suborder
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ...
s of the order
Amphipoda
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more than 9,900 amphipod species so far desc ...
, comprising small,
shrimp
Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are refer ...
-like
crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...
s. Until recently, in a traditional classification, it encompassed about 7,275 (92%) of the 7,900 species of amphipods described by then, in approximately 1,000
genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...
, divided among around 125
families
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Ideall ...
. That concept of Gammaridea included almost all
freshwater
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...
amphipods, while most of the members still were marine.
The group is however considered
paraphyletic
In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa ...
, and is under deconstruction by the amphipod taxonomists J. Lowry and A. Myers. In 2003 they moved several families from Gammaridea to join members of the former
Caprellidea
Caprelloidea is a superfamily of marine crustaceans in the order Amphipoda. It includes "untypical" forms of amphipods, such as the skeleton shrimps (Caprellidae) and whale lice (Cyamidae). The group was formerly treated as one of the four amphip ...
in a new suborder
Corophiidea
Corophiida is an infraorder of amphipods that contains the two parvorders Caprellidira (skeleton shrimp and whale lice) and Corophiidira.
In 2003-2013 this group was treated as a suborder, Corophiidea, which in turn had been re-established to c ...
.A. A. Myers & J. K. Lowry (2003). "A phylogeny and a new classification of the Corophiidea Leach, 1814 (Amphipoda)". Journal of Crustacean Biology 23 (2): 443–485. doi:10.1651/0278-0372 Further, in 2013 another large suborder
WoRMS Worms may refer to:
*Worm, an invertebrate animal with a tube-like body and no limbs
Places
*Worms, Germany, a city
**Worms (electoral district)
*Worms, Nebraska, U.S.
*Worms im Veltlintal, the German name for Bormio, Italy
Arts and entertainme ...
The remaining Gammaridea encompasses 85 families and about 4,000 of the ca. 9,550 amphipod species recognized in 2014.World Amphipoda Database: Introduction (accessed 26 April 2014)De Broyer, C. (2014 Gammaridea
WoRMS Worms may refer to:
*Worm, an invertebrate animal with a tube-like body and no limbs
Places
*Worms, Germany, a city
**Worms (electoral district)
*Worms, Nebraska, U.S.
*Worms im Veltlintal, the German name for Bormio, Italy
Arts and entertainme ...
The family
Gammaridae
Gammaridae is a family of amphipods. In North America they are included among the folk taxonomic category of " scuds", and otherwise gammarids is usually used as a common name.
They have a wide distribution, centered on Eurasia, and are eury ...
does not belong to Gammaridea in this new system.
Families
This list comprises those families that remain in the suborder Gammaridea after the separation of the
Senticaudata
Senticaudata is one of the four suborders of the crustacean order Amphipoda (aka scuds, sideswimmers). It includes some 5000 species, which is more than 50% or the currently recognized amphipod diversity.WoRMS Worms may refer to:
*Worm, an invertebrate animal with a tube-like body and no limbs
Places
*Worms, Germany, a city
**Worms (electoral district)
*Worms, Nebraska, U.S.
*Worms im Veltlintal, the German name for Bormio, Italy
Arts and entertainme ...
Eusiridae
Eusiridae is a family of amphipods. It contains the following genera:
*'' Cleonardo'' Stebbing, 1888
*'' Eusirella'' Chevreux, 1908
*'' Eusirogenes'' Stebbing, 1904
*'' Eusiropsis'' Stebbing, 1897
*'' Eusirus'' Krøyer, 1845
*'' Harcledo'' J. L. ...
Liljeborgiidae
Liljeborgiidae is a family of amphipods
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are mo ...
Amaryllididae
Amaryllididae is a family of marine benthic amphipods found throughout the southern hemisphere. These smooth, laterally compressed amphipods can be distinguished by the accessory setal row of the mandible having a distal tuft. It was first descr ...
Lowry & Stoddart, 2002
**
Aristiidae
Aristiidae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipo ...
Cyphocarididae
Cyphocarididae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amp ...
Lowry & Stoddart, 1997
**
Endevouridae
Endevouridae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphi ...
Lowry & Stoddart, 1997
**
Eurytheneidae
''Eurythenes'' is a genus of marine amphipods in the family Eurytheneidae.
Species
*'' E. aequilatus'' Narahara-Nakano, Nakano & Tomikawa, 2017
*'' E. andhakarae'' d'Udekem d'Acoz & Havermans, 2015
*'' E. atacamensis'' Weston & Espinosa-Leal, ...
Trischizostomatidae
''Trischizostoma'' is a genus of crustaceans belonging to the monotypic family Trischizostomatidae.
The genus has almost cosmopolitan distribution.
Species:
*''Trischizostoma barnardi''
*''Trischizostoma christochelatum''
*''Trischizostoma c ...
incertae sedis
' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...
Acanthonotozomatidae
Acanthonotozomatidae is a family (biology), family of amphipod crustaceans, which currently comprises the single genus ''Acanthonotozoma'' Boeck, 1876.
References
Gammaridea
Taxa named by Thomas Roscoe Rede Stebbing
{{Amphipod-stub ...
Alicellidae
Alicellidae is a family of amphipod crustaceans, which live as scavengers in the deep sea (at depths of ), often in association with hydrothermal vent
A hydrothermal vent is a fissure on the seabed from which geothermally heated water dischar ...
Ampeliscidae
The Ampeliscidae are a family of amphipods, distinct enough to warrant placement in a monotypic superfamily Ampeliscoidea. They are benthic, found at the bottom of seas and oceans. They are distributed worldwide, and are often abundant in areas ...
Krøyer, 1842
**
Amphilochidae
Amphilochidae is a family (biology), family of Amphipoda, amphipod crustaceans, containing the following genera:
*''Afrogitanopsis'' G. Karaman, 1980
*''Amphilochella'' Schellenberg, 1926
*''Amphilochoides'' Sars, 1895
*''Amphilochopsis'' Stephen ...
Cheluridae
Cheluridae is a family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its me ...
Didymocheliidae
Didymocheliidae is a family of crustaceans belonging to the order Amphipoda.
Genera:
* ''Aidamochelia'' Thomas & Watling, 2012
* ''Apodidymochelia'' Thurston, 1997
* ''Didymochelia'' Barnard, 1931
References
{{Taxonbar, from=Q15732818
Am ...
Exoedicerotidae
Exoedicerotidae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, am ...
Lafystiidae
Lafystiidae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphip ...
Melphidippidae
Melphidippidae is a family (biology), family of Amphipoda, amphipods which rest upside-down and feed on particles of food suspended in the water. Three genera are recognised:
*''Melphidippa'' Boeck, 1871
*''Melphidippella'' Sars, 1894
*''Melphisu ...
Platyischnopidae
Platyischnopidae is a family (biology), family of Amphipoda, amphipod crustaceans. Its members are characterised by the conical rostrum (anatomy), rostrum, which is covered with sensory pits at the end. Although digging behaviour has only been d ...
Stenothoidae
Stenothoidae is a Family (biology), family of arthropods in the Order (biology), order Amphipoda.
Genera
*''Incertae sedis''
**''Sudanea'' Krapp-Schickel, 2015
*Subfamily Stenothoinae Boeck, 1871
**''Aurometopa'' Barnard & Karaman, 1987
**''Gora ...
Boeck, 1871
**
Stilipedidae
Stilipedidae is a family (biology), family of Amphipoda, amphipods, containing the following genera:
*''Alexandrella''
*''Astyra''
*''Astyroides''
*''Bathypanoploea''
*''Stilipes''
References
External linksStilipedidae Holmes, 1908 Crustac ...
Holmes, 1908
**
Synopiidae
Synopiidae is a family of amphipods belonging to the order Amphipoda.
Genera
Genera:
* ''Austrosyrrhoe'' Barnard, 1925
* ''Bruzelia'' Boeck, 1871
* ''Bruzeliopsis'' Chevreux, 1911
References
{{Authority control
Amphipod families ...
Dana, 1853
**
Thurstonellidae
''Thurstonella'' is a monotypic genus of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, co ...
Vitjazianidae
Vitjazianidae is a family of crustaceans belonging to the order Amphipoda.
Genera:
* ''Vemana (crustacean), Vemana'' Barnard, 1964
* ''Vitjaziana'' Birstein and Vinogradov, 1955
References
{{Taxonbar, from=Q4473670
Amphipod families ...
This alternative listing of families (divided to superfamilies) reflects the composition of the Gammaridea before the revision in 2013, when much of its contents were removed to a new suborder
Senticaudata
Senticaudata is one of the four suborders of the crustacean order Amphipoda (aka scuds, sideswimmers). It includes some 5000 species, which is more than 50% or the currently recognized amphipod diversity.
Superfamily Ampeliscoidea
*
Ampeliscidae
The Ampeliscidae are a family of amphipods, distinct enough to warrant placement in a monotypic superfamily Ampeliscoidea. They are benthic, found at the bottom of seas and oceans. They are distributed worldwide, and are often abundant in areas ...
Crangonyctidae
Crangonyctidae is a family of cave-dwelling freshwater amphipod crustaceans. It contains the following genera:
*'' Amurocrangonyx'' Sidorov & Holsinger, 2007
*'' Bactrurus'' Hay, 1902
*''Crangonyx
''Crangonyx'' is a genus of crusta ...
Niphargidae
Niphargidae is a family of amphipod crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapoda, decapods, ostracoda, seed shrimp, branchiopoda, branchiopods, argulidae, fish lice, krill, ...
Paramelitidae
Paramelitidae is a family of amphipod
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more ...
Calliopiidae
Calliopiidae is a family of amphipods
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more t ...
*
Eusiridae
Eusiridae is a family of amphipods. It contains the following genera:
*'' Cleonardo'' Stebbing, 1888
*'' Eusirella'' Chevreux, 1908
*'' Eusirogenes'' Stebbing, 1904
*'' Eusiropsis'' Stebbing, 1897
*'' Eusirus'' Krøyer, 1845
*'' Harcledo'' J. L. ...
Acanthonotozomatidae
Acanthonotozomatidae is a family (biology), family of amphipod crustaceans, which currently comprises the single genus ''Acanthonotozoma'' Boeck, 1876.
References
Gammaridea
Taxa named by Thomas Roscoe Rede Stebbing
{{Amphipod-stub ...
*
Anisogammaridae
Anisogammaridae is a family of small benthic amphipods
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. ...
Cardenioidae
Synopiidae is a family of amphipods belonging to the order Amphipoda.
Genera
Genera:
* ''Austrosyrrhoe'' Barnard, 1925
* ''Bruzelia'' Boeck, 1871
* ''Bruzeliopsis'' Chevreux, 1911
References
{{Authority control
Amphipod families ...
Gammaridae
Gammaridae is a family of amphipods. In North America they are included among the folk taxonomic category of " scuds", and otherwise gammarids is usually used as a common name.
They have a wide distribution, centered on Eurasia, and are eury ...
Melitidae
Melitidae is a family of amphipods. It contains around 45 genera, and formerly included a further 40 genera that are now placed in the family Maeridae.
Genera
*'' Abludomelita''
*'' Allomelita''
*'' Alsacomelita''
*'' Anchialella''
*'' Brachi ...
Liljeborgiidae
Liljeborgiidae is a family of amphipods
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are mo ...
Amaryllididae
Amaryllididae is a family of marine benthic amphipods found throughout the southern hemisphere. These smooth, laterally compressed amphipods can be distinguished by the accessory setal row of the mandible having a distal tuft. It was first descr ...
*
Aristiidae
Aristiidae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipo ...
*
Cyphocarididae
Cyphocarididae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amp ...
*
Endevouridae
Endevouridae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphi ...
*
Eurytheneidae
''Eurythenes'' is a genus of marine amphipods in the family Eurytheneidae.
Species
*'' E. aequilatus'' Narahara-Nakano, Nakano & Tomikawa, 2017
*'' E. andhakarae'' d'Udekem d'Acoz & Havermans, 2015
*'' E. atacamensis'' Weston & Espinosa-Leal, ...
*
Lysianassidae
Lysianassidae is a family of marine amphipods, containing the following genera:
*'' Acontiostoma'' Stebbing, 1888
*'' Alibrotus'' Milne-Edwards, 1840
*'' Allogaussia'' Schellenberg, 1926
*'' Ambasia'' Boeck, 1871
*'' Ambasiella'' Schellenberg, 1 ...
Trischizostomatidae
''Trischizostoma'' is a genus of crustaceans belonging to the monotypic family Trischizostomatidae.
The genus has almost cosmopolitan distribution.
Species:
*''Trischizostoma barnardi''
*''Trischizostoma christochelatum''
*''Trischizostoma c ...
Melphidippidae
Melphidippidae is a family (biology), family of Amphipoda, amphipods which rest upside-down and feed on particles of food suspended in the water. Three genera are recognised:
*''Melphidippa'' Boeck, 1871
*''Melphidippella'' Sars, 1894
*''Melphisu ...
Exoedicerotidae
Exoedicerotidae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, am ...
Stilipedidae
Stilipedidae is a family (biology), family of Amphipoda, amphipods, containing the following genera:
*''Alexandrella''
*''Astyra''
*''Astyroides''
*''Bathypanoploea''
*''Stilipes''
References
External linksStilipedidae Holmes, 1908 Crustac ...
*
Vitjazianidae
Vitjazianidae is a family of crustaceans belonging to the order Amphipoda.
Genera:
* ''Vemana (crustacean), Vemana'' Barnard, 1964
* ''Vitjaziana'' Birstein and Vinogradov, 1955
References
{{Taxonbar, from=Q4473670
Amphipod families ...
Platyischnopidae
Platyischnopidae is a family (biology), family of Amphipoda, amphipod crustaceans. Its members are characterised by the conical rostrum (anatomy), rostrum, which is covered with sensory pits at the end. Although digging behaviour has only been d ...
Stegocephaloidea
Stegocephalidae is a little-studied family (biology), family of amphipods belonging to the suborder Gammaridea.
Description
Stegocephalids have smooth and globular bodies with a short and deep head. It has small rostrum and the highly modified m ...
Amphilochidae
Amphilochidae is a family (biology), family of Amphipoda, amphipod crustaceans, containing the following genera:
*''Afrogitanopsis'' G. Karaman, 1980
*''Amphilochella'' Schellenberg, 1926
*''Amphilochoides'' Sars, 1895
*''Amphilochopsis'' Stephen ...
Stenothoidae
Stenothoidae is a Family (biology), family of arthropods in the Order (biology), order Amphipoda.
Genera
*''Incertae sedis''
**''Sudanea'' Krapp-Schickel, 2015
*Subfamily Stenothoinae Boeck, 1871
**''Aurometopa'' Barnard & Karaman, 1987
**''Gora ...
Synopiidae
Synopiidae is a family of amphipods belonging to the order Amphipoda.
Genera
Genera:
* ''Austrosyrrhoe'' Barnard, 1925
* ''Bruzelia'' Boeck, 1871
* ''Bruzeliopsis'' Chevreux, 1911
References
{{Authority control
Amphipod families ...
Superfamily
Talitroidea
Gammaridea is one of the suborders of the order Amphipoda, comprising small, shrimp-like crustaceans. Until recently, in a traditional classification, it encompassed about 7,275 (92%) of the 7,900 species of amphipods described by then, in approx ...
Talitridae
Talitridae is a family of amphipods. Terrestrial species are often referred to as landhoppers and beach dwellers are called sandhoppers or sand fleas. The name sand flea is misleading, though, because these talitrid amphipods are not siphonapter ...
Thurstonellidae
''Thurstonella'' is a monotypic genus of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, co ...
(formerly Clarenciidae)
''
Incertae sedis
' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...
Didymocheliidae
Didymocheliidae is a family of crustaceans belonging to the order Amphipoda.
Genera:
* ''Aidamochelia'' Thomas & Watling, 2012
* ''Apodidymochelia'' Thurston, 1997
* ''Didymochelia'' Barnard, 1931
References
{{Taxonbar, from=Q15732818
Am ...
Lafystiidae
Lafystiidae is a family of crustaceans
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphip ...