevai (Ngoc-Ho, 2006)
• Acanthaxius formosa Kensley & Chan, 1998
• Acanthaxius gadaletae Ngoc-Ho, 2006 accepted as Pillsburyaxius gadaletae (Ngoc-Ho, 2006)
• Acanthaxius garawa Poore & Collins, 2009
• Acanthaxius gathaagudu Poore & Collins, 2009
• Acanthaxius gotoensis Sakai, 2014 accepted as Pillsburyaxius gotoensis (Sakai, 2014)
• Acanthaxius grandis Kensley & Chan, 1998
• Acanthaxius kashimaensis Sakai, 2017
• Acanthaxius kirkmilleri Kensley, 1996 accepted as Pillsburyaxius kirkmilleri (Kensley, 1996)
• Acanthaxius miyazakiensis (Yokoya, 1933)
• Acanthaxius ningaloo Poore & Collins, 2009
• Acanthaxius pilocheirus (Sakai, 1987)
• Acanthaxius polyacanthus (Miyake & Sakai, 1967)
• Acanthaxius polychaetes Sakai, 1994 accepted as Guyanacaris polychaetes (Sakai, 1994)
• Acanthaxius pseudopolyacanthus Sakai, 2017 (unaccepted > nomen nudum)
• Acanthaxius sapulo Poore, 2020
• Acanthaxius spinosissimus (Rathbun, 1906) accepted as Guyanacaris spinosissima (Rathbun, 1906)
• Acanthephyra (Meningodora) sibogae De Man, 1916 accepted as Acanthephyra sibogae De Man, 1916
• Acanthephyra abyssorum Filhol, 1885 accepted as Acanthephyra purpurea A. Milne-Edwards, 1881
• Acanthephyra acanthitelsonis Spence Bate, 1888 accepted as Acanthephyra pelagica (Risso, 1816)
• Acanthephyra acutifrons Spence Bate, 1888
• Acanthephyra affinis Faxon, 1896 accepted as Systellaspis pellucida (Filhol, 1884)
• Acanthephyra agassizzi Smith, 1884 accepted as Acanthephyra pelagica (Risso, 1816)
• Acanthephyra agassizzi mediterranea Riggio, 1900 accepted as Acanthephyra pelagica (Risso, 1816)
• Acanthephyra angusta Spence Bate, 1888 accepted as Acanthephyra eximia Smith, 1884
• Acanthephyra anomala Boone, 1927 accepted as Janicella spinicauda (A. Milne-Edwards, 1883)
• Acanthephyra antarctica Bage, 1938 accepted as Nematocarcinus lanceopes Spence Bate, 1888
• Acanthephyra approxima Spence Bate, 1888 accepted as Acanthephyra carinata Spence Bate, 1888
• Acanthephyra armata A. Milne-Edwards, 1881
• Acanthephyra armata var. fimbriata Alcock & Anderson, 1894 accepted as Acanthephyra fimbriata Alcock & Anderson, 1894
• Acanthephyra batei Faxon, 1895 accepted as Meningodora vesca (Smith, 1886)
• Acanthephyra batei Stebbing, 1905 accepted as Acanthephyra quadrispinosa Kemp, 1939
• Acanthephyra brachytelsonis Spence Bate, 1888 accepted as Acanthephyra eximia Smith, 1884
• Acanthephyra braueri Balss, 1914 accepted as Bralaspis braueri (Balss, 1914)
• Acanthephyra brevicarinata Hanamura, 1984
• Acanthephyra brevirostris Smith, 1885
• Acanthephyra brevirostris Spence Bate, 1888 accepted as Meningodora vesca (Smith, 1886)
• Acanthephyra carinata Spence Bate, 1888
• Acanthephyra chacei Krygier & Forss, 1981
• Acanthephyra cristata Faxon, 1893 accepted as Cristaspis cristata (Faxon, 1893)
• Acanthephyra cucullata Faxon, 1893
• Acanthephyra curtirostris Wood-Mason in Wood-Mason & Alcock, 1891
• Acanthephyra debilis A. Milne-Edwards, 1881 accepted as Debaspis debilis (A. Milne-Edwards, 1881)
• Acanthephyra debilis var. europaea A. Milne-Edwards, 1883 accepted as Systellaspis debilis (A. Milne-Edwards, 1881) accepted as Debaspis debilis (A. Milne-Edwards, 1881)
• Acanthephyra edwardsii Spence Bate, 1888 accepted as Acanthephyra eximia Smith, 1884
• Acanthephyra ensis A. Milne-Edwards, 1881 accepted as Plesionika ensis (A. Milne-Edwards, 1881)
• Acanthephyra eximia Smith, 1884
• Acanthephyra faxoni Calman, 1939
• Acanthephyra fimbriata Alcock & Anderson, 1894
• Acanthephyra frontieri Crosnier, 1988 accepted as Acanthephyra eximia Smith, 1884
• Acanthephyra gracilipes Chace, 1940 accepted as Acanthephyra tenuipes (Spence Bate, 1888)
• Acanthephyra heatheri Vereshchaka, Kulagin & Lunina, 2022
• Acanthephyra indica Balss, 1925
• Acanthephyra kempii Balss, 1914 accepted as Acanthephyra sanguinea Wood-Mason in Wood-Mason & Alcock, 1892
• Acanthephyra kingsleyi Spence Bate, 1888
• Acanthephyra longidens Spence Bate, 1888 accepted as Heterogenys microphthalma (Smith, 1885)
• Acanthephyra media Spence Bate, 1888
• Acanthephyra media var. obliquirostris De Man, 1916 accepted as Acanthephyra media Spence Bate, 1888
• Acanthephyra microphthalma Smith, 1885 accepted as Heterogenys microphthalma (Smith, 1885)
• Acanthephyra parva Coutière, 1905 (uncertain > nomen dubium)
• Acanthephyra parva multidens Coutière, 1905 accepted as Acanthephyra pelagica (Risso, 1816)
• Acanthephyra parva paucidens Coutière, 1905 accepted as Acanthephyra purpurea A. Milne-Edwards, 1881
• Acanthephyra parvirostris Coutière, 1911 accepted as Meningodora vesca (Smith, 1886)
• Acanthephyra pelagica (Risso, 1816)
• Acanthephyra pellucida Filhol, 1884 accepted as Systellaspis pellucida (Filhol, 1884)
• Acanthephyra pleuracantha Coutière, 1914 (unaccepted > nomen nudum)
• Acanthephyra prionota Foxton, 1971
• Acanthephyra pulchra A. Milne-Edwards, 1890 accepted as Acanthephyra eximia Smith, 1884
• Acanthephyra purpurea A. Milne-Edwards, 1881
• Acanthephyra purpurea var. multispina Coutière, 1905 accepted as Acanthephyra pelagica (Risso, 1816)
• Acanthephyra quadrispinosa Kemp, 1939
• Acanthephyra rectirostris Riggio, 1900 accepted as Acanthephyra pelagica (Risso, 1816)
• Acanthephyra rostrata (Spence Bate, 1888)
• Acanthephyra sanguinea Wood-Mason in Wood-Mason & Alcock, 1892
• Acanthephyra sexspinosa Kemp, 1939 accepted as Acanthephyra kingsleyi Spence Bate, 1888
• Acanthephyra sibogae De Man, 1916