Senticaudata is one of the six suborders of the crustacean order Amphipoda (the group of scuds or sideswimmers). It includes some 6000 species, which is more than 50% of the currently recognized amphipod diversity.Horton, T. et al. World Amphipoda Database Introduction (read 23 April 2025)
Senticaudata was split off from the traditional suborder Gammaridea by James K. Lowry and Alan A. Myers in 2013, as a part of a process of reorganising the higher taxonomy of amphipods. It now also encompasses the previously recognized Caprellidea and Corophiidea.Lowry, J.K. & Myers, A.A. (2013) A Phylogeny and Classification of the Senticaudata subord. nov. (Crustacea: Amphipoda). Zootaxa 3610 (1): 1-80. The suborder is defined by the presence of strong apical setae on the 1st and 2nd uropods.
Senticaudata contains much of the world's freshwater amphipod diversity, though the majority of its species are marine. It is currently subdivided into the six infraorders Bogidiellida, Carangoliopsida, Corophiida, Gammarida, Hadziida, and Talitrida.
Infraorders Classification based on WoRMS. Families marked with "M" are monotypic (containing only one genus).
Bogidiellida Hertzog, 1936 Superfamilies: Bogidielloidea Artesiidae Holsinger, 1980 Bogidiellidae Hertzog, 1936 Parabogidiellidae Cannizzaro & Sawacki, 2020 Salentinellidae Bousfield, 1977 Carangoliopsida Bousfield, 1977 Superfamilies: Carangoliopsoidea Carangoliopsidae Bousfield, 1977 M Kairosidae Lowry & Myers, 2013 M Corophiida Leach, 1814 (sensu Lowry & Myers, 2013) This infraorder contains the families of skeleton shrimp and whale lice. The whole group was previously treated as its own suborder, Corophiidea, before being subsumed into Senticaudata.
Superfamilies:
Aetiopedesoidea Aetiopedesidae Myers & Lowry, 2003 M Paragammaropsidae Myers & Lowry, 2003 Aoroidea Aoridae Stebbing, 1899 Unciolidae Myers & Lowry, 2003 Caprelloidea Caprellidae Leach, 1814 Caprogammaridae Kudrjaschov & Vassilenko, 1966 M Cyamidae Rafinesque, 1815 Dulichiidae Dana, 1849 Podoceridae Leach, 1814 Cheluroidea Cheluridae Allman, 1847 Chevalioidea Chevaliidae Myers & Lowry, 2003 Corophioidea Ampithoidae Boeck, 1871 Corophiidae Leach, 1814 Isaeoidea Isaeidae Dana, 1852 Microprotopoidea Australomicroprotopidae Myers, Lowry & Billingham, 2016 M Microprotopidae Myers & Lowry, 2003 M Neomegamphoidea Neomegamphopidae Myers, 1981 Priscomilitaridae Hirayama, 1988 Photoidea Ischyroceridae Stebbing, 1899 Kamakidae Myers & Lowry, 2003 Photidae Boeck, 1871 Protodulichioidea Protodulichiidae Ariyama in Ariyama & Hoshino, 2019 M Rakirooidea Rakiroidae Myers & Lowry, 2003 M
Gammarida Latreille, 1802 This infraorder contains the family of scuds, along with the families endemic to Lake Baikal.
