| Genus | Acanthaxius
Sakai & de Saint Laurent, 1989
| 26 | Species |
| Genus | Albatrossaxius
Sakai, 2011
| 0 | Species |
| Genus | Alienaxiopsis
Sakai, 2011
| 2 | Species |
| Genus | Allaxiopsis
Sakai, 2011
| 3 | Species |
| Genus | Allaxius
Sakai and de Saint Laurent, 1989
| 10 | Species |
| Genus | Amakusaxius
Sakai, 2011
| 1 | Species |
| Genus | Ambiaxiopsis
Komai, 2011
| 1 | Species |
| Genus | Ambiaxius
K. Sakai & de Saint Laurent, 1989
| 11 | Species |
| Genus | Anomalaxius ♰
Sakai & Türkay, 2012 ⇒ Axianassa
| 1 | Species |
| Genus | Anophthalmaxius
De Man, 1905
| 2 | Species |
| Genus | Aperiopyxis ♰
Schweigert, 2009
| 1 | Species |
| Genus | Aptaxiopsis
Ferratges, Hyžný & Zamora, 2021
| 1 | Species |
| Genus | Aura
Münster, 1839
| 2 | Species |
| Genus | Australocaris
Poore & Collins, 2009
| 1 | Species |
| Genus | Axia
Leach, 1816
| 1 | Species |
| Genus | Axiopsis
Borradaile, 1903
| 43 | Species |
| Genus | Axiorygma
Kensley and Simmons, 1988
| 1 | Species |
| Genus | Axius
Leach, 1815
| 59 | Species |
| Genus | Balssaxius
Sakai, 2011
| 1 | Species |
| Genus | Bathyaxius
Sakai, 2014
| 1 | Species |
| Genus | Boasaxius
Sakai, 2011
| 1 | Species |
| Genus | Bouvieraxius
Sakai and de Saint Laurent, 1989
| 5 | Species |
| Genus | Briancaris
Sakai & Ohta, 2005 ⇒ Ambiaxius
| 3 | Species |
| Genus | Bruceaxius
Sakai, 2011
| 2 | Species |
| Genus | Calastacus
Faxon, 1893
| 22 | Species |
| Genus | Calaxidium
Sakai, 2014 ⇒ Calaxius
| 0 | Species |
| Genus | Calaxiopsis
Sakai and de Saint Laurent, 1989
| 5 | Species |
| Genus | Calaxius
Sakai and de Saint Laurent, 1989
| 19 | Species |
| Genus | Callistocaris
Kensley, 1989
| 0 | Species |
| Genus | Calocarides
Wollebaek, 1908
| 21 | Species |
| Genus | Calocaris
Bell, 1853
| 20 | Species |
| Genus | Calocarisopsis
Sakai, 2011
| 2 | Species |
| Genus | Carolinaxius
Kou, Poore & Li, 2021
| 1 | Species |
| Genus | Coelhocalaxius
Sakai, 2011
| 1 | Species |
| Genus | Colemanaxius
Sakai, 2011
| 1 | Species |
| Genus | Coralaxus
| 1 | Species |
| Genus | Cretaxiopsis ♰
Charbonnier, Audo, Garassino & Hy?ný, 2017
| 1 | Species |
| Genus | Devonoaxius
Feldmann & Schweitzer, 2019
| 1 | Species |
| Genus | Dorphinaxius
Sakai & de Saint Laurent, 1989
| 2 | Species |
| Genus | Eiconaxiopsis
Sakai, 2011 ⇒ Eiconaxius
| 1 | Species |
| Genus | Eiconaxius
Bate, 1888
| 56 | Species |
| Genus | Etallonia ♰
Oppel, 1861
| 5 | Species |
| Genus | Eucalastacus
Sakai, 1992
| 1 | Species |
| Genus | Euconaxius
Trybom, 1904 ⇒ Eiconaxius
| 2 | Species |
| Genus | Eutrichocheles
Wood Mason, 1876
| 8 | Species |
| Genus | Evaxius
Kingsley, 1882
| 1 | Species |
| Genus | Formosaxius
To. Komai & T.Y. Chan, 2010
| 1 | Species |
| Genus | Guyanacaris
Sakai, 2011
| 7 | Species |
| Genus | Heterocalaxius
Sakai, 2011
| 0 | Species |
| Genus | Hinecaris
Karasawa, Kishimoto, Ohara & Ando, 2019
| 1 | Species |
| Genus | Huxleycaris ♰
Bravi & Garassino, 1998
| 1 | Species |
| Genus | Hydrorgon ♰
Gistl, 1848 ⇒ Magila
| 0 | Species |
| Genus | Iconaxiopsis
Alcock, 1901 ⇒ Eiconaxius
| 5 | Species |
| Genus | Leonardsaxius
Sakai, 2011
| 3 | Species |
| Genus | Levantocaris
Galil & Clark, 1993
| 1 | Species |
| Genus | Libanoaxius ♰
Charbonnier, Audo, Garassino & Hy?ný, 2017
| 1 | Species |
| Genus | Litoraxius
Komai & Tachikawa, 2007
| 1 | Species |
| Genus | Lophaxiopsis
Sakai, 2011
| 1 | Species |
| Genus | Lophaxius
Kensley, 1989
| 3 | Species |
| Genus | Magila ♰
Münster, 1839
| 17 | Species |
| Genus | Manaxius
Kensley, 2003 ⇒ Calaxius
| 21 | Species |
| Genus | Marianaxius
Kensley, 1996
| 1 | Species |
| Genus | Megachela ♰
Schweigert, 2003
| 1 | Species |
| Genus | Meinertaxius
Sakai, 2011
| 0 | Species |
| Genus | Michelaxiopsis
Poore & Collins, 2009
| 2 | Species |
| Genus | Montanaxius
Dworschak, 2016
| 2 | Species |
| Genus | Mugilla ♰
Gistl, 1848 ⇒ Magila
| 0 | Species |
| Genus | Neoaxius
Sakai, 2017 ⇒ Guyanacaris
| 1 | Species |
| Genus | Newzealandaxius
Sakai, 2011
| 0 | Species |
| Genus | Nipponcalaxiopsis
Sakai, 2011
| 1 | Species |
| Genus | Oxiopsis
| 1 | Species |
| Genus | Oxyrhynchaxius
Parisi, 1917
| 4 | Species |
| Genus | Palaeoaxius
| 1 | Species |
| Genus | Paracalocaris
Sakai, 1991 ⇒ Lophaxius
| 1 | Species |
| Genus | Parascytoleptus
Sakai and de Saint Laurent, 1989
| 2 | Species |
| Genus | Paratrichocheles
Sakai, 2011
| 2 | Species |
| Genus | Paraxiopsis
De Man, 1905
| 23 | Species |
| Genus | Paraxius
Bate, 1888
| 4 | Species |
| Genus | Pilbaraxius
Poore & Collins, 2009
| 1 | Species |
| Genus | Pillsburyaxius
Sakai, 2011
| 5 | Species |
| Genus | Planaxius
Komai & Tachikawa, 2008
| 1 | Species |
| Genus | Platyaxiopsis
Sakai, 2011
| 0 | Species |
| Genus | Platyaxius
Sakai, 1994
| 3 | Species |
| Genus | Plioaxius ♰
Fraaije, Van Bakel, Jagt & Mollen, 2011
| 2 | Species |
| Genus | Posthonocaris
Kensley, 1989
| 0 | Species |
| Genus | Protaxius ♰
Beurlen, 1930
| 6 | Species |
| Genus | Pseudoaxiopsis
Sakai, 2011
| 1 | Species |
| Genus | Ralumcaris
Sakai, 2011
| 1 | Species |
| Genus | Sakaiocaris
Kensley, 1989 ⇒ Spongiaxius
| 0 | Species |
| Genus | Schlueteria ♰
Fritsch & Kafka, 1887
| 5 | Species |
| Genus | Schluteria ♰
Fritsch in Fritsch & Kafka, 1887 ⇒ Schlueteria
| 2 | Species |
| Genus | Schlüteria ♰
Fritsch in Fritsch & Kafka, 1887 ⇒ Schlueteria
| 0 | Species |
| Genus | Scytoleptus
Gerstaecker, 1856
| 2 | Species |
| Genus | Spongiaxius
Sakai and de Saint Laurent, 1989
| 16 | Species |
