Latreille, 1816
The classification of the planktonic amphipods of the South Atlantic Ocean is summarized as follows (this list includes all the planktonic or partly planktonic taxa world-wide, with South Atlantic taxa underlined). In general, only taxa recorded from the South Atlantic plankton are included in this section, and only their characters are taken into account. A few exceptions, of special interest for various reasons, are denoted with an asterisk. Descriptions of gammaridean genera modified partly from Barnard and Karaman, 1991.
Order Amphipoda Latreille, 1816
Suborder Gammaridea Latreille, 1802
Family Eusiridae Stebbing, 1888
Family Hyperiopsidae Bovallius, 1886
Family Iphimediinae Boeck, 1871
Family Lysianassidae Dana, 1849 s. l. (= Superfamily Lysianassoidea)
Family Pardaliscidae Boeck, 1871
Family Stegocephalidae Dana, 1853
Family Stilipedidae Holmes, 1908
Family Synopiidae Dana, 1853
Family Vitjazianidae Birstein and Vinogradov, 1955 (may include displaced benthic representatives of other families in shallow-water plankton, especially at night - see Am.1 Introduction)
Suborder Hyperiidea Milne Edwards, 1830
Infraorder Physosomata Pirlot, 1929
Superfamily Archaeoscinoidea Stebbing, 1904
Family Archaeoscinidae Stebbing, 1904
Superfamily Lanceoloidea Bovallius, 1887
Family Chuneolidae Wolterreck, 1909
Family Lanceolidae Bovallius, 1887
Family Microphasmidae Stephenson and Pirlot, 1931
Superfamily Scinoidea Stebbing, 1888
Family Mimonectidae Bovallius, 1885
Family Proscinidae Pirlot, 1933
Family Scinidae Stebbing, 1888
Infraorder Physocephalata Bowman and Gruner, 1973
Superfamily Vibilioidea Dana, 1853
Family Cystisomatidae Willemoes-Suhm, 1875
Family Paraphronimidae Bovallius, 1887
Family Vibiliidae Dana, 1853
Superfamily Phronimoidea Rafinesque, 1815
Family Dairellidae Bovallius, 1887
Family Hyperiidae Dana, 1853
Family Phronimidae Rafinesque, 1815
Family Phrosinidae Dana, 1853
Superfamily Lycaeopsoidea Chevreux, 1913
Family Lycaeopsidae Chevreux, 1913
Superfamily Platysceloidea Bate, 1862
Family Anapronoidae Bowman and Gruner, 1973
Family Brachyscelidae
Family Lycaeidae Claus, 1879
Family Oxycephalidae Dana, 1853
Family Parascelidae Bate, 1862
Family Platyscelidae Bate, 1862
Family Pronoidae Dana, 1853
Family Tryphanidae
Suborder Lemodipoda (= Caprellidea Leach, 1804)
Family Phtisicidae Vassilenko, 1968
Subfamily Phtisicinae