Species list, Checklist of Infraorder Gammarida (gammarid amphipods) for Johnson County (Illinois, USA)

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Checklist for Infraorder Gammarida Latreille, 1802 (gammarid amphipods)
and region Johnson County (Illinois, USA)

Class	Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans	22 32 47	Families Genera Species	Taxom
Subclass	Eumalacostraca Grobben, 1892	22 32 47	Families Genera Species	Taxom
Superorder	Peracarida Calman, 1904	18 26 33	Families Genera Species	Taxom
Order	Amphipoda Latreille, 1816 Amphipod, Amphipod Tubes, Amphipod Whips, Amphipods, Scuds	4 5 8	Families Genera Species	Taxom
Suborder	Senticaudata Lowry & Myers, 2013	3 3 6	Families Genera Species	Taxom
Infraorder	Gammarida Latreille, 1802 Gammarid amphipods	2 2 5	Families Genera Species	Taxom

List of families for Johnson County (Illinois)
2 Families width 5 Species

Crangonyctidae Bousfield, 1973	Gammarid amphipods	3	Species	Taxom
Gammaridae Leach, 1813	Gammarids	2	Species	Taxom

Genera for Johnson County (Illinois)
2 Genera with 5 Species

Crangonyx Bate, 1958		3	Species	Taxom
Gammarus Fabricius, 1940	Freshwater Shrimp Gammarus	2	Species	Taxom

Species list for Johnson County (Illinois)
5 Species

Crangonyx forbesi Hubricht & M..., 1940	Forbes crangonyctid
Crangonyx packardi S.I. Smith, 1888	Packard Cave Amphipod
Crangonyx pseudogracilis Bousfield, 1958	Northern river crangonyctid
Gammarus minus Say, 1818
Gammarus troglophilus Hubricht & M..., 1940	Leather oak

Subnodes of Gammarida with occurrences in Johnson County (Illinois)

Superfamily	Crangonyctoidea Bousfield, 1973	1 1 3	Family Genus Species	Taxom
Superfamily	Gammaroidea Leach, 1814	1 1 2	Family Genus Species	Taxom

Links, sources and further information

Gammarida at artfakta.se
Gammarida at biodiversity.org.au
Gammarida at itis.gov
Gammarida at marinespecies.org