Superfamilies:
Allocrangonyctoidea Allocrangonyctidae Holsinger, 1989 M Crymostygidae Kristjánsson & Svavarsson, 2004 M Dussartiellidae Lowry & Myers, 2012 Kergueleniolidae Lowry & Myers, 2013 M Pseudoniphargidae Karaman, 1993 Crangonyctoidea Austroniphargidae Iannilli, Krapp & Ruffo, 2011 Chillagoeidae Lowry & Myers, 2012 M Crangonyctidae Bousfield, 1973 Giniphargidae Lowry & Myers, 2012 M Kotumsaridae Messouli, Holsinger & Ranga Reddy, 2007 M Neoniphargidae Bousfield, 1977 Niphargidae Bousfield, 1977 Paracrangonyctidae Bousfield, 1983 M Paramelitidae Bousfield, 1977 Perthiidae Williams & J. L. Barnard, 1988 M Pseudocrangonyctidae Holsinger, 1989 Sandroidae Lowry & Myers, 2012 M Sternophysingidae Holsinger, 1992 M Uronyctidae Lowry & Myers, 2012 M Gammaroidea Acanthogammaridae Garjajeff, 1901 Anisogammaridae Bousfield, 1977 Baikalogammaridae Kamaltynov, 2002 M Bathyporeiidae d'Udekem d'Acoz, 2011 Behningiellidae Kamaltynov, 2002 Carinogammaridae Tachteew, 2001 M Crypturopodidae Kamaltynov, 2002 Eulimnogammaridae Kamaltynov, 1999 Falklandellidae Lowry & Myers, 2012 Gammaracanthidae Bousfield, 1989 M Gammarellidae Bousfield, 1977 Gammaridae Leach, 1814 Iphigenellidae Kamaltynov, 2002 M Luciobliviidae Tomikawa, 2007 M Macrohectopidae Sowinsky, 1915 M Mesogammaridae Bousfield, 1977 Micruropodidae Kamaltynov, 1999 Ommatogammaridae Kamaltynov, 2010 Pachyschesidae Kamaltynov, 1999 M Pallaseidae Tachteew, 2001 Paraleptamphopidae Bousfield, 1983 Phreatogammaridae Bousfield, 1983 Pontogammaridae Bousfield, 1977 Sensonatoridae Lowry & Myers, 2012 M Typhlogammaridae Bousfield, 1978 Zaramillidae Lowry & Myers, 2016 M
Hadziida S. Karaman, 1943 Superfamilies:
Calliopioidea Calliopiidae G. O. Sars, 1893 Cheirocratidae d'Udekem d'Acoz, 2010 Hornelliidae d'Udekem d'Acoz, 2010 M Megaluropidae Thomas & J. L. Barnard, 1986 Pontogeneiidae Stebbing, 1906 Hadzioidea Crangoweckeliidae Lowry & Myers, 2012 Eriopisidae Lowry & Myers, 2013 Gammaroporeiidae Bousfield, 1979 M Hadziidae S. Karaman, 1943 Maeridae Krapp-Schickel, 2008 Melitidae Bousfield, 1973 Metacrangonyctidae Boutin & Messouli, 1988 Nuuanuidae Lowry & Myers, 2013 Magnovioidea Magnovidae Alves, Lowry & Jonsson, 2020 M Mirabestioidea Mirabestiidae Horton et al., 2026 M
Talitrida Rafinesque, 1815 This infraorder contains the family of terrestrial land- or sandhoppers.
Superfamilies:
Caspicoloidea Caspicolidae Birstein, 1945 M Hyaloidea Ceinidae J. L. Barnard, 1972Barnard J.L. (1972a). Gammaridean Amphipoda of Australia, Part 1. Smithsonian Contributions to Zoology, 103, 1-333 ; 194 figs. Chiltoniidae J. L. Barnard, 1972 Dogielinotidae Gurjanova, 1953 Eophliantidae Sheard, 1936 Hyalellidae Bulyčeva, 1957 M Hyalidae Bulyčeva, 1957 Najnidae J. L. Barnard, 1972 Phliantidae Stebbing, 1899 Plioplateidae J. L. Barnard, 1978Barnard J.L. (1978a). Redescription of Plioplateia K.H.Barnard, a genus of amphipod (Crustacea) from South Africa. Annals of the South African Museum, 77, 3, 47-55; 4 figs. M Temnophliantidae Griffiths, 1975 Kurioidea Kuriidae J. L. Barnard, 1964 Tulearidae Ledoyer, 1979 M Talitroidea Arcitalitridae Myers & Lowry, 2020 Brevitalitridae Myers & Lowry, 2020 Curiotalitridae Myers & Lowry, 2020 M Makawidae Myers & Lowry, 2020 Protorchestiidae Myers & Lowry, 2020 Talitridae Rafinesque, 1815 Uhlorchestiidae Myers & Lowry, 2020 M
